./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.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 b01f589d408f6e26ea7a63733affb8614d3f46d7c24e67c8e520356eb639cf0d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:26:50,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:26:50,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:26:50,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:26:50,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:26:50,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:26:50,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:26:50,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:26:50,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:26:50,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:26:50,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:26:50,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:26:50,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:26:50,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:26:50,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:26:50,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:26:50,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:26:50,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:26:50,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:26:50,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:26:50,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:26:50,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:26:50,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:26:50,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:26:50,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:26:50,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:26:50,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:26:50,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:26:50,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:26:50,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:26:50,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:26:50,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:26:50,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:26:50,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:26:50,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:26:50,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:26:50,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:26:50,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:26:50,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:26:50,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:26:50,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:26:50,197 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:26:50,231 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:26:50,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:26:50,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:26:50,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:26:50,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:26:50,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:26:50,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:26:50,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:26:50,235 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:26:50,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:26:50,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:26:50,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:26:50,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:26:50,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:26:50,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:26:50,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:26:50,237 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:26:50,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:26:50,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:26:50,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:26:50,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:26:50,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:26:50,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:26:50,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:26:50,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:26:50,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:26:50,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:26:50,239 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:26:50,239 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:26:50,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:26:50,240 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b01f589d408f6e26ea7a63733affb8614d3f46d7c24e67c8e520356eb639cf0d [2021-12-28 04:26:50,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:26:50,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:26:50,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:26:50,602 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:26:50,602 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:26:50,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-28 04:26:50,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20c79f58/71218bfc925d41908eb104d9f6ccc6b9/FLAG0f4901ad4 [2021-12-28 04:26:51,575 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:26:51,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-28 04:26:51,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20c79f58/71218bfc925d41908eb104d9f6ccc6b9/FLAG0f4901ad4 [2021-12-28 04:26:52,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20c79f58/71218bfc925d41908eb104d9f6ccc6b9 [2021-12-28 04:26:52,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:26:52,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:26:52,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:26:52,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:26:52,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:26:52,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:26:52" (1/1) ... [2021-12-28 04:26:52,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8a8cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:52, skipping insertion in model container [2021-12-28 04:26:52,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:26:52" (1/1) ... [2021-12-28 04:26:52,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:26:52,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:26:55,336 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[472306,472319] [2021-12-28 04:26:55,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:26:55,435 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:26:56,108 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[472306,472319] [2021-12-28 04:26:56,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:26:56,213 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:26:56,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:56 WrapperNode [2021-12-28 04:26:56,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:26:56,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:26:56,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:26:56,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:26:56,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:56" (1/1) ... [2021-12-28 04:26:56,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:56" (1/1) ... [2021-12-28 04:26:56,547 INFO L137 Inliner]: procedures = 390, calls = 2687, calls flagged for inlining = 203, calls inlined = 169, statements flattened = 6741 [2021-12-28 04:26:56,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:26:56,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:26:56,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:26:56,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:26:56,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:56" (1/1) ... [2021-12-28 04:26:56,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:56" (1/1) ... [2021-12-28 04:26:56,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:56" (1/1) ... [2021-12-28 04:26:56,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:56" (1/1) ... [2021-12-28 04:26:56,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:56" (1/1) ... [2021-12-28 04:26:56,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:56" (1/1) ... [2021-12-28 04:26:56,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:56" (1/1) ... [2021-12-28 04:26:56,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:26:56,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:26:56,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:26:56,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:26:56,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:56" (1/1) ... [2021-12-28 04:26:56,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:26:56,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:26:56,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 04:26:56,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 04:26:56,975 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2021-12-28 04:26:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2021-12-28 04:26:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:26:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:26:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2021-12-28 04:26:56,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2021-12-28 04:26:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:26:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:26:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:26:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:26:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-28 04:26:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-28 04:26:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-28 04:26:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-28 04:26:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2021-12-28 04:26:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2021-12-28 04:26:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2021-12-28 04:26:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2021-12-28 04:26:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:26:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:26:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2021-12-28 04:26:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2021-12-28 04:26:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:26:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:26:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2021-12-28 