./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-32_7a-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-32_7a-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 d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:17:35,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:17:35,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:17:35,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:17:35,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:17:35,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:17:35,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:17:35,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:17:35,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:17:35,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:17:35,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:17:35,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:17:35,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:17:35,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:17:35,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:17:35,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:17:35,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:17:35,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:17:35,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:17:35,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:17:35,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:17:35,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:17:35,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:17:35,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:17:35,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:17:35,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:17:35,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:17:35,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:17:35,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:17:35,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:17:35,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:17:35,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:17:35,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:17:35,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:17:35,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:17:35,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:17:35,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:17:35,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:17:35,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:17:35,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:17:35,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:17:35,411 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:17:35,426 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:17:35,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:17:35,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:17:35,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:17:35,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:17:35,433 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:17:35,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:17:35,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:17:35,434 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:17:35,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:17:35,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:17:35,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:17:35,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:17:35,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:17:35,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:17:35,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:17:35,436 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:17:35,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:17:35,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:17:35,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:17:35,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:17:35,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:17:35,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:17:35,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:17:35,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:17:35,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:17:35,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:17:35,438 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:17:35,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:17:35,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:17:35,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b [2021-12-28 04:17:35,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:17:35,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:17:35,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:17:35,773 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:17:35,774 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:17:35,776 INFO L432 ainManager$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-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-28 04:17:35,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e220a314/cd57269c36934d80bcb62cccd263059d/FLAGda5497a9d [2021-12-28 04:17:36,595 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:17:36,596 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-28 04:17:36,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e220a314/cd57269c36934d80bcb62cccd263059d/FLAGda5497a9d [2021-12-28 04:17:36,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e220a314/cd57269c36934d80bcb62cccd263059d [2021-12-28 04:17:36,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:17:36,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:17:36,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:17:36,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:17:36,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:17:36,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:17:36" (1/1) ... [2021-12-28 04:17:36,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41f21b95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:36, skipping insertion in model container [2021-12-28 04:17:36,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:17:36" (1/1) ... [2021-12-28 04:17:36,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:17:36,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:17:39,858 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-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[477998,478011] [2021-12-28 04:17:40,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:17:40,221 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:17:40,825 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-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[477998,478011] [2021-12-28 04:17:40,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:17:40,918 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:17:40,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:40 WrapperNode [2021-12-28 04:17:40,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:17:40,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:17:40,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:17:40,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:17:40,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:40" (1/1) ... [2021-12-28 04:17:41,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:40" (1/1) ... [2021-12-28 04:17:41,241 INFO L137 Inliner]: procedures = 483, calls = 2853, calls flagged for inlining = 237, calls inlined = 184, statements flattened = 6899 [2021-12-28 04:17:41,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:17:41,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:17:41,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:17:41,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:17:41,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:40" (1/1) ... [2021-12-28 04:17:41,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:40" (1/1) ... [2021-12-28 04:17:41,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:40" (1/1) ... [2021-12-28 04:17:41,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:40" (1/1) ... [2021-12-28 04:17:41,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:40" (1/1) ... [2021-12-28 04:17:41,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:40" (1/1) ... [2021-12-28 04:17:41,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:40" (1/1) ... [2021-12-28 04:17:41,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:17:41,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:17:41,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:17:41,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:17:41,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:40" (1/1) ... [2021-12-28 04:17:41,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:17:41,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:17:41,580 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 04:17:41,598 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 04:17:41,608 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2021-12-28 04:17:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2021-12-28 04:17:41,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:17:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:17:41,609 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2021-12-28 04:17:41,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2021-12-28 04:17:41,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:17:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:17:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_isert_conn [2021-12-28 04:17:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_isert_conn [2021-12-28 04:17:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-28 04:17:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-28 04:17:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-28 04:17:41,610 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-28 04:17:41,610 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2021-12-28 04:17:41,611 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2021-12-28 04:17:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2021-12-28 04:17:41,611 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2021-12-28 04:17:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:17:41,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-28 04:17:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2021-12-28 04:17:41,611 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2021-12-28 04:17:41,611 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:17:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:17:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2021-12-28 04:17:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2021-12-28 04:17:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2021-12-28 04:17:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2021-12-28 04:17:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:17:41,612 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:17:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_isert_conn [2021-12-28 04:17:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_isert_conn [2021-12-28 04:17:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2021-12-28 04:17:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2021-12-28 04:17:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2021-12-28 04:17:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2021-12-28 04:17:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2021-12-28 04:17:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2021-12-28 04:17:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 04:17:41,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 04:17:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:17:41,614 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:17:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2021-12-28 04:17:41,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2021-12-28 04:17:41,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:17:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2021-12-28 04:17:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2021-12-28 04:17:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2021-12-28 04:17:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2021-12-28 04:17:41,615 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-28 04:17:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-28 04:17:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-28 04:17:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-28 04:17:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-28 