./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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/main0_drivers-vhost-tcm_vhost-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 3d776a54fbebbd358d59ab0126298feae1e40360b6fb5e6158cd54ba5ef877f7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 22:45:05,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 22:45:05,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 22:45:05,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 22:45:05,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 22:45:05,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 22:45:05,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 22:45:05,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 22:45:05,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 22:45:05,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 22:45:05,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 22:45:05,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 22:45:05,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 22:45:05,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 22:45:05,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 22:45:05,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 22:45:05,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 22:45:05,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 22:45:05,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 22:45:05,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 22:45:05,234 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 22:45:05,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 22:45:05,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 22:45:05,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 22:45:05,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 22:45:05,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 22:45:05,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 22:45:05,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 22:45:05,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 22:45:05,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 22:45:05,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 22:45:05,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 22:45:05,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 22:45:05,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 22:45:05,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 22:45:05,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 22:45:05,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 22:45:05,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 22:45:05,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 22:45:05,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 22:45:05,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 22:45:05,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 22:45:05,255 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 22:45:05,286 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 22:45:05,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 22:45:05,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 22:45:05,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 22:45:05,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 22:45:05,288 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 22:45:05,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 22:45:05,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 22:45:05,289 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 22:45:05,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 22:45:05,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 22:45:05,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 22:45:05,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 22:45:05,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 22:45:05,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 22:45:05,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 22:45:05,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 22:45:05,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 22:45:05,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 22:45:05,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 22:45:05,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 22:45:05,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:45:05,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 22:45:05,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 22:45:05,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 22:45:05,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 22:45:05,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 22:45:05,294 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 22:45:05,294 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 22:45:05,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 22:45:05,295 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d776a54fbebbd358d59ab0126298feae1e40360b6fb5e6158cd54ba5ef877f7 [2022-07-19 22:45:05,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 22:45:05,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 22:45:05,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 22:45:05,575 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 22:45:05,575 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 22:45:05,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-07-19 22:45:05,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49a4f2ff8/1cf0e26a70634d5899be84fb4fde2df9/FLAGf871038b4 [2022-07-19 22:45:06,449 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 22:45:06,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-07-19 22:45:06,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49a4f2ff8/1cf0e26a70634d5899be84fb4fde2df9/FLAGf871038b4 [2022-07-19 22:45:06,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49a4f2ff8/1cf0e26a70634d5899be84fb4fde2df9 [2022-07-19 22:45:06,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 22:45:06,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 22:45:06,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 22:45:06,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 22:45:06,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 22:45:06,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:45:06" (1/1) ... [2022-07-19 22:45:06,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f50782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:06, skipping insertion in model container [2022-07-19 22:45:06,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:45:06" (1/1) ... [2022-07-19 22:45:06,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 22:45:07,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:45:09,652 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/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i[462796,462809] [2022-07-19 22:45:09,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:45:09,864 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 22:45:10,263 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/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i[462796,462809] [2022-07-19 22:45:10,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:45:10,389 INFO L208 MainTranslator]: Completed translation [2022-07-19 22:45:10,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:10 WrapperNode [2022-07-19 22:45:10,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 22:45:10,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 22:45:10,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 22:45:10,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 22:45:10,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:10" (1/1) ... [2022-07-19 22:45:10,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:10" (1/1) ... [2022-07-19 22:45:10,699 INFO L137 Inliner]: procedures = 445, calls = 3482, calls flagged for inlining = 226, calls inlined = 196, statements flattened = 7816 [2022-07-19 22:45:10,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 22:45:10,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 22:45:10,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 22:45:10,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 22:45:10,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:10" (1/1) ... [2022-07-19 22:45:10,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:10" (1/1) ... [2022-07-19 22:45:10,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:10" (1/1) ... [2022-07-19 22:45:10,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:10" (1/1) ... [2022-07-19 22:45:10,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:10" (1/1) ... [2022-07-19 22:45:10,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:10" (1/1) ... [2022-07-19 22:45:10,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:10" (1/1) ... [2022-07-19 22:45:11,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 22:45:11,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 22:45:11,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 22:45:11,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 22:45:11,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:10" (1/1) ... [2022-07-19 22:45:11,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:45:11,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:45:11,185 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) [2022-07-19 22:45:11,222 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 [2022-07-19 22:45:11,262 INFO L130 BoogieDeclarations]: Found specification of procedure vq_access_ok [2022-07-19 22:45:11,262 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_access_ok [2022-07-19 22:45:11,262 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-07-19 22:45:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-07-19 22:45:11,263 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-19 22:45:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-19 22:45:11,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 22:45:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 22:45:11,263 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-07-19 22:45:11,263 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_release_fabric_acl [2022-07-19 22:45:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_release_fabric_acl [2022-07-19 22:45:11,263 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 22:45:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 22:45:11,263 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_access_ok [2022-07-19 22:45:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_access_ok [2022-07-19 22:45:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_close_session [2022-07-19 22:45:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_close_session [2022-07-19 22:45:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-07-19 22:45:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_queue [2022-07-19 22:45:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_queue [2022-07-19 22:45:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 22:45:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tcm_vhost_mutex [2022-07-19 22:45:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tcm_vhost_mutex [2022-07-19 22:45:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-19 22:45:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-19 22:45:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-19 22:45:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-19 22:45:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-07-19 22:45:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-07-19 22:45:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure next_desc [2022-07-19 22:45:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure next_desc [2022-07-19 22:45:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_drop_tpg [2022-07-19 22:45:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_drop_tpg [2022-07-19 22:45:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-19 22:45:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-19 22:45:11,266 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-07-19 22:45:11,267 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-07-19 22:45:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_open [2022-07-19 22:45:11,267 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_open [2022-07-19 22:45:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-19 22:45:11,267 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-19 22:45:11,268 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-19 22:45:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_has_feature [2022-07-19 22:45:11,268 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_has_feature [2022-07-19 22:45:11,268 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-07-19 22:45:11,268 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-07-19 22:45:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-19 22:45:11,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-19 22:45:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-19 22:45:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 22:45:11,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-19 22:45:11,270 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-19 22:45:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_init [2022-07-19 22:45:11,270 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_init [2022-07-19 22:45:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-07-19 22:45:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-19 22:45:11,271 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-19 22:45:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_complete_cmd [2022-07-19 22:45:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_complete_cmd [2022-07-19 22:45:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-19 22:45:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-19 22:45:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2022-07-19 22:45:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2022-07-19 22:45:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure translate_desc [2022-07-19 22:45:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_desc [2022-07-19 22:45:11,273 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_put [2022-07-19 22:45:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put [2022-07-19 22:45:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-19 22:45:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-19 22:45:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure sas_get_pr_transport_id [2022-07-19 22:45:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_get_pr_transport_id [2022-07-19 22:45:11,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tv_tpg_mutex [2022-07-19 22:45:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tv_tpg_mutex [2022-07-19 22:45:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 22:45:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 22:45:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 22:45:11,275 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-19 22:45:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-07-19 22:45:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-07-19 22:45:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 22:45:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 22:45:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-19 22:45:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-19 22:45:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_seq_done [2022-07-19 22:45:11,277 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done [2022-07-19 22:45:11,291 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_disable_notify [2022-07-19 22:45:11,291 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_disable_notify [2022-07-19 22:45:11,292 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-19 22:45:11,292 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-19 22:45:11,292 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_update_used_flags [2022-07-19 22:45:11,292 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags [2022-07-19 22:45:11,293 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2022-07-19 22:45:11,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2022-07-19 22:45:11,293 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-07-19 22:45:11,293 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-07-19 22:45:11,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2022-07-19 22:45:11,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2022-07-19 22:45:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure log_access_ok [2022-07-19 22:45:11,294 INFO L138 BoogieDeclarations]: Found implementation of procedure log_access_ok [2022-07-19 22:45:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-19 22:45:11,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-19 22:45:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_alloc_fabric_acl [2022-07-19 22:45:11,296 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_alloc_fabric_acl [2022-07-19 22:45:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_tcm_vhost_mutex [2022-07-19 22:45:11,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_tcm_vhost_mutex [2022-07-19 22:45:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_ioctl [2022-07-19 22:45:11,296 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_ioctl [2022-07-19 22:45:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-19 22:45:11,297 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-19 22:45:11,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 22:45:11,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 22:45:11,297 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_drop_tport [2022-07-19 22:45:11,297 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_drop_tport [2022-07-19 