04:26:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2021-12-28 04:26:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2021-12-28 04:26:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2021-12-28 04:26:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2021-12-28 04:26:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2021-12-28 04:26:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2021-12-28 04:26:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2021-12-28 04:26:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 04:26:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 04:26:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:26:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:26:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:26:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2021-12-28 04:26:57,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2021-12-28 04:26:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2021-12-28 04:26:57,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2021-12-28 04:26:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-28 04:26:57,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-28 04:26:57,031 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-28 04:26:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-28 04:26:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-28 04:26:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-28 04:26:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2021-12-28 04:26:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2021-12-28 04:26:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:26:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2021-12-28 04:26:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2021-12-28 04:26:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:26:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:26:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:26:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2021-12-28 04:26:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2021-12-28 04:26:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:26:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:26:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:26:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2021-12-28 04:26:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2021-12-28 04:26:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 04:26:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 04:26:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2021-12-28 04:26:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2021-12-28 04:26:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:26:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:26:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2021-12-28 04:26:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2021-12-28 04:26:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2021-12-28 04:26:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2021-12-28 04:26:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-28 04:26:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-28 04:26:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-28 04:26:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-28 04:26:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-12-28 04:26:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-12-28 04:26:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2021-12-28 04:26:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2021-12-28 04:26:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:26:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:26:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:26:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-28 04:26:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-28 04:26:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:26:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-28 04:26:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-28 04:26:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:26:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:26:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:26:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:26:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2021-12-28 04:26:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2021-12-28 04:26:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-28 04:26:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-28 04:26:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2021-12-28 04:26:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2021-12-28 04:26:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2021-12-28 04:26:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2021-12-28 04:26:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-28 04:26:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-28 04:26:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2021-12-28 04:26:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2021-12-28 04:26:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 04:26:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 04:26:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2021-12-28 04:26:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2021-12-28 04:26:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2021-12-28 04:26:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2021-12-28 04:26:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2021-12-28 04:26:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2021-12-28 04:26:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2021-12-28 04:26:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2021-12-28 04:26:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2021-12-28 04:26:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2021-12-28 04:26:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:26:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:26:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-28 04:26:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-28 04:26:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 04:26:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 04:26:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-28 04:26:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-28 04:26:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-28 04:26:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-28 04:26:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:26:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:26:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2021-12-28 04:26:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2021-12-28 04:26:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:26:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:26:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2021-12-28 04:26:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2021-12-28 04:26:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 04:26:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 04:26:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2021-12-28 04:26:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2021-12-28 04:26:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2021-12-28 04:26:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2021-12-28 04:26:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2021-12-28 04:26:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2021-12-28 04:26:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-28 04:26:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-28 04:26:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-28 04:26:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-28 04:26:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2021-12-28 04:26:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2021-12-28 04:26:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-28 04:26:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-28 04:26:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 04:26:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 04:26:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2021-12-28 04:26:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2021-12-28 04:26:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:26:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:26:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-28 04:26:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-28 04:26:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2021-12-28 04:26:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2021-12-28 04:26:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2021-12-28 04:26:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2021-12-28 04:26:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:26:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:26:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:26:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:26:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2021-12-28 04:26:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2021-12-28 04:26:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-28 04:26:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-28 04:26:57,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:26:57,053 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 04:26:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 04:26:57,054 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2021-12-28 04:26:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2021-12-28 04:26:57,054 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2021-12-28 04:26:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2021-12-28 04:26:57,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:26:57,054 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-28 04:26:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-28 04:26:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-28 04:26:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-28 04:26:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2021-12-28 04:26:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2021-12-28 