04:17:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-28 04:17:41,616 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2021-12-28 04:17:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2021-12-28 04:17:41,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:17:41,617 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2021-12-28 04:17:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2021-12-28 04:17:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:17:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:17:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:17:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2021-12-28 04:17:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2021-12-28 04:17:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:17:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:17:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:17:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2021-12-28 04:17:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2021-12-28 04:17:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 04:17:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 04:17:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2021-12-28 04:17:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2021-12-28 04:17:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2021-12-28 04:17:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2021-12-28 04:17:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2021-12-28 04:17:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2021-12-28 04:17:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-28 04:17:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-28 04:17:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-28 04:17:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-28 04:17:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-12-28 04:17:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-12-28 04:17:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2021-12-28 04:17:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2021-12-28 04:17:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:17:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:17:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:17:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-28 04:17:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-28 04:17:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:17:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-28 04:17:41,623 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-28 04:17:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:17:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:17:41,623 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:17:41,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:17:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2021-12-28 04:17:41,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2021-12-28 04:17:41,624 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-28 04:17:41,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-28 04:17:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2021-12-28 04:17:41,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2021-12-28 04:17:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2021-12-28 04:17:41,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2021-12-28 04:17:41,625 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-28 04:17:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-28 04:17:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2021-12-28 04:17:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2021-12-28 04:17:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 04:17:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 04:17:41,626 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2021-12-28 04:17:41,626 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2021-12-28 04:17:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2021-12-28 04:17:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2021-12-28 04:17:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2021-12-28 04:17:41,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2021-12-28 04:17:41,627 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2021-12-28 04:17:41,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2021-12-28 04:17:41,629 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2021-12-28 04:17:41,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2021-12-28 04:17:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:17:41,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:17:41,630 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-28 04:17:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-28 04:17:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 04:17:41,631 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 04:17:41,631 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-28 04:17:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-28 04:17:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-28 04:17:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-28 04:17:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:17:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:17:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2021-12-28 04:17:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2021-12-28 04:17:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:17:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:17:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2021-12-28 04:17:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2021-12-28 04:17:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 04:17:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 04:17:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2021-12-28 04:17:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2021-12-28 04:17:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2021-12-28 04:17:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2021-12-28 04:17:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2021-12-28 04:17:41,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2021-12-28 04:17:41,637 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-28 04:17:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-28 04:17:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-28 04:17:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-28 04:17:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2021-12-28 04:17:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2021-12-28 04:17:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-28 04:17:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-28 04:17:41,638 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 04:17:41,638 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 04:17:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2021-12-28 04:17:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2021-12-28 04:17:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:17:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:17:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-28 04:17:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-28 04:17:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2021-12-28 04:17:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2021-12-28 04:17:41,639 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2021-12-28 04:17:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2021-12-28 04:17:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:17:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:17:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:17:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:17:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-28 04:17:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-28 04:17:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2021-12-28 04:17:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2021-12-28 04:17:41,640 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-28 04:17:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-28 04:17:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-28 04:17:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-28 04:17:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:17:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 04:17:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 04:17:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2021-12-28 04:17:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2021-12-28 04:17:41,641 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2021-12-28 04:17:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2021-12-28 04:17:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:17:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-28 04:17:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-28 04:17:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2021-12-28 04:17:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2021-12-28 04:17:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:17:41,642 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2021-12-28 04:17:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2021-12-28 04:17:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-28 04:17:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-28 04:17:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 04:17:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 04:17:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-28 04:17:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-28 04:17:41,643 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-28 04:17:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-28 04:17:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 04:17:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 04:17:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2021-12-28 04:17:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2021-12-28 04:17:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2021-12-28 04:17:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2021-12-28 04:17:41,644 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2021-12-28 04:17:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2021-12-28 04:17:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-28 04:17:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-28 04:17:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2021-12-28 04:17:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2021-12-28 04:17:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2021-12-28 04:17:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2021-12-28 04:17:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2021-12-28 04:17:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2021-12-28 04:17:41,645 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-28 04:17:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-28 04:17:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_list_mutex [2021-12-28 04:17:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_list_mutex [2021-12-28 04:17:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_list_mutex [2021-12-28 04:17:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_list_mutex [2021-12-28 04:17:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-12-28 04:17:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-12-28 04:17:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2021-12-28 04:17:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2021-12-28 04:17:41,646 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2021-12-28 04:17:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2021-12-28 04:17:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2021-12-28 04:17:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2021-12-28 04:17:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:17:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:17:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2021-12-28 04:17:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2021-12-28 04:17:41,647 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-28 04:17:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-28 04:17:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:17:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2021-12-28 04:17:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2021-12-28 04:17:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:17:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:17:41,648 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2021-12-28 