22:45:11,298 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-19 22:45:11,298 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-19 22:45:11,298 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-19 22:45:11,298 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-19 22:45:11,299 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs [2022-07-19 22:45:11,299 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs [2022-07-19 22:45:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-19 22:45:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_flush [2022-07-19 22:45:11,301 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_flush [2022-07-19 22:45:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 22:45:11,302 INFO L130 BoogieDeclarations]: Found specification of procedure log_write [2022-07-19 22:45:11,303 INFO L138 BoogieDeclarations]: Found implementation of procedure log_write [2022-07-19 22:45:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-19 22:45:11,304 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-19 22:45:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_reset [2022-07-19 22:45:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_reset [2022-07-19 22:45:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-19 22:45:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-19 22:45:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure vq_log_access_ok [2022-07-19 22:45:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_log_access_ok [2022-07-19 22:45:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-19 22:45:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-19 22:45:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 22:45:11,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 22:45:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-19 22:45:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-19 22:45:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_queue [2022-07-19 22:45:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_queue [2022-07-19 22:45:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-19 22:45:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-19 22:45:11,310 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-19 22:45:11,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-19 22:45:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_fget [2022-07-19 22:45:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_fget [2022-07-19 22:45:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 22:45:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-19 22:45:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-19 22:45:11,311 INFO L130 BoogieDeclarations]: Found specification of procedure vq_memory_access_ok [2022-07-19 22:45:11,311 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok [2022-07-19 22:45:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 22:45:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-07-19 22:45:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-07-19 22:45:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_release_cmd [2022-07-19 22:45:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_release_cmd [2022-07-19 22:45:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_set_default_node_attrs [2022-07-19 22:45:11,312 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_set_default_node_attrs [2022-07-19 22:45:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_drop_nexus [2022-07-19 22:45:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_drop_nexus [2022-07-19 22:45:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 22:45:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup [2022-07-19 22:45:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup [2022-07-19 22:45:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-19 22:45:11,313 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-19 22:45:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_tv_tpg_mutex [2022-07-19 22:45:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_tv_tpg_mutex [2022-07-19 22:45:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-19 22:45:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-19 22:45:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-19 22:45:11,314 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-19 22:45:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure sas_get_fabric_proto_ident [2022-07-19 22:45:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_get_fabric_proto_ident [2022-07-19 22:45:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-19 22:45:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-19 22:45:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure get_user_pages_fast [2022-07-19 22:45:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure get_user_pages_fast [2022-07-19 22:45:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2022-07-19 22:45:11,315 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2022-07-19 22:45:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_deregister [2022-07-19 22:45:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_deregister [2022-07-19 22:45:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-19 22:45:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-19 22:45:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2022-07-19 22:45:11,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2022-07-19 22:45:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_command_size [2022-07-19 22:45:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_command_size [2022-07-19 22:45:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_dump_proto_id [2022-07-19 22:45:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_dump_proto_id [2022-07-19 22:45:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget [2022-07-19 22:45:11,317 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget [2022-07-19 22:45:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 22:45:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 22:45:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 22:45:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2022-07-19 22:45:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2022-07-19 22:45:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_clear_endpoint [2022-07-19 22:45:11,319 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_clear_endpoint [2022-07-19 22:45:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure mmput [2022-07-19 22:45:11,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mmput [2022-07-19 22:45:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-19 22:45:11,320 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-19 22:45:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 22:45:11,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 22:45:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_flush_vq [2022-07-19 22:45:11,320 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_flush_vq [2022-07-19 22:45:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-07-19 22:45:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-07-19 22:45:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2022-07-19 22:45:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2022-07-19 22:45:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-19 22:45:11,321 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-19 22:45:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure sas_parse_pr_out_transport_id [2022-07-19 22:45:11,322 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_parse_pr_out_transport_id [2022-07-19 22:45:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_signal [2022-07-19 22:45:11,322 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_signal [2022-07-19 22:45:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure utsname [2022-07-19 22:45:11,322 INFO L138 BoogieDeclarations]: Found implementation of procedure utsname [2022-07-19 22:45:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_stop [2022-07-19 22:45:11,322 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_stop [2022-07-19 22:45:11,322 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-19 22:45:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-19 22:45:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure memory_access_ok [2022-07-19 22:45:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_access_ok [2022-07-19 22:45:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-07-19 22:45:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-07-19 22:45:11,323 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used [2022-07-19 22:45:11,323 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used [2022-07-19 22:45:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-19 22:45:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-19 22:45:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-19 22:45:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-19 22:45:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-19 22:45:11,324 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-19 22:45:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_drop_nodeacl [2022-07-19 22:45:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_drop_nodeacl [2022-07-19 22:45:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_flush [2022-07-19 22:45:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_flush [2022-07-19 22:45:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_release [2022-07-19 22:45:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_release [2022-07-19 22:45:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_signal [2022-07-19 22:45:11,325 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_signal [2022-07-19 22:45:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 22:45:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure sas_get_pr_transport_id_len [2022-07-19 22:45:11,327 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_get_pr_transport_id_len [2022-07-19 22:45:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_port_link [2022-07-19 22:45:11,329 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_port_link [2022-07-19 22:45:12,281 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 22:45:12,284 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 22:45:17,408 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7455: assume #t~switch210;#res := ~ret~1; [2022-07-19 22:45:17,408 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7455: assume !#t~switch210;#t~switch210 := #t~switch210 || 4 == ~size; [2022-07-19 22:45:17,408 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7488: assume 0 != ~tmp___1~4;#res := ~ret~1; [2022-07-19 22:45:17,408 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7488: assume !(0 != ~tmp___1~4);#res := ~ret~1; [2022-07-19 22:45:17,409 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7449: havoc #t~switch210; [2022-07-19 22:45:17,410 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7474: SUMMARY for call #t~ret211 := ldv__builtin_expect((if 0 != ~ret~1 then 1 else 0), 0); srcloc: null [2022-07-19 22:45:17,410 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7470: assume #t~switch210; [2022-07-19 22:45:17,410 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7470: assume !#t~switch210;#t~switch210 := #t~switch210 || 16 == ~size; [2022-07-19 22:45:17,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7474-1: assume -9223372036854775808 <= #t~ret211 && #t~ret211 <= 9223372036854775807;~tmp___0~9 := #t~ret211;havoc #t~ret211; [2022-07-19 22:45:17,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch210;#res := ~ret~1; [2022-07-19 22:45:17,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7497-1: ~tmp___2~3 := #t~ret213;havoc #t~ret213;#res := (if ~tmp___2~3 % 18446744073709551616 % 4294967296 <= 2147483647 then ~tmp___2~3 % 18446744073709551616 % 4294967296 else ~tmp___2~3 % 18446744073709551616 % 4294967296 - 4294967296); [2022-07-19 22:45:17,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7497: SUMMARY for call #t~ret213 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2022-07-19 22:45:17,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch210;#t~switch210 := #t~switch210 || 2 == ~size; [2022-07-19 22:45:17,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7460: assume #t~switch210;#res := ~ret~1; [2022-07-19 22:45:17,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7460: assume !#t~switch210;#t~switch210 := #t~switch210 || 8 == ~size; [2022-07-19 22:45:17,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7487-1: assume -9223372036854775808 <= #t~ret212 && #t~ret212 <= 9223372036854775807;~tmp___1~4 := #t~ret212;havoc #t~ret212; [2022-07-19 22:45:17,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7487: SUMMARY for call #t~ret212 := ldv__builtin_expect((if 0 != ~ret~1 then 1 else 0), 0); srcloc: null [2022-07-19 22:45:17,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7483: assume #t~switch210; [2022-07-19 22:45:17,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7483: assume !#t~switch210;#t~switch210 := true; [2022-07-19 22:45:17,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7475: assume 0 != ~tmp___0~9;#res := ~ret~1; [2022-07-19 22:45:17,412 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7475: assume !(0 != ~tmp___0~9);#res := ~ret~1; [2022-07-19 22:45:17,413 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7496: assume #t~switch210; [2022-07-19 22:45:17,413 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7496: assume !#t~switch210; [2022-07-19 22:45:17,413 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7465: assume #t~switch210;#res := ~ret~1; [2022-07-19 22:45:17,413 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7465: assume !#t~switch210;#t~switch210 := #t~switch210 || 10 == ~size; [2022-07-19 22:45:21,879 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 22:45:21,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 22:45:21,906 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 22:45:21,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:45:21 BoogieIcfgContainer [2022-07-19 22:45:21,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 22:45:21,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 22:45:21,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 22:45:21,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 22:45:21,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:45:06" (1/3) ... [2022-07-19 22:45:21,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68130c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:45:21, skipping insertion in model container [2022-07-19 22:45:21,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:10" (2/3) ... [2022-07-19 22:45:21,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68130c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:45:21, skipping insertion in model container [2022-07-19 22:45:21,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:45:21" (3/3) ... [2022-07-19 22:45:21,919 INFO L111 eAbstractionObserver]: Analyzing ICFG main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-07-19 22:45:21,932 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 22:45:21,932 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 22:45:22,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 22:45:22,049 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@32a82dab, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@758ecbf4 [2022-07-19 22:45:22,049 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 22:45:22,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 2457 states, 1699 states have (on average 1.3507945850500294) internal successors, (2295), 1749 states have internal predecessors, (2295), 642 states have call successors, (642), 114 states have call predecessors, (642), 114 states have return successors, (642), 630 states have call predecessors, (642), 642 states have call successors, (642) [2022-07-19 22:45:22,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-19 22:45:22,067 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:45:22,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:45:22,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:45:22,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:45:22,074 INFO L85 PathProgramCache]: Analyzing trace with hash 450761681, now seen corresponding path program 1 times [2022-07-19 22:45:22,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:45:22,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476030690] [2022-07-19 22:45:22,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:45:22,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:45:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:45:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:45:22,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:45:22,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476030690] [2022-07-19 22:45:22,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476030690] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:45:22,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:45:22,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:45:22,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838897556] [2022-07-19 22:45:22,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:45:22,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:45:22,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:45:22,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:45:22,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:45:22,615 INFO L87 Difference]: Start difference. First operand has 2457 states, 1699 states have (on average 1.3507945850500294) internal successors, (2295), 1749 states have internal predecessors, (2295), 642 states have call successors, (642), 114 states have call predecessors, (642), 