04:26:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:26:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2021-12-28 04:26:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2021-12-28 04:26:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-28 04:26:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-28 04:26:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 04:26:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 04:26:57,057 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-28 04:26:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-28 04:26:57,057 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-28 04:26:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-28 04:26:57,057 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2021-12-28 04:26:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2021-12-28 04:26:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 04:26:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 04:26:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2021-12-28 04:26:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2021-12-28 04:26:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2021-12-28 04:26:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2021-12-28 04:26:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-28 04:26:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-28 04:26:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2021-12-28 04:26:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2021-12-28 04:26:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2021-12-28 04:26:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2021-12-28 04:26:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2021-12-28 04:26:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2021-12-28 04:26:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-28 04:26:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-28 04:26:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-12-28 04:26:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-12-28 04:26:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2021-12-28 04:26:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2021-12-28 04:26:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2021-12-28 04:26:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2021-12-28 04:26:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2021-12-28 04:26:57,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2021-12-28 04:26:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:26:57,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:26:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2021-12-28 04:26:57,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2021-12-28 04:26:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-28 04:26:57,061 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-28 04:26:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:26:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2021-12-28 04:26:57,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2021-12-28 04:26:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:26:57,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:26:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2021-12-28 04:26:57,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2021-12-28 04:26:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2021-12-28 04:26:57,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2021-12-28 04:26:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:26:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:26:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-28 04:26:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-28 04:26:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2021-12-28 04:26:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2021-12-28 04:26:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2021-12-28 04:26:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2021-12-28 04:26:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-28 04:26:57,064 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-28 04:26:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2021-12-28 04:26:57,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2021-12-28 04:26:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-28 04:26:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-28 04:26:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2021-12-28 04:26:57,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2021-12-28 04:26:57,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:26:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-28 04:26:57,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-28 04:26:57,069 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2021-12-28 04:26:57,069 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2021-12-28 04:26:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2021-12-28 04:26:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2021-12-28 04:26:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-28 04:26:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-28 04:26:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2021-12-28 04:26:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2021-12-28 04:26:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2021-12-28 04:26:57,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2021-12-28 04:26:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2021-12-28 04:26:57,075 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2021-12-28 04:26:58,073 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:26:58,076 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:26:58,312 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:27:04,633 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:27:04,658 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:27:04,659 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:27:04,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:27:04 BoogieIcfgContainer [2021-12-28 04:27:04,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:27:04,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:27:04,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:27:04,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:27:04,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:26:52" (1/3) ... [2021-12-28 04:27:04,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e71708a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:27:04, skipping insertion in model container [2021-12-28 04:27:04,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:26:56" (2/3) ... [2021-12-28 04:27:04,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e71708a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:27:04, skipping insertion in model container [2021-12-28 04:27:04,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:27:04" (3/3) ... [2021-12-28 04:27:04,673 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-28 04:27:04,678 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:27:04,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:27:04,738 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:27:04,746 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 04:27:04,747 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:27:04,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 2249 states, 1558 states have (on average 1.3286264441591784) internal successors, (2070), 1611 states have internal predecessors, (2070), 565 states have call successors, (565), 125 states have call predecessors, (565), 124 states have return successors, (559), 548 states have call predecessors, (559), 559 states have call successors, (559) [2021-12-28 04:27:04,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-28 04:27:04,822 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:04,822 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:27:04,823 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:04,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:04,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1434667982, now seen corresponding path program 1 times [2021-12-28 04:27:04,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:04,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300167780] [2021-12-28 04:27:04,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:04,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:05,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:05,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:05,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:05,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:27:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:05,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:05,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 04:27:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:05,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:05,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 04:27:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:05,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:05,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 04:27:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:05,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:05,726 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-28 04:27:05,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:05,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300167780] [2021-12-28 04:27:05,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300167780] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:05,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:05,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:27:05,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442424996] [2021-12-28 04:27:05,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:05,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:27:05,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:05,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:27:05,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:27:05,777 INFO L87 Difference]: Start difference. First operand has 2249 states, 1558 states have (on average 1.3286264441591784) internal successors, (2070), 1611 states have internal predecessors, (2070), 565 states have call