04:17:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2021-12-28 04:17:41,649 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2021-12-28 04:17:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2021-12-28 04:17:41,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:17:41,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:17:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-28 04:17:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-28 04:17:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2021-12-28 04:17:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2021-12-28 04:17:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2021-12-28 04:17:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2021-12-28 04:17:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-28 04:17:41,653 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-28 04:17:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2021-12-28 04:17:41,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2021-12-28 04:17:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-28 04:17:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-28 04:17:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2021-12-28 04:17:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2021-12-28 04:17:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:17:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-28 04:17:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-28 04:17:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2021-12-28 04:17:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2021-12-28 04:17:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2021-12-28 04:17:41,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2021-12-28 04:17:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-28 04:17:41,655 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-28 04:17:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2021-12-28 04:17:41,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2021-12-28 04:17:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2021-12-28 04:17:41,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2021-12-28 04:17:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2021-12-28 04:17:41,655 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2021-12-28 04:17:42,487 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:17:42,489 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:17:42,617 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:17:47,975 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:17:47,990 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:17:47,990 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:17:47,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:17:47 BoogieIcfgContainer [2021-12-28 04:17:47,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:17:47,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:17:47,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:17:47,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:17:48,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:17:36" (1/3) ... [2021-12-28 04:17:48,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a565f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:17:48, skipping insertion in model container [2021-12-28 04:17:48,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:17:40" (2/3) ... [2021-12-28 04:17:48,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a565f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:17:48, skipping insertion in model container [2021-12-28 04:17:48,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:17:47" (3/3) ... [2021-12-28 04:17:48,002 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-28 04:17:48,007 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:17:48,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:17:48,059 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:17:48,073 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 04:17:48,073 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:17:48,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 2324 states, 1602 states have (on average 1.3258426966292134) internal successors, (2124), 1662 states have internal predecessors, (2124), 590 states have call successors, (590), 131 states have call predecessors, (590), 130 states have return successors, (584), 573 states have call predecessors, (584), 584 states have call successors, (584) [2021-12-28 04:17:48,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-28 04:17:48,136 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:17:48,137 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, 1, 1, 1] [2021-12-28 04:17:48,137 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:17:48,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:17:48,141 INFO L85 PathProgramCache]: Analyzing trace with hash 287510443, now seen corresponding path program 1 times [2021-12-28 04:17:48,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:17:48,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078597274] [2021-12-28 04:17:48,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:17:48,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:17:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:48,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:17:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:48,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:48,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:48,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:17:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:48,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:48,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 04:17:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:48,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:48,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 04:17:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:48,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:49,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 04:17:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:49,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:49,054 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 04:17:49,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:17:49,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078597274] [2021-12-28 04:17:49,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078597274] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:17:49,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:17:49,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:17:49,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377288020] [2021-12-28 04:17:49,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:17:49,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:17:49,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:17:49,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:17:49,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:17:49,089 INFO L87 Difference]: Start difference. First operand has 2324 states, 1602 states have (on average 1.3258426966292134) internal successors, (2124), 1662 states have internal predecessors, (2124), 590 states have call successors, (590), 131 states have call predecessors, (590), 130 states have return successors, (584), 573 states have call predecessors, (584), 584 states have call successors, (584) Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 04:17:51,533 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 04:17:56,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:17:56,501 INFO L93 Difference]: Finished difference Result 5414 states and 8111 transitions. [2021-12-28 04:17:56,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:17:56,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2021-12-28 04:17:56,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:17:56,544 INFO L225 Difference]: With dead ends: 5414 [2021-12-28 04:17:56,544 INFO L226 Difference]: Without dead ends: 3072 [2021-12-28 04:17:56,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:17:56,567 INFO L933 BasicCegarLoop]: 2947 mSDtfsCounter, 6779 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 3794 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7115 SdHoareTripleChecker+Valid, 4530 SdHoareTripleChecker+Invalid, 5406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3794 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:17:56,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7115 Valid, 4530 Invalid, 5406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3794 Valid, 1611 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2021-12-28 04:17:56,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2021-12-28 04:17:56,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 2314. [2021-12-28 04:17:56,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 1597 states have (on average 1.313713212273012) internal successors, (2098), 1647 states have internal predecessors, (2098), 582 states have call successors, (582), 135 states have call predecessors, (582), 134 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2021-12-28 04:17:56,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3252 transitions. [2021-12-28 04:17:56,791 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3252 transitions. Word has length 82 [2021-12-28 04:17:56,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:17:56,792 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 3252 transitions. [2021-12-28 04:17:56,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 04:17:56,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3252 transitions. [2021-12-28 04:17:56,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-28 04:17:56,800 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:17:56,800 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, 1, 1, 1, 1] [2021-12-28 04:17:56,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:17:56,801 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:17:56,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:17:56,801 INFO L85 PathProgramCache]: Analyzing trace with hash 321914562, now seen corresponding path program 1 times [2021-12-28 04:17:56,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:17:56,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108620624] [2021-12-28 04:17:56,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:17:56,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:17:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:57,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:17:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:57,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:57,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:17:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:57,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:17:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:57,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:57,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 04:17:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:57,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:57,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 04:17:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:57,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:57,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 04:17:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:57,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:17:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:17:57,231 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 04:17:57,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:17:57,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108620624] [2021-12-28 04:17:57,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108620624] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:17:57,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:17:57,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:17:57,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273584682] [2021-12-28 04:17:57,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:17:57,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:17:57,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:17:57,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:17:57,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:17:57,236 INFO L87 Difference]: Start difference. First operand 2314 states and 3252 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 04:17:59,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