114 states have return successors, (642), 630 states have call predecessors, (642), 642 states have call successors, (642) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-07-19 22:45:22,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:45:22,908 INFO L93 Difference]: Finished difference Result 4893 states and 7240 transitions. [2022-07-19 22:45:22,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:45:22,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 15 [2022-07-19 22:45:22,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:45:22,943 INFO L225 Difference]: With dead ends: 4893 [2022-07-19 22:45:22,944 INFO L226 Difference]: Without dead ends: 2441 [2022-07-19 22:45:22,960 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 [2022-07-19 22:45:22,963 INFO L413 NwaCegarLoop]: 3555 mSDtfsCounter, 3546 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3546 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:45:22,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3546 Valid, 3555 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 22:45:22,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2022-07-19 22:45:23,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2441. [2022-07-19 22:45:23,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 1686 states have (on average 1.3422301304863582) internal successors, (2263), 1733 states have internal predecessors, (2263), 641 states have call successors, (641), 114 states have call predecessors, (641), 113 states have return successors, (630), 618 states have call predecessors, (630), 630 states have call successors, (630) [2022-07-19 22:45:23,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3534 transitions. [2022-07-19 22:45:23,168 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3534 transitions. Word has length 15 [2022-07-19 22:45:23,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:45:23,169 INFO L495 AbstractCegarLoop]: Abstraction has 2441 states and 3534 transitions. [2022-07-19 22:45:23,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-07-19 22:45:23,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3534 transitions. [2022-07-19 22:45:23,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-19 22:45:23,170 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:45:23,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:45:23,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 22:45:23,171 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:45:23,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:45:23,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1087560763, now seen corresponding path program 1 times [2022-07-19 22:45:23,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:45:23,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22034277] [2022-07-19 22:45:23,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:45:23,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:45:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:23,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:45:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:23,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:45:23,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:45:23,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22034277] [2022-07-19 22:45:23,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22034277] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:45:23,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:45:23,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:45:23,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596432080] [2022-07-19 22:45:23,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:45:23,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:45:23,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:45:23,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:45:23,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:45:23,336 INFO L87 Difference]: Start difference. First operand 2441 states and 3534 transitions. 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) [2022-07-19 22:45:23,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:45:23,445 INFO L93 Difference]: Finished difference Result 2443 states and 3535 transitions. [2022-07-19 22:45:23,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:45:23,446 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 [2022-07-19 22:45:23,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:45:23,460 INFO L225 Difference]: With dead ends: 2443 [2022-07-19 22:45:23,460 INFO L226 Difference]: Without dead ends: 2440 [2022-07-19 22:45:23,465 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 [2022-07-19 22:45:23,467 INFO L413 NwaCegarLoop]: 3531 mSDtfsCounter, 3521 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3521 SdHoareTripleChecker+Valid, 3531 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 [2022-07-19 22:45:23,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3521 Valid, 3531 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:45:23,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2022-07-19 22:45:23,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2440. [2022-07-19 22:45:23,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 1686 states have (on average 1.3416370106761566) internal successors, (2262), 1732 states have internal predecessors, (2262), 640 states have call successors, (640), 114 states have call predecessors, (640), 113 states have return successors, (630), 618 states have call predecessors, (630), 630 states have call successors, (630) [2022-07-19 22:45:23,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 3532 transitions. [2022-07-19 22:45:23,580 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 3532 transitions. Word has length 16 [2022-07-19 22:45:23,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:45:23,581 INFO L495 AbstractCegarLoop]: Abstraction has 2440 states and 3532 transitions. [2022-07-19 22:45:23,581 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) [2022-07-19 22:45:23,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 3532 transitions. [2022-07-19 22:45:23,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-19 22:45:23,582 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:45:23,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:45:23,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 22:45:23,583 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:45:23,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:45:23,584 INFO L85 PathProgramCache]: Analyzing trace with hash -646499308, now seen corresponding path program 1 times [2022-07-19 22:45:23,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:45:23,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212791778] [2022-07-19 22:45:23,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:45:23,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:45:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:45:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:23,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:45:23,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:45:23,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212791778] [2022-07-19 22:45:23,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212791778] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:45:23,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:45:23,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:45:23,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240296150] [2022-07-19 22:45:23,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:45:23,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:45:23,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:45:23,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:45:23,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:45:23,805 INFO L87 Difference]: Start difference. First operand 2440 states and 3532 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) [2022-07-19 22:45:23,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:45:23,922 INFO L93 Difference]: Finished difference Result 2442 states and 3533 transitions. [2022-07-19 22:45:23,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:45:23,923 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 [2022-07-19 22:45:23,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:45:23,936 INFO L225 Difference]: With dead ends: 2442 [2022-07-19 22:45:23,937 INFO L226 Difference]: Without dead ends: 2439 [2022-07-19 22:45:23,939 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 [2022-07-19 22:45:23,940 INFO L413 NwaCegarLoop]: 3529 mSDtfsCounter, 3518 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3518 SdHoareTripleChecker+Valid, 3529 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 [2022-07-19 22:45:23,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3518 Valid, 3529 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:45:23,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2022-07-19 22:45:24,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2439. [2022-07-19 22:45:24,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 1686 states have (on average 1.341043890865955) internal successors, (2261), 1731 states have internal predecessors, (2261), 639 states have call successors, (639), 114 states have call predecessors, (639), 113 states have return successors, (630), 618 states have call predecessors, (630), 630 states have call successors, (630) [2022-07-19 22:45:24,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3530 transitions. [2022-07-19 22:45:24,059 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3530 transitions. Word has length 17 [2022-07-19 22:45:24,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:45:24,060 INFO L495 AbstractCegarLoop]: Abstraction has 2439 states and 3530 transitions. [2022-07-19 22:45:24,060 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) [2022-07-19 22:45:24,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3530 transitions. [2022-07-19 22:45:24,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-19 22:45:24,061 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:45:24,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:45:24,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 22:45:24,062 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:45:24,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:45:24,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1432218206, now seen corresponding path program 1 times [2022-07-19 22:45:24,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:45:24,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670714014] [2022-07-19 22:45:24,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:45:24,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:45:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:24,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:45:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:24,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:45:24,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:45:24,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670714014] [2022-07-19 22:45:24,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670714014] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:45:24,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:45:24,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:45:24,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40517605] [2022-07-19 22:45:24,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:45:24,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:45:24,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:45:24,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:45:24,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:45:24,198 INFO L87 Difference]: Start difference. First operand 2439 states and 3530 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) [2022-07-19 22:45:24,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:45:24,375 INFO L93 Difference]: Finished difference Result 5743 states and 8187 transitions. [2022-07-19 22:45:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:45:24,376 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 [2022-07-19 22:45:24,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:45:24,396 INFO L225 Difference]: With dead ends: 5743 [2022-07-19 22:45:24,396 INFO L226 Difference]: Without dead ends: 3343 [2022-07-19 22:45:24,407 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 [2022-07-19 22:45:24,408 INFO L413 NwaCegarLoop]: 3831 mSDtfsCounter, 1910 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 6607 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:45:24,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 6607 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:45:24,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3343 states. [2022-07-19 22:45:24,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3343 to 3336. [2022-07-19 22:45:24,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 2300 states have (on average 1.3169565217391304) internal successors, (3029), 2367 states have internal predecessors, (3029), 838 states have call successors, (838), 200 states have call predecessors, (838), 197 states have return successors, (832), 806 states have call predecessors, (832), 826 states have call successors, (832) [2022-07-19 22:45:24,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4699 transitions. [2022-07-19 22:45:24,565 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4699 transitions. Word has length 18 [2022-07-19 22:45:24,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:45:24,566 INFO L495 AbstractCegarLoop]: Abstraction has 3336 states and 4699 transitions. [2022-07-19 22:45:24,566 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) [2022-07-19 22:45:24,566 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4699 transitions. [2022-07-19 22:45:24,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 22:45:24,569 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:45:24,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:45:24,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 22:45:24,570 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:45:24,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:45:24,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1447956567, now seen corresponding path program 1 times [2022-07-19 22:45:24,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:45:24,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951046266] [2022-07-19 22:45:24,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:45:24,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:45:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:45:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:24,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:45:24,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:45:24,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951046266] [2022-07-19 22:45:24,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951046266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:45:24,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:45:24,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:45:24,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614073590] [2022-07-19 22:45:24,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:45:24,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:45:24,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:45:24,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:45:24,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:45:24,703 INFO L87 Difference]: Start difference. First operand 3336 states and 4699 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) [2022-07-19 22:45:24,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:45:24,887 INFO L93 Difference]: Finished difference Result 3371 states and 4726 transitions. [2022-07-19 22:45:24,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:45:24,889 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 [2022-07-19 22:45:24,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:45:24,908 INFO L225 Difference]: With dead ends: 3371 [2022-07-19 22:45:24,908 INFO L226 Difference]: Without dead ends: 3367 [2022-07-19 22:45:24,910 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 [2022-07-19 22:45:24,911 INFO L413 NwaCegarLoop]: 3524 mSDtfsCounter, 3444 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3444 SdHoareTripleChecker+Valid, 3608 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:45:24,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3444 Valid, 3608 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:45:24,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2022-07-19 22:45:25,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3363. [2022-07-19 22:45:25,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 2321 states have (on average 1.3136579060749678) internal successors, (3049), 2386 states have internal predecessors, (3049), 836 states have call successors, (836), 208 states have call predecessors, (836), 205 states have return successors, (832), 806 states have call predecessors, (832), 826 states have call successors, (832) [2022-07-19 22:45:25,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 4717 transitions. [2022-07-19 22:45:25,053 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 4717 transitions. Word has length 19 [2022-07-19 22:45:25,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:45:25,053 INFO L495 AbstractCegarLoop]: Abstraction has 3363 states and 4717 transitions. [2022-07-19 22:45:25,053 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) [2022-07-19 22:45:25,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 4717 transitions. [2022-07-19 22:45:25,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-19 22:45:25,054 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:45:25,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:45:25,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 22:45:25,055 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:45:25,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:45:25,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1935850625, now seen corresponding path program 1 times [2022-07-19 22:45:25,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:45:25,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879230155] [2022-07-19 22:45:25,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:45:25,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:45:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:45:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:25,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 22:45:25,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:45:25,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879230155] [2022-07-19 22:45:25,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879230155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:45:25,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:45:25,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:45:25,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810373295] [2022-07-19 22:45:25,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:45:25,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:45:25,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:45:25,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:45:25,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:45:25,171 INFO L87 Difference]: Start difference. First operand 3363 states and 4717 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-07-19 22:45:25,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:45:25,308 INFO L93 Difference]: Finished difference Result 3397 states and 4751 transitions. [2022-07-19 22:45:25,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:45:25,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 20 [2022-07-19 22:45:25,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:45:25,325 INFO L225 Difference]: With dead ends: 3397 [2022-07-19 22:45:25,325 INFO L226 Difference]: Without dead ends: 3373 [2022-07-19 22:45:25,328 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 [2022-07-19 22:45:25,329 INFO L413 NwaCegarLoop]: 3522 mSDtfsCounter, 3432 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3432 SdHoareTripleChecker+Valid, 3608 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:45:25,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3432 Valid, 3608 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:45:25,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2022-07-19 22:45:25,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 3371. [2022-07-19 22:45:25,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3371 states, 2329 states have (on average 1.3125805066552167) internal successors, (3057), 2392 states have internal predecessors, (3057), 830 states have call successors, (830), 214 states have call predecessors, (830), 211 states have return successors, (828), 802 states have call predecessors, (828), 822 states have call successors, (828) [2022-07-19 22:45:25,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3371 states to 3371 states and 4715 transitions. [2022-07-19 22:45:25,481 INFO L78 Accepts]: Start accepts. Automaton has 3371 states and 4715 transitions. Word has length 20 [2022-07-19 22:45:25,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:45:25,481 INFO L495 AbstractCegarLoop]: Abstraction has 3371 states and 4715 transitions. [2022-07-19 22:45:25,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-07-19 22:45:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3371 states and 4715 transitions. [2022-07-19 22:45:25,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-19 22:45:25,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:45:25,490 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] [2022-07-19 22:45:25,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 22:45:25,491 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:45:25,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:45:25,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1344205755, now seen corresponding path program 1 times [2022-07-19 22:45:25,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:45:25,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886847983] [2022-07-19 22:45:25,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:45:25,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:45:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:25,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:45:25,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:25,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 22:45:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:25,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-19 22:45:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:25,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-19 22:45:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:25,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-19 22:45:25,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:45:25,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886847983] [2022-07-19 22:45:25,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886847983] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:45:25,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:45:25,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:45:25,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114105291] [2022-07-19 22:45:25,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:45:25,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:45:25,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:45:25,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:45:25,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:45:25,743 INFO L87 Difference]: Start difference. First operand 3371 states and 4715 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 22:45:28,396 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 [] [2022-07-19 22:45:30,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:45:30,825 INFO L93 Difference]: Finished difference Result 5247 states and 7260 transitions. [2022-07-19 22:45:30,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:45:30,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2022-07-19 22:45:30,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:45:30,843 INFO L225 Difference]: With dead ends: 5247 [2022-07-19 22:45:30,843 INFO L226 Difference]: Without dead ends: 2682 [2022-07-19 22:45:30,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:45:30,856 INFO L413 NwaCegarLoop]: 3052 mSDtfsCounter, 2362 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 1906 mSolverCounterSat, 899 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 4959 SdHoareTripleChecker+Invalid, 2806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 899 IncrementalHoareTripleChecker+Valid, 1906 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-07-19 22:45:30,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2729 Valid, 4959 Invalid, 2806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [899 Valid, 1906 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-07-19 22:45:30,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2022-07-19 22:45:30,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2560. [2022-07-19 22:45:30,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 1769 states have (on average 1.3024307518371963) internal successors, (2304), 1809 states have internal predecessors, (2304), 622 states have call successors, (622), 170 states have call predecessors, (622), 168 states have return successors, (615), 603 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-19 22:45:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3541 transitions. [2022-07-19 22:45:30,982 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3541 transitions. Word has length 50 [2022-07-19 22:45:30,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:45:30,984 INFO L495 AbstractCegarLoop]: Abstraction has 2560 states and 3541 transitions. [2022-07-19 22:45:30,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 22:45:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3541 transitions. [2022-07-19 22:45:30,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-19 22:45:30,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:45:30,991 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:45:30,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 22:45:30,992 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:45:30,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:45:30,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1687789997, now seen corresponding path program 1 times [2022-07-19 22:45:30,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:45:30,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339448397] [2022-07-19 22:45:30,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:45:30,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:45:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:31,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:45:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:31,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 22:45:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:31,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-19 22:45:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:31,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 22:45:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:31,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-19 22:45:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:31,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 22:45:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:31,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-19 22:45:31,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:45:31,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339448397] [2022-07-19 22:45:31,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339448397] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:45:31,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:45:31,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:45:31,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303830828] [2022-07-19 22:45:31,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:45:31,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:45:31,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:45:31,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:45:31,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:45:31,181 INFO L87 Difference]: Start difference. First operand 2560 states and 3541 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-19 22:45:33,832 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 [] [2022-07-19 22:45:36,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:45:36,269 INFO L93 Difference]: Finished difference Result 5229 states and 7272 transitions. [2022-07-19 22:45:36,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 22:45:36,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 71 [2022-07-19 22:45:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:45:36,352 INFO L225 Difference]: With dead ends: 5229 [2022-07-19 22:45:36,353 INFO L226 Difference]: Without dead ends: 2682 [2022-07-19 22:45:36,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:45:36,361 INFO L413 NwaCegarLoop]: 2996 mSDtfsCounter, 976 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 621 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 5953 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-07-19 22:45:36,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 5953 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 2071 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-07-19 22:45:36,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2022-07-19 22:45:36,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2560. [2022-07-19 22:45:36,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 1769 states have (on average 1.2990390050876202) internal successors, (2298), 1809 states have internal predecessors, (2298), 622 states have call successors, (622), 170 states have call predecessors, (622), 168 states have return successors, (615), 603 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-19 22:45:36,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3535 transitions. [2022-07-19 22:45:36,471 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3535 transitions. Word has length 71 [2022-07-19 22:45:36,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:45:36,471 INFO L495 AbstractCegarLoop]: Abstraction has 2560 states and 3535 transitions. [2022-07-19 22:45:36,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-19 22:45:36,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3535 transitions. [2022-07-19 22:45:36,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-19 22:45:36,477 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:45:36,478 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:45:36,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 22:45:36,478 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:45:36,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:45:36,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1685524286, now seen corresponding path program 1 times [2022-07-19 22:45:36,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:45:36,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760239236] [2022-07-19 22:45:36,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:45:36,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:45:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:36,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:45:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:36,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 22:45:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:36,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 22:45:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:36,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:45:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:36,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 22:45:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:36,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-19 22:45:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:36,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 22:45:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:36,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 22:45:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:36,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 22:45:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:36,732 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-19 22:45:36,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:45:36,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760239236] [2022-07-19 22:45:36,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760239236] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:45:36,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:45:36,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 22:45:36,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021861075] [2022-07-19 22:45:36,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:45:36,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 22:45:36,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:45:36,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 22:45:36,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 22:45:36,736 INFO L87 Difference]: Start difference. First operand 2560 states and 3535 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-19 22:45:39,729 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 [] [2022-07-19 22:45:41,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:45:43,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:45:47,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:45:47,421 INFO L93 Difference]: Finished difference Result 5189 states and 7183 transitions. [2022-07-19 22:45:47,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:45:47,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2022-07-19 22:45:47,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:45:47,437 INFO L225 Difference]: With dead ends: 5189 [2022-07-19 22:45:47,437 INFO L226 Difference]: Without dead ends: 2680 [2022-07-19 22:45:47,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-19 22:45:47,447 INFO L413 NwaCegarLoop]: 2996 mSDtfsCounter, 984 mSDsluCounter, 6474 mSDsCounter, 0 mSdLazyCounter, 5026 mSolverCounterSat, 614 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 9470 SdHoareTripleChecker+Invalid, 5643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 5026 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-07-19 22:45:47,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 9470 Invalid, 5643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 5026 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2022-07-19 22:45:47,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2022-07-19 22:45:47,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2560. [2022-07-19 22:45:47,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 1769 states have (on average 1.2984737139626907) internal successors, (2297), 1808 states have internal predecessors, (2297), 622 states have call successors, (622), 170 states have call predecessors, (622), 168 states have return successors, (615), 603 states have call predecessors, (615), 615 states have call successors, (615) [2022-07-19 22:45:47,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3534 transitions. [2022-07-19 22:45:47,661 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3534 transitions. Word has length 81 [2022-07-19 22:45:47,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:45:47,662 INFO L495 AbstractCegarLoop]: Abstraction has 2560 states and 3534 transitions. [2022-07-19 22:45:47,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-19 22:45:47,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3534 transitions. [2022-07-19 22:45:47,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-19 22:45:47,667 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:45:47,667 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:45:47,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 22:45:47,668 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:45:47,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:45:47,668 INFO L85 PathProgramCache]: Analyzing trace with hash -296859111, now seen corresponding path program 1 times [2022-07-19 22:45:47,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:45:47,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420331246] [2022-07-19 22:45:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:45:47,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:45:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:45:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:47,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 22:45:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:47,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 22:45:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:47,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-19 22:45:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:47,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:45:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:47,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 22:45:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:47,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-19 22:45:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:47,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 22:45:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:47,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 22:45:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:47,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-19 22:45:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:47,922 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-19 22:45:47,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:45:47,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420331246] [2022-07-19 22:45:47,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420331246] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:45:47,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:45:47,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 22:45:47,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765207753] [2022-07-19 22:45:47,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:45:47,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 22:45:47,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:45:47,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 22:45:47,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 22:45:47,925 INFO L87 Difference]: Start difference. First operand 2560 states and 3534 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-19 22:45:50,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:45:52,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:45:54,945 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 [] [2022-07-19 22:45:58,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:45:58,294 INFO L93 Difference]: Finished difference Result 5188 states and 7181 transitions. [2022-07-19 22:45:58,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:45:58,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2022-07-19 22:45:58,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:45:58,310 INFO L225 Difference]: With dead ends: 5188 [2022-07-19 22:45:58,310 INFO L226 Difference]: Without dead ends: 2669 [2022-07-19 22:45:58,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-19 22:45:58,320 INFO L413 NwaCegarLoop]: 2995 mSDtfsCounter, 985 mSDsluCounter, 6470 mSDsCounter, 0 mSdLazyCounter, 5020 mSolverCounterSat, 616 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 9465 SdHoareTripleChecker+Invalid, 5639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 5020 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-07-19 22:45:58,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 9465 Invalid, 5639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 5020 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2022-07-19 22:45:58,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2669 states. [2022-07-19 22:45:58,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2669 to 2549. [2022-07-19 22:45:58,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 1762 states have (on average 1.2985244040862656) internal successors, (2288), 1801 states have internal predecessors, (2288), 620 states have call successors, (620), 168 states have call predecessors, (620), 166 states have return successors, (613), 601 states have call predecessors, (613), 613 states have call successors, (613) [2022-07-19 22:45:58,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 3521 transitions. [2022-07-19 22:45:58,423 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 3521 transitions. Word has length 88 [2022-07-19 22:45:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:45:58,423 INFO L495 AbstractCegarLoop]: Abstraction has 2549 states and 3521 transitions. [2022-07-19 22:45:58,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-19 22:45:58,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 3521 transitions. [2022-07-19 22:45:58,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-19 22:45:58,428 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:45:58,428 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:45:58,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 22:45:58,428 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:45:58,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:45:58,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1782157613, now seen corresponding path program 1 times [2022-07-19 22:45:58,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:45:58,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519739973] [2022-07-19 22:45:58,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:45:58,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:45:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:45:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 22:45:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 22:45:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 22:45:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:45:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-19 22:45:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-19 22:45:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:45:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 22:45:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-19 22:45:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 22:45:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 22:45:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 22:45:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:45:58,809 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-19 22:45:58,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:45:58,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519739973] [2022-07-19 22:45:58,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519739973] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:45:58,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:45:58,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 22:45:58,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15070029] [2022-07-19 22:45:58,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:45:58,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 22:45:58,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:45:58,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 22:45:58,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 22:45:58,812 INFO L87 Difference]: Start difference. First operand 2549 states and 3521 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-19 22:46:01,800 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 [] [2022-07-19 22:46:03,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:46:08,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:46:08,088 INFO L93 Difference]: Finished difference Result 5304 states and 7360 transitions. [2022-07-19 22:46:08,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 22:46:08,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2022-07-19 22:46:08,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:46:08,104 INFO L225 Difference]: With dead ends: 5304 [2022-07-19 22:46:08,104 INFO L226 Difference]: Without dead ends: 2794 [2022-07-19 22:46:08,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-19 22:46:08,114 INFO L413 NwaCegarLoop]: 2960 mSDtfsCounter, 1644 mSDsluCounter, 5694 mSDsCounter, 0 mSdLazyCounter, 4690 mSolverCounterSat, 1501 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 8654 SdHoareTripleChecker+Invalid, 6193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1501 IncrementalHoareTripleChecker+Valid, 4690 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:46:08,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1792 Valid, 8654 Invalid, 6193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1501 Valid, 4690 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-07-19 22:46:08,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2022-07-19 22:46:08,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 2549. [2022-07-19 22:46:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 1762 states have (on average 1.2979568671963677) internal successors, (2287), 1801 states have internal predecessors, (2287), 620 states have call successors, (620), 168 states have call predecessors, (620), 166 states have return successors, (613), 601 states have call predecessors, (613), 613 states have call successors, (613) [2022-07-19 22:46:08,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 3520 transitions. [2022-07-19 22:46:08,227 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 3520 transitions. Word has length 109 [2022-07-19 22:46:08,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:46:08,228 INFO L495 AbstractCegarLoop]: Abstraction has 2549 states and 3520 transitions. [2022-07-19 22:46:08,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-19 22:46:08,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 3520 transitions. [2022-07-19 22:46:08,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-19 22:46:08,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:46:08,233 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:46:08,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 22:46:08,233 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:46:08,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:46:08,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1340529683, now seen corresponding path program 1 times [2022-07-19 22:46:08,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:46:08,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651604484] [2022-07-19 22:46:08,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:08,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:46:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:08,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:46:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:08,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 22:46:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:08,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 22:46:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:08,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 22:46:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:08,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:46:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:09,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:46:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:09,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-19 22:46:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:09,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 22:46:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:09,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:46:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:09,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 22:46:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-19 22:46:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:09,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 22:46:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:09,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 22:46:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:09,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 22:46:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-19 22:46:09,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:46:09,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651604484] [2022-07-19 22:46:09,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651604484] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:46:09,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803593960] [2022-07-19 22:46:09,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:09,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:46:09,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:46:09,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:46:09,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 22:46:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:10,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 2816 conjuncts, 41 conjunts are in the unsatisfiable core [2022-07-19 22:46:10,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:46:10,322 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 22:46:10,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:46:10,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803593960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:46:10,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:46:10,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 16 [2022-07-19 22:46:10,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529395462] [2022-07-19 22:46:10,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:46:10,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 22:46:10,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:46:10,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 22:46:10,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-07-19 22:46:10,325 INFO L87 Difference]: Start difference. First operand 2549 states and 3520 transitions. Second operand has 12 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-19 22:46:12,540 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 [] [2022-07-19 22:46:13,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:46:13,963 INFO L93 Difference]: Finished difference Result 5073 states and 7015 transitions. [2022-07-19 22:46:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 22:46:13,963 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 112 [2022-07-19 22:46:13,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:46:13,977 INFO L225 Difference]: With dead ends: 5073 [2022-07-19 22:46:13,977 INFO L226 Difference]: Without dead ends: 2558 [2022-07-19 22:46:13,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 133 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2022-07-19 22:46:13,989 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2 mSDsluCounter, 30524 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 33593 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:46:13,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 33593 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1484 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-07-19 22:46:13,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2022-07-19 22:46:14,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2556. [2022-07-19 22:46:14,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 1767 states have (on average 1.2971137521222411) internal successors, (2292), 1806 states have internal predecessors, (2292), 621 states have call successors, (621), 168 states have call predecessors, (621), 167 states have return successors, (620), 603 states have call predecessors, (620), 614 states have call successors, (620) [2022-07-19 22:46:14,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 3533 transitions. [2022-07-19 22:46:14,111 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 3533 transitions. Word has length 112 [2022-07-19 22:46:14,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:46:14,111 INFO L495 AbstractCegarLoop]: Abstraction has 2556 states and 3533 transitions. [2022-07-19 22:46:14,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.9) internal successors, (79), 9 states have internal predecessors, (79), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-19 22:46:14,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 3533 transitions. [2022-07-19 22:46:14,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-19 22:46:14,117 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:46:14,117 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:46:14,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-19 22:46:14,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-19 22:46:14,320 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:46:14,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:46:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1004750139, now seen corresponding path program 1 times [2022-07-19 22:46:14,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:46:14,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174306672] [2022-07-19 22:46:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:14,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:46:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:46:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 22:46:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 22:46:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-19 22:46:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:46:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-19 22:46:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 22:46:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-19 22:46:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:46:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 22:46:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-19 22:46:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-19 22:46:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 22:46:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 22:46:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:15,400 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-19 22:46:15,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:46:15,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174306672] [2022-07-19 22:46:15,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174306672] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:46:15,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266301000] [2022-07-19 22:46:15,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:15,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:46:15,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:46:15,402 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:46:15,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 22:46:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:16,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 2876 conjuncts, 71 conjunts are in the unsatisfiable core [2022-07-19 22:46:16,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:46:17,471 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-19 22:46:17,471 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:46:17,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266301000] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:46:17,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:46:17,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [20] total 31 [2022-07-19 22:46:17,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12521971] [2022-07-19 22:46:17,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:46:17,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-19 22:46:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:46:17,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-19 22:46:17,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=846, Unknown=0, NotChecked=0, Total=930 [2022-07-19 22:46:17,473 INFO L87 Difference]: Start difference. First operand 2556 states and 3533 transitions. Second operand has 18 states, 15 states have (on average 5.666666666666667) internal successors, (85), 14 states have internal predecessors, (85), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2022-07-19 22:46:19,852 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 [] [2022-07-19 22:46:21,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:46:21,455 INFO L93 Difference]: Finished difference Result 5070 states and 7015 transitions. [2022-07-19 22:46:21,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 22:46:21,456 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 5.666666666666667) internal successors, (85), 14 states have internal predecessors, (85), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 118 [2022-07-19 22:46:21,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:46:21,465 INFO L225 Difference]: With dead ends: 5070 [2022-07-19 22:46:21,465 INFO L226 Difference]: Without dead ends: 2553 [2022-07-19 22:46:21,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=185, Invalid=1455, Unknown=0, NotChecked=0, Total=1640 [2022-07-19 22:46:21,474 INFO L413 NwaCegarLoop]: 3074 mSDtfsCounter, 14 mSDsluCounter, 39756 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 42830 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-19 22:46:21,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 42830 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1988 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-07-19 22:46:21,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2553 states. [2022-07-19 22:46:21,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2553 to 2544. [2022-07-19 22:46:21,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 1759 states have (on average 1.297896532120523) internal successors, (2283), 1798 states have internal predecessors, (2283), 619 states have call successors, (619), 167 states have call predecessors, (619), 165 states have return successors, (612), 600 states have call predecessors, (612), 612 states have call successors, (612) [2022-07-19 22:46:21,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3514 transitions. [2022-07-19 22:46:21,570 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3514 transitions. Word has length 118 [2022-07-19 22:46:21,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:46:21,570 INFO L495 AbstractCegarLoop]: Abstraction has 2544 states and 3514 transitions. [2022-07-19 22:46:21,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 5.666666666666667) internal successors, (85), 14 states have internal predecessors, (85), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2022-07-19 22:46:21,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3514 transitions. [2022-07-19 22:46:21,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-19 22:46:21,574 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:46:21,575 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:46:21,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 22:46:21,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-19 22:46:21,791 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:46:21,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:46:21,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1953421011, now seen corresponding path program 1 times [2022-07-19 22:46:21,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:46:21,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675603830] [2022-07-19 22:46:21,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:21,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:46:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:46:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 22:46:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 22:46:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 22:46:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:46:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 22:46:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 22:46:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-19 22:46:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:46:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-19 22:46:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-19 22:46:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-19 22:46:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-19 22:46:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-19 22:46:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:23,685 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-19 22:46:23,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:46:23,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675603830] [2022-07-19 22:46:23,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675603830] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:46:23,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073918158] [2022-07-19 22:46:23,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:23,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:46:23,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:46:23,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:46:23,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 22:46:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:46:24,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 3305 conjuncts, 35 conjunts are in the unsatisfiable core [2022-07-19 22:46:24,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:46:24,795 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-19 22:46:24,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:46:24,940 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-19 22:46:24,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073918158] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 22:46:24,940 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 22:46:24,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 6] total 13 [2022-07-19 22:46:24,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122283475] [2022-07-19 22:46:24,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 22:46:24,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 22:46:24,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:46:24,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 22:46:24,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-07-19 22:46:24,945 INFO L87 Difference]: Start difference. First operand 2544 states and 3514 transitions. Second operand has 13 states, 10 states have (on average 10.6) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-19 22:46:28,980 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 [] [2022-07-19 22:46:31,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:46:33,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:46:35,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:46:37,171 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:46:39,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:46:40,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 22:46:48,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:46:48,584 INFO L93 Difference]: Finished difference Result 5312 states and 7370 transitions. [2022-07-19 22:46:48,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 22:46:48,584 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 10.6) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 116 [2022-07-19 22:46:48,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:46:48,596 INFO L225 Difference]: With dead ends: 5312 [2022-07-19 22:46:48,596 INFO L226 Difference]: Without dead ends: 2780 [2022-07-19 22:46:48,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-07-19 22:46:48,605 INFO L413 NwaCegarLoop]: 2866 mSDtfsCounter, 2166 mSDsluCounter, 15036 mSDsCounter, 0 mSdLazyCounter, 14000 mSolverCounterSat, 1703 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 17902 SdHoareTripleChecker+Invalid, 15709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1703 IncrementalHoareTripleChecker+Valid, 14000 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:46:48,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 17902 Invalid, 15709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1703 Valid, 14000 Invalid, 6 Unknown, 0 Unchecked, 23.3s Time] [2022-07-19 22:46:48,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2022-07-19 22:46:48,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2535. [2022-07-19 22:46:48,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 1754 states have (on average 1.297605473204105) internal successors, (2276), 1793 states have internal predecessors, (2276), 616 states have call successors, (616), 166 states have call predecessors, (616), 164 states have return successors, (609), 597 states have call predecessors, (609), 609 states have call successors, (609) [2022-07-19 22:46:48,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 3501 transitions. [2022-07-19 22:46:48,714 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 3501 transitions. Word has length 116 [2022-07-19 22:46:48,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:46:48,715 INFO L495 AbstractCegarLoop]: Abstraction has 2535 states and 3501 transitions. [2022-07-19 22:46:48,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 10.6) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-07-19 22:46:48,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 3501 transitions. [2022-07-19 22:46:48,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-19 22:46:48,719 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:46:48,720 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:46:48,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 22:46:48,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:46:48,948 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:46:48,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:46:48,948 INFO L85 PathProgramCache]: Analyzing trace with hash 174732758, now seen corresponding path program 1 times [2022-07-19 22:46:48,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:46:48,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927650069] [2022-07-19 22:46:48,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:46:48,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:46:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 22:46:50,316 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 22:46:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 22:46:51,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 22:46:51,442 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 22:46:51,443 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 22:46:51,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 22:46:51,446 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:46:51,449 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 22:46:51,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:46:51 BoogieIcfgContainer [2022-07-19 22:46:51,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 22:46:51,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 22:46:51,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 22:46:51,608 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 22:46:51,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:45:21" (3/4) ... [2022-07-19 22:46:51,610 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 22:46:51,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 22:46:51,611 INFO L158 Benchmark]: Toolchain (without parser) took 104675.20ms. Allocated memory was 107.0MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 71.0MB in the beginning and 608.5MB in the end (delta: -537.5MB). Peak memory consumption was 548.3MB. Max. memory is 16.1GB. [2022-07-19 22:46:51,612 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 22:46:51,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3455.18ms. Allocated memory was 107.0MB in the beginning and 197.1MB in the end (delta: 90.2MB). Free memory was 70.5MB in the beginning and 115.6MB in the end (delta: -45.0MB). Peak memory consumption was 94.6MB. Max. memory is 16.1GB. [2022-07-19 22:46:51,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 307.51ms. Allocated memory is still 197.1MB. Free memory was 115.6MB in the beginning and 72.5MB in the end (delta: 43.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-07-19 22:46:51,613 INFO L158 Benchmark]: Boogie Preprocessor took 411.92ms. Allocated memory was 197.1MB in the beginning and 312.5MB in the end (delta: 115.3MB). Free memory was 72.5MB in the beginning and 199.0MB in the end (delta: -126.5MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2022-07-19 22:46:51,613 INFO L158 Benchmark]: RCFGBuilder took 10796.69ms. Allocated memory was 312.5MB in the beginning and 597.7MB in the end (delta: 285.2MB). Free memory was 199.0MB in the beginning and 428.5MB in the end (delta: -229.5MB). Peak memory consumption was 324.0MB. Max. memory is 16.1GB. [2022-07-19 22:46:51,613 INFO L158 Benchmark]: TraceAbstraction took 89693.59ms. Allocated memory was 597.7MB in the beginning and 1.2GB in the end (delta: 595.6MB). Free memory was 427.5MB in the beginning and 608.5MB in the end (delta: -181.0MB). Peak memory consumption was 670.5MB. Max. memory is 16.1GB. [2022-07-19 22:46:51,614 INFO L158 Benchmark]: Witness Printer took 3.20ms. Allocated memory is still 1.2GB. Free memory is still 608.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 22:46:51,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory was 60.4MB in the beginning and 60.4MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3455.18ms. Allocated memory was 107.0MB in the beginning and 197.1MB in the end (delta: 90.2MB). Free memory was 70.5MB in the beginning and 115.6MB in the end (delta: -45.0MB). Peak memory consumption was 94.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 307.51ms. Allocated memory is still 197.1MB. Free memory was 115.6MB in the beginning and 72.5MB in the end (delta: 43.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 411.92ms. Allocated memory was 197.1MB in the beginning and 312.5MB in the end (delta: 115.3MB). Free memory was 72.5MB in the beginning and 199.0MB in the end (delta: -126.5MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. * RCFGBuilder took 10796.69ms. Allocated memory was 312.5MB in the beginning and 597.7MB in the end (delta: 285.2MB). Free memory was 199.0MB in the beginning and 428.5MB in the end (delta: -229.5MB). Peak memory consumption was 324.0MB. Max. memory is 16.1GB. * TraceAbstraction took 89693.59ms. Allocated memory was 597.7MB in the beginning and 1.2GB in the end (delta: 595.6MB). Free memory was 427.5MB in the beginning and 608.5MB in the end (delta: -181.0MB). Peak memory consumption was 670.5MB. Max. memory is 16.1GB. * Witness Printer took 3.20ms. Allocated memory is still 1.2GB. Free memory is still 608.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 13668]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of __builtin_object_size at line 7404, overapproximation of large string literal at line 12845, overapproximation of bitwiseAnd at line 12077. Possible FailurePath: [L7687] static unsigned int vhost_zcopy_mask ; [L10792] static struct target_fabric_configfs *tcm_vhost_fabric_configfs ; [L10793] static struct workqueue_struct *tcm_vhost_workqueue ; [L10794-L10797] static struct mutex tcm_vhost_mutex = {{1}, {{{{{0U}}, 3735899821U, 4294967295U, 0xffffffffffffffffUL, {0, {0, 0}, "tcm_vhost_mutex.wait_lock", 0, 0UL}}}}, {& tcm_vhost_mutex.wait_list, & tcm_vhost_mutex.wait_list}, 0, 0, (void *)(& tcm_vhost_mutex), {0, {0, 0}, "tcm_vhost_mutex", 0, 0UL}}; [L10798] static struct list_head tcm_vhost_list = {& tcm_vhost_list, & tcm_vhost_list}; [L12183-L12186] static struct file_operations const vhost_scsi_fops = {& __this_module, & noop_llseek, 0, 0, 0, 0, 0, 0, & vhost_scsi_ioctl, & vhost_scsi_compat_ioctl, 0, & vhost_scsi_open, 0, & vhost_scsi_release, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L12187-L12188] static struct miscdevice vhost_scsi_misc = {255, "vhost-scsi", & vhost_scsi_fops, {0, 0}, 0, 0, 0, (unsigned short)0}; [L12540] static struct target_fabric_tpg_attribute tcm_vhost_tpg_nexus = {{"nexus", & __this_module, 420U}, & tcm_vhost_tpg_show_nexus, & tcm_vhost_tpg_store_nexus}; [L12541] static struct configfs_attribute *tcm_vhost_tpg_attrs[2U] = { & tcm_vhost_tpg_nexus.attr, 0}; [L12732] static struct target_fabric_wwn_attribute tcm_vhost_wwn_version = {{"version", & __this_module, 292U}, & tcm_vhost_wwn_show_attr_version, 0}; [L12733] static struct configfs_attribute *tcm_vhost_wwn_attrs[2U] = { & tcm_vhost_wwn_version.attr, 0}; [L12734-L12745] static struct target_core_fabric_ops tcm_vhost_ops = {0, & tcm_vhost_get_fabric_name, & tcm_vhost_get_fabric_proto_ident, & tcm_vhost_get_fabric_wwn, & tcm_vhost_get_tag, & tcm_vhost_get_default_depth, & tcm_vhost_get_pr_transport_id, & tcm_vhost_get_pr_transport_id_len, & tcm_vhost_parse_pr_out_transport_id, & tcm_vhost_check_true, & tcm_vhost_check_true, & tcm_vhost_check_false, & tcm_vhost_check_false, 0, & tcm_vhost_alloc_fabric_acl, & tcm_vhost_release_fabric_acl, & tcm_vhost_tpg_get_inst_index, 0, & tcm_vhost_release_cmd, 0, & tcm_vhost_shutdown_session, & tcm_vhost_close_session, & tcm_vhost_sess_get_index, 0, & tcm_vhost_write_pending, & tcm_vhost_write_pending_status, & tcm_vhost_set_default_node_attrs, & tcm_vhost_get_task_tag, & tcm_vhost_get_cmd_state, & tcm_vhost_queue_data_in, & tcm_vhost_queue_status, & tcm_vhost_queue_tm_rsp, & tcm_vhost_make_tport, & tcm_vhost_drop_tport, & tcm_vhost_make_tpg, & tcm_vhost_drop_tpg, & tcm_vhost_port_link, & tcm_vhost_port_unlink, 0, 0, & tcm_vhost_make_nodeacl, & tcm_vhost_drop_nodeacl}; [L12885] int LDV_IN_INTERRUPT ; [L13678] static int ldv_mutex_cred_guard_mutex ; [L13785] static int ldv_mutex_lock ; [L13892] static int ldv_mutex_mtx ; [L13999] static int ldv_mutex_mutex ; [L14106] static int ldv_mutex_tcm_vhost_mutex ; [L14213] static int ldv_mutex_tv_tpg_mutex ; VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=0, ldv_mutex_cred_guard_mutex=0, ldv_mutex_lock=0, ldv_mutex_mtx=0, ldv_mutex_mutex=0, ldv_mutex_tcm_vhost_mutex=0, ldv_mutex_tv_tpg_mutex=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={0:0}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12888] struct inode *var_group1 ; [L12889] struct file *var_group2 ; [L12890] unsigned int var_vhost_scsi_ioctl_44_p1 ; [L12891] unsigned long var_vhost_scsi_ioctl_44_p2 ; [L12892] unsigned int var_vhost_scsi_compat_ioctl_45_p1 ; [L12893] unsigned long var_vhost_scsi_compat_ioctl_45_p2 ; [L12894] int res_vhost_scsi_open_39 ; [L12895] struct se_portal_group *var_group3 ; [L12896] struct se_node_acl *var_group4 ; [L12897] struct t10_pr_registration *var_tcm_vhost_get_pr_transport_id_7_p2 ; [L12898] int *var_tcm_vhost_get_pr_transport_id_7_p3 ; [L12899] unsigned char *var_tcm_vhost_get_pr_transport_id_7_p4 ; [L12900] struct t10_pr_registration *var_tcm_vhost_get_pr_transport_id_len_8_p2 ; [L12901] int *var_tcm_vhost_get_pr_transport_id_len_8_p3 ; [L12902] char const *var_tcm_vhost_parse_pr_out_transport_id_9_p1 ; [L12903] u32 *var_tcm_vhost_parse_pr_out_transport_id_9_p2 ; [L12904] char **var_tcm_vhost_parse_pr_out_transport_id_9_p3 ; [L12905] struct se_cmd *var_group5 ; [L12906] struct se_session *var_group6 ; [L12907] struct target_fabric_configfs *var_group7 ; [L12908] struct config_group *var_group8 ; [L12909] char const *var_tcm_vhost_make_tport_59_p2 ; [L12910] struct se_wwn *var_group9 ; [L12911] char const *var_tcm_vhost_make_tpg_57_p2 ; [L12912] struct se_lun *var_group10 ; [L12913] char const *var_tcm_vhost_make_nodeacl_51_p2 ; [L12914] int ldv_s_vhost_scsi_fops_file_operations ; [L12915] int tmp ; [L12916] int tmp___0 ; [L12917] int tmp___1 ; [L12919] ldv_s_vhost_scsi_fops_file_operations = 0 [L12920] LDV_IN_INTERRUPT = 1 [L12921] CALL ldv_initialize() [L14323] ldv_mutex_cred_guard_mutex = 1 [L14324] ldv_mutex_lock = 1 [L14325] ldv_mutex_mtx = 1 [L14326] ldv_mutex_mutex = 1 [L14327] ldv_mutex_tcm_vhost_mutex = 1 [L14328] ldv_mutex_tv_tpg_mutex = 1 VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={0:0}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12921] RET ldv_initialize() [L12922] FCALL ldv_handler_precall() VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={0:0}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12923] CALL, EXPR tcm_vhost_init() [L12839] int ret ; [L12840] struct lock_class_key __key ; [L12841] char const *__lock_name ; [L12842] struct workqueue_struct *tmp ; [L12844] ret = -12 [L12845] __lock_name = "tcm_vhost" [L12846] tmp = __alloc_workqueue_key("tcm_vhost", 0U, 0, & __key, __lock_name) [L12847] tcm_vhost_workqueue = tmp VAL [__alloc_workqueue_key("tcm_vhost", 0U, 0, & __key, __lock_name)={366:-365}, __key={368:0}, __lock_name={354:0}, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=-12, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp={366:-365}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12848] COND FALSE !((unsigned long )tcm_vhost_workqueue == (unsigned long )((struct workqueue_struct *)0)) [L12852] CALL, EXPR vhost_scsi_register() [L12191] int tmp ; [L12193] CALL, EXPR misc_register(& vhost_scsi_misc) [L14561] return __VERIFIER_nondet_int(); [L12193] RET, EXPR misc_register(& vhost_scsi_misc) [L12193] tmp = misc_register(& vhost_scsi_misc) [L12194] return (tmp); VAL [\result=0, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12852] RET, EXPR vhost_scsi_register() [L12852] ret = vhost_scsi_register() [L12853] COND FALSE !(ret < 0) [L12857] CALL, EXPR tcm_vhost_register_configfs() [L12748] struct target_fabric_configfs *fabric ; [L12749] int ret ; [L12750] struct _ddebug descriptor ; [L12751] struct new_utsname *tmp ; [L12752] struct new_utsname *tmp___0 ; [L12753] long tmp___1 ; [L12754] long tmp___2 ; [L12755] long tmp___3 ; [L12756] struct _ddebug descriptor___0 ; [L12757] long tmp___4 ; [L12759] descriptor.modname = "tcm_vhost" [L12760] descriptor.function = "tcm_vhost_register_configfs" [L12761] descriptor.filename = "/work/vladimir/UFO/Work/test/work/current--X--drivers/vhost/tcm_vhost.ko--X--defaultlinux-3.7.3--X--32_7a--X--ufo/linux-3.7.3/csd_deg_dscv/12/dscv_tempdir/dscv/ri/32_7a/drivers/vhost/tcm_vhost.c.prepared" [L12762] descriptor.format = "TCM_VHOST fabric module %s on %s/%s on 3.7.3\n" [L12763] descriptor.lineno = 1561U [L12764] descriptor.flags = 0U [L12765] EXPR descriptor.flags VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor.flags=0, descriptor___0={370:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12765] CALL, EXPR ldv__builtin_expect((long )descriptor.flags & 1L, 0L) VAL [\old(c)=0, \old(exp)=0, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13675] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __this_module={18446744073709551633:18446744073709551622}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12765] RET, EXPR ldv__builtin_expect((long )descriptor.flags & 1L, 0L) VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor.flags=0, descriptor___0={370:0}, ldv__builtin_expect((long )descriptor.flags & 1L, 0L)=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12765] tmp___1 = ldv__builtin_expect((long )descriptor.flags & 1L, 0L) [L12766] COND FALSE !(tmp___1 != 0L) VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor___0={370:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp___1=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12773] CALL, EXPR target_fabric_configfs_init(& __this_module, "vhost") [L14636] CALL, EXPR ldv_malloc(sizeof(struct target_fabric_configfs)) VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7220] COND FALSE !(__VERIFIER_nondet_int()) [L7225] return ((void *)0); VAL [\old(size)=1300, \result={0:0}, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, size=1300, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14636] RET, EXPR ldv_malloc(sizeof(struct target_fabric_configfs)) VAL [__this_module={18446744073709551633:18446744073709551622}, arg0={18446744073709551633:18446744073709551622}, arg0={18446744073709551633:18446744073709551622}, arg1={341:0}, arg1={341:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct target_fabric_configfs))={0:0}, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14636] return ldv_malloc(sizeof(struct target_fabric_configfs)); [L12773] RET, EXPR target_fabric_configfs_init(& __this_module, "vhost") [L12773] fabric = target_fabric_configfs_init(& __this_module, "vhost") [L12774] CALL, EXPR IS_ERR((void const *)fabric) VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ptr={0:0}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L6795] long tmp ; VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ptr={0:0}, ptr={0:0}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L6797] CALL, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [\old(c)=0, \old(exp)=0, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13675] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __this_module={18446744073709551633:18446744073709551622}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L6797] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [__this_module={18446744073709551633:18446744073709551622}, ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L)=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ptr={0:0}, ptr={0:0}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L6797] tmp = ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) [L6798] return (tmp); VAL [\result=0, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ptr={0:0}, ptr={0:0}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12774] RET, EXPR IS_ERR((void const *)fabric) VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor___0={370:0}, fabric={0:0}, IS_ERR((void const *)fabric)=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp___1=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12774] tmp___3 = IS_ERR((void const *)fabric) [L12775] COND FALSE !(tmp___3 != 0L) [L12781] fabric->tf_ops = tcm_vhost_ops [L12782] fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = (struct configfs_attribute **)(& tcm_vhost_wwn_attrs) [L12783] fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = (struct configfs_attribute **)(& tcm_vhost_tpg_attrs) [L12784] fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = 0 [L12785] fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = 0 [L12786] fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = 0 [L12787] fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = 0 [L12788] fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = 0 [L12789] fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = 0 [L12790] fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = 0 [L12791] CALL, EXPR target_fabric_configfs_register(fabric) [L14640] return __VERIFIER_nondet_int(); [L12791] RET, EXPR target_fabric_configfs_register(fabric) [L12791] ret = target_fabric_configfs_register(fabric) [L12792] COND FALSE !(ret < 0) [L12797] tcm_vhost_fabric_configfs = fabric [L12798] descriptor___0.modname = "tcm_vhost" [L12799] descriptor___0.function = "tcm_vhost_register_configfs" [L12800] descriptor___0.filename = "/work/vladimir/UFO/Work/test/work/current--X--drivers/vhost/tcm_vhost.ko--X--defaultlinux-3.7.3--X--32_7a--X--ufo/linux-3.7.3/csd_deg_dscv/12/dscv_tempdir/dscv/ri/32_7a/drivers/vhost/tcm_vhost.c.prepared" [L12801] descriptor___0.format = "TCM_VHOST[0] - Set fabric -> tcm_vhost_fabric_configfs\n" [L12802] descriptor___0.lineno = 1599U [L12803] descriptor___0.flags = 0U [L12804] EXPR descriptor___0.flags VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor___0={370:0}, descriptor___0.flags=0, fabric={0:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp___1=0, tmp___3=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12804] CALL, EXPR ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) VAL [\old(c)=0, \old(exp)=0, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13675] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __this_module={18446744073709551633:18446744073709551622}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12804] RET, EXPR ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor___0={370:0}, descriptor___0.flags=0, fabric={0:0}, ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L)=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp___1=0, tmp___3=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12804] tmp___4 = ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) [L12805] COND FALSE !(tmp___4 != 0L) VAL [__this_module={18446744073709551633:18446744073709551622}, descriptor={367:0}, descriptor___0={370:0}, fabric={0:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp___1=0, tmp___3=0, tmp___4=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12809] return (0); [L12809] return (0); [L12809] return (0); VAL [\result=0, __this_module={18446744073709551633:18446744073709551622}, fabric={0:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp___1=0, tmp___3=0, tmp___4=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12857] RET, EXPR tcm_vhost_register_configfs() [L12857] ret = tcm_vhost_register_configfs() [L12858] COND FALSE !(ret < 0) [L12862] return (0); [L12862] return (0); VAL [\result=0, __alloc_workqueue_key("tcm_vhost", 0U, 0, & __key, __lock_name)={366:-365}, __lock_name={354:0}, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp={366:-365}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12923] RET, EXPR tcm_vhost_init() [L12923] tmp = tcm_vhost_init() [L12924] COND FALSE !(tmp != 0) VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13102] tmp___1 = __VERIFIER_nondet_int() [L13103] COND TRUE tmp___1 != 0 || ldv_s_vhost_scsi_fops_file_operations != 0 VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, tmp___1=1, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12930] tmp___0 = __VERIFIER_nondet_int() [L12932] case 0: [L12945] case 1: [L12953] case 2: [L12957] case 3: VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, tmp___0=3, tmp___1=1, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12958] FCALL ldv_handler_precall() VAL [__this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, tmp___0=3, tmp___1=1, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12959] CALL vhost_scsi_compat_ioctl(var_group2, var_vhost_scsi_compat_ioctl_45_p1, var_vhost_scsi_compat_ioctl_45_p2) [L12175] void *tmp ; [L12176] long tmp___0 ; [L12178] CALL, EXPR compat_ptr((compat_uptr_t )arg) [L7259] return ((void *)((unsigned long )uptr)); VAL [\old(uptr)=4294967294, \result={0:4294967294}, __this_module={18446744073709551633:18446744073709551622}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, uptr=4294967294, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12178] RET, EXPR compat_ptr((compat_uptr_t )arg) [L12178] tmp = compat_ptr((compat_uptr_t )arg) [L12179] CALL vhost_scsi_ioctl(f, ioctl, (unsigned long )tmp) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12095] struct vhost_scsi *vs ; [L12096] struct vhost_scsi_target backend ; [L12097] void *argp ; [L12098] u64 *featurep ; [L12099] u64 features ; [L12100] int r ; [L12101] int abi_version ; [L12102] unsigned long tmp ; [L12103] int tmp___0 ; [L12104] unsigned long tmp___1 ; [L12105] int tmp___2 ; [L12106] int tmp___3 ; [L12107] int tmp___4 ; [L12108] unsigned long tmp___5 ; [L12109] int tmp___6 ; [L12110] long tmp___7 ; [L12112] EXPR f->private_data [L12112] vs = (struct vhost_scsi *)f->private_data [L12113] argp = (void *)arg [L12114] featurep = (u64 *)argp [L12115] abi_version = 0 [L12117] case 1088991040U: [L12129] case 1088991041U: [L12141] case 1074048834U: [L12148] case 2148052736U: [L12156] case 1074310912U: VAL [\old(arg)=4294967294, \old(bit = (int )write_page & 7)=18446744073709551661, \old(ioctl)=1074310912, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, abi_version={369:0}, arg=4294967294, argp={0:4294967294}, backend={373:0}, bit = (int )write_page & 7=18446744073709551661, f={18446744073709551644:-286}, f={18446744073709551644:-286}, featurep={0:4294967294}, features={371:0}, ioctl=1074310912, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0, vs={18446744073709551675:374}] [L12157] CALL, EXPR copy_from_user((void *)(& features), (void const *)featurep, 8UL) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7397] int sz ; [L7398] unsigned long tmp ; [L7399] int __ret_warn_on ; [L7400] long tmp___0 ; [L7401] long tmp___1 ; [L7402] long tmp___2 ; [L7404] tmp = __builtin_object_size((void const *)to, 0) [L7405] sz = (int )tmp VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, from={0:4294967294}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=4294967295, to={371:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7406] FCALL might_fault() VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, from={0:4294967294}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=4294967295, to={371:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7407] CALL, EXPR ldv__builtin_expect(sz == -1, 1L) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(c)=1, \old(exp)=1, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13675] return (exp); VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(c)=1, \old(exp)=1, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, \result=1, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, c=1, exp=1, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7407] RET, EXPR ldv__builtin_expect(sz == -1, 1L) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, from={0:4294967294}, ldv__builtin_expect(sz == -1, 1L)=1, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=4294967295, to={371:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7407] tmp___1 = ldv__builtin_expect(sz == -1, 1L) [L7408] COND TRUE tmp___1 != 0L VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, from={0:4294967294}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=4294967295, tmp___1=1, to={371:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7409] CALL, EXPR _copy_from_user(to, from, (unsigned int )n) VAL [\old(arg2)=8, \old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, arg0={371:0}, arg1={0:4294967294}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14395] return __VERIFIER_nondet_ulong(); [L7409] RET, EXPR _copy_from_user(to, from, (unsigned int )n) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, _copy_from_user(to, from, (unsigned int )n)=18446744073709551616, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, from={0:4294967294}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=4294967295, tmp___1=1, to={371:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L7409] n = _copy_from_user(to, from, (unsigned int )n) [L7425] return (n); VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, \result=18446744073709551616, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, from={0:4294967294}, from={0:4294967294}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=18446744073709551616, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=4294967295, tmp___1=1, to={371:0}, to={371:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12157] RET, EXPR copy_from_user((void *)(& features), (void const *)featurep, 8UL) VAL [\old(arg)=4294967294, \old(bit = (int )write_page & 7)=18446744073709551661, \old(ioctl)=1074310912, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, abi_version={369:0}, arg=4294967294, argp={0:4294967294}, backend={373:0}, bit = (int )write_page & 7=18446744073709551661, copy_from_user((void *)(& features), (void const *)featurep, 8UL)=18446744073709551616, f={18446744073709551644:-286}, f={18446744073709551644:-286}, featurep={0:4294967294}, features={371:0}, ioctl=1074310912, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0, vs={18446744073709551675:374}] [L12157] tmp___5 = copy_from_user((void *)(& features), (void const *)featurep, 8UL) [L12158] COND FALSE !(tmp___5 != 0UL) [L12162] EXPR \read(features) [L12162] CALL vhost_scsi_set_features(vs, features) [L12070] int tmp ; VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(features)=67, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, features=67, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0, vs={18446744073709551675:374}, vs={18446744073709551675:374}] [L12072] COND FALSE !((features & 0xffffffffcaffffffULL) != 0ULL) [L12076] CALL ldv_mutex_lock_41(& vs->dev.mutex) [L13443] CALL ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={18446744073709551675:398}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14037] COND TRUE ldv_mutex_mutex == 1 VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={18446744073709551675:398}, lock={18446744073709551675:398}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14041] ldv_mutex_mutex = 2 VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={18446744073709551675:398}, lock={18446744073709551675:398}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13443] RET ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, ldv_func_arg1={18446744073709551675:398}, ldv_func_arg1={18446744073709551675:398}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13444] FCALL mutex_lock(ldv_func_arg1) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, ldv_func_arg1={18446744073709551675:398}, ldv_func_arg1={18446744073709551675:398}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L12076] RET ldv_mutex_lock_41(& vs->dev.mutex) [L12077] COND TRUE (features & 67108864ULL) != 0ULL [L12078] CALL vhost_log_access_ok(& vs->dev) [L8496] struct vhost_memory *mp ; [L8497] bool __warned ; [L8498] int tmp ; [L8499] int tmp___0 ; [L8500] int tmp___1 ; VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, dev={18446744073709551675:382}, dev={18446744073709551675:382}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L8502] CALL, EXPR debug_lockdep_rcu_enabled() VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14447] return __VERIFIER_nondet_int(); [L8502] RET, EXPR debug_lockdep_rcu_enabled() VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, debug_lockdep_rcu_enabled()=0, dev={18446744073709551675:382}, dev={18446744073709551675:382}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L8502] tmp = debug_lockdep_rcu_enabled() [L8503] COND FALSE !(tmp != 0 && ! __warned) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, __warned=1, bit = (int )write_page & 7=18446744073709551661, dev={18446744073709551675:382}, dev={18446744073709551675:382}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, tmp=0, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L8513] EXPR dev->memory [L8513] mp = dev->memory [L8514] CALL memory_access_ok(dev, mp, 1) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L8418] int i ; [L8419] int ok ; [L8421] i = 0 VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(log_all)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, d={18446744073709551675:382}, d={18446744073709551675:382}, i=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, log_all=1, mem={18446744073709551660:18446744073709551646}, mem={18446744073709551660:18446744073709551646}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L8437] EXPR d->nvqs VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(log_all)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, d={18446744073709551675:382}, d={18446744073709551675:382}, d->nvqs=365, i=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, log_all=1, mem={18446744073709551660:18446744073709551646}, mem={18446744073709551660:18446744073709551646}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L8437] COND TRUE d->nvqs > i [L8424] EXPR d->vqs [L8424] CALL ldv_mutex_lock_12(& (d->vqs + (unsigned long )i)->mutex) [L13211] CALL ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={18446744073709551656:-3}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14037] COND FALSE !(ldv_mutex_mutex == 1) VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={18446744073709551656:-3}, lock={18446744073709551656:-3}, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L14039] CALL ldv_error() VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] [L13668] reach_error() VAL [\old(bit = (int )write_page & 7)=18446744073709551661, \old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(offset = (unsigned int )((long )ptr) & 4095U)=18446744073709551650, \old(page_link = sg->page_link & 3UL)=18446744073709551673, __this_module={18446744073709551633:18446744073709551622}, bit = (int )write_page & 7=18446744073709551661, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, offset = (unsigned int )((long )ptr) & 4095U=18446744073709551650, page_link = sg->page_link & 3UL=18446744073709551673, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={357:0}, tcm_vhost_mutex={356:0}, tcm_vhost_ops={364:0}, tcm_vhost_tpg_attrs={361:0}, tcm_vhost_tpg_nexus={360:0}, tcm_vhost_workqueue={366:-365}, tcm_vhost_wwn_attrs={363:0}, tcm_vhost_wwn_version={362:0}, vhost_scsi_fops={358:0}, vhost_scsi_misc={359:0}, vhost_zcopy_mask=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 115 procedures, 2457 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 89.5s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 73.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 29876 SdHoareTripleChecker+Valid, 69.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28504 mSDsluCounter, 157264 SdHoareTripleChecker+Invalid, 64.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111764 mSDsCounter, 5981 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36210 IncrementalHoareTripleChecker+Invalid, 42209 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5981 mSolverCounterUnsat, 45500 mSDtfsCounter, 36210 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 740 GetRequests, 630 SyntacticMatches, 5 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3371occurred in iteration=6, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 998 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 5.5s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 1315 NumberOfCodeBlocks, 1315 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1294 ConstructedInterpolants, 0 QuantifiedInterpolants, 2281 SizeOfPredicates, 38 NumberOfNonLiveVariables, 8997 ConjunctsInSsa, 147 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 135/145 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 [2022-07-19 22:46:51,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-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 3d776a54fbebbd358d59ab0126298feae1e40360b6fb5e6158cd54ba5ef877f7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 22:46:53,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 22:46:53,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 22:46:53,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 22:46:53,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 22:46:53,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 22:46:53,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 22:46:53,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 22:46:53,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 22:46:53,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 22:46:53,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 22:46:53,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 22:46:53,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 22:46:53,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 22:46:53,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 22:46:53,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 22:46:53,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 22:46:53,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 22:46:53,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 22:46:53,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 22:46:53,653 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 22:46:53,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 22:46:53,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 22:46:53,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 22:46:53,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 22:46:53,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 22:46:53,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 22:46:53,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 22:46:53,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 22:46:53,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 22:46:53,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 22:46:53,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 22:46:53,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 22:46:53,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 22:46:53,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 22:46:53,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 22:46:53,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 22:46:53,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 22:46:53,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 22:46:53,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 22:46:53,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 22:46:53,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 22:46:53,684 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-19 22:46:53,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 22:46:53,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 22:46:53,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 22:46:53,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 22:46:53,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 22:46:53,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 22:46:53,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 22:46:53,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 22:46:53,719 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 22:46:53,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 22:46:53,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 22:46:53,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 22:46:53,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 22:46:53,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 22:46:53,721 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 22:46:53,721 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 22:46:53,721 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 22:46:53,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 22:46:53,722 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 22:46:53,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 22:46:53,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 22:46:53,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 22:46:53,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 22:46:53,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:46:53,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 22:46:53,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 22:46:53,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 22:46:53,724 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 22:46:53,724 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 22:46:53,724 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 22:46:53,724 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 22:46:53,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 22:46:53,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 22:46:53,725 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d776a54fbebbd358d59ab0126298feae1e40360b6fb5e6158cd54ba5ef877f7 [2022-07-19 22:46:54,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 22:46:54,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 22:46:54,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 22:46:54,070 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 22:46:54,070 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 22:46:54,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-07-19 22:46:54,124 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9414f5f31/8381610b72ec4ef388a82fed3b58738a/FLAGdb35a329e [2022-07-19 22:46:55,002 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 22:46:55,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-07-19 22:46:55,063 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9414f5f31/8381610b72ec4ef388a82fed3b58738a/FLAGdb35a329e [2022-07-19 22:46:55,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9414f5f31/8381610b72ec4ef388a82fed3b58738a [2022-07-19 22:46:55,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 22:46:55,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 22:46:55,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 22:46:55,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 22:46:55,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 22:46:55,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:46:55" (1/1) ... [2022-07-19 22:46:55,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77ea22bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:46:55, skipping insertion in model container [2022-07-19 22:46:55,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:46:55" (1/1) ... [2022-07-19 22:46:55,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 22:46:55,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:46:57,608 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) [2022-07-19 22:46:57,613 INFO L158 Benchmark]: Toolchain (without parser) took 2148.04ms. Allocated memory was 60.8MB in the beginning and 94.4MB in the end (delta: 33.6MB). Free memory was 35.3MB in the beginning and 46.5MB in the end (delta: -11.2MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2022-07-19 22:46:57,614 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 22:46:57,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2144.84ms. Allocated memory was 60.8MB in the beginning and 94.4MB in the end (delta: 33.6MB). Free memory was 35.1MB in the beginning and 46.5MB in the end (delta: -11.4MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2022-07-19 22:46:57,615 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 60.8MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2144.84ms. Allocated memory was 60.8MB in the beginning and 94.4MB in the end (delta: 33.6MB). Free memory was 35.1MB in the beginning and 46.5MB in the end (delta: -11.4MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: ArithmeticException: BigInteger out of int range: java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range