successors, (565), 125 states have call predecessors, (565), 124 states have return successors, (559), 548 states have call predecessors, (559), 559 states have call successors, (559) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 04:27:08,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:14,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:27:14,496 INFO L93 Difference]: Finished difference Result 5245 states and 7862 transitions. [2021-12-28 04:27:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 04:27:14,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2021-12-28 04:27:14,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:27:14,538 INFO L225 Difference]: With dead ends: 5245 [2021-12-28 04:27:14,538 INFO L226 Difference]: Without dead ends: 2971 [2021-12-28 04:27:14,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:27:14,566 INFO L933 BasicCegarLoop]: 2897 mSDtfsCounter, 3498 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 2940 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3563 SdHoareTripleChecker+Valid, 4434 SdHoareTripleChecker+Invalid, 4450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2940 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:27:14,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3563 Valid, 4434 Invalid, 4450 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2940 Valid, 1509 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-12-28 04:27:14,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2021-12-28 04:27:14,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 2219. [2021-12-28 04:27:14,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 1537 states have (on average 1.3201040988939492) internal successors, (2029), 1583 states have internal predecessors, (2029), 558 states have call successors, (558), 124 states have call predecessors, (558), 123 states have return successors, (556), 545 states have call predecessors, (556), 556 states have call successors, (556) [2021-12-28 04:27:14,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3143 transitions. [2021-12-28 04:27:14,846 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3143 transitions. Word has length 79 [2021-12-28 04:27:14,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:27:14,848 INFO L470 AbstractCegarLoop]: Abstraction has 2219 states and 3143 transitions. [2021-12-28 04:27:14,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 04:27:14,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3143 transitions. [2021-12-28 04:27:14,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-28 04:27:14,859 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:14,860 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:27:14,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:27:14,861 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:14,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:14,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1906359156, now seen corresponding path program 1 times [2021-12-28 04:27:14,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:14,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453404591] [2021-12-28 04:27:14,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:14,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:15,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:15,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:15,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:27:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:15,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 04:27:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:15,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:15,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 04:27:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:15,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 04:27:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-28 04:27:15,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:15,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453404591] [2021-12-28 04:27:15,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453404591] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:15,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:15,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:27:15,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888501423] [2021-12-28 04:27:15,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:15,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:27:15,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:15,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:27:15,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:27:15,366 INFO L87 Difference]: Start difference. First operand 2219 states and 3143 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-28 04:27:19,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:22,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:31,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:34,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:27:34,142 INFO L93 Difference]: Finished difference Result 7646 states and 11254 transitions. [2021-12-28 04:27:34,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:27:34,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 79 [2021-12-28 04:27:34,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:27:34,182 INFO L225 Difference]: With dead ends: 7646 [2021-12-28 04:27:34,182 INFO L226 Difference]: Without dead ends: 5448 [2021-12-28 04:27:34,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:27:34,196 INFO L933 BasicCegarLoop]: 3188 mSDtfsCounter, 9144 mSDsluCounter, 3568 mSDsCounter, 0 mSdLazyCounter, 3703 mSolverCounterSat, 5967 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9447 SdHoareTripleChecker+Valid, 6756 SdHoareTripleChecker+Invalid, 9673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5967 IncrementalHoareTripleChecker+Valid, 3703 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:27:34,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9447 Valid, 6756 Invalid, 9673 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5967 Valid, 3703 Invalid, 3 Unknown, 0 Unchecked, 18.2s Time] [2021-12-28 04:27:34,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5448 states. [2021-12-28 04:27:34,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5448 to 3967. [2021-12-28 04:27:34,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3967 states, 2757 states have (on average 1.3173739571998548) internal successors, (3632), 2845 states have internal predecessors, (3632), 970 states have call successors, (970), 240 states have call predecessors, (970), 239 states have return successors, (967), 945 states have call predecessors, (967), 967 states have call successors, (967) [2021-12-28 04:27:34,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 5569 transitions. [2021-12-28 04:27:34,425 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 5569 transitions. Word has length 79 [2021-12-28 04:27:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:27:34,426 INFO L470 AbstractCegarLoop]: Abstraction has 3967 states and 5569 transitions. [2021-12-28 04:27:34,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-28 04:27:34,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 5569 transitions. [2021-12-28 04:27:34,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-28 04:27:34,442 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:27:34,442 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-28 04:27:34,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:27:34,443 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:27:34,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:27:34,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1136123505, now seen corresponding path program 1 times [2021-12-28 04:27:34,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:27:34,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902511663] [2021-12-28 04:27:34,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:27:34,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:27:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:27:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:27:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 04:27:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 04:27:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 04:27:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 04:27:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 04:27:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:34,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:35,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:35,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:27:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:35,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:35,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:35,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-28 04:27:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:35,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:27:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:35,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:27:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:27:35,114 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-28 04:27:35,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:27:35,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902511663] [2021-12-28 04:27:35,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902511663] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:27:35,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:27:35,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:27:35,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212658206] [2021-12-28 04:27:35,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:27:35,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:27:35,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:27:35,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:27:35,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:27:35,117 INFO L87 Difference]: Start difference. First operand 3967 states and 5569 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-28 04:27:44,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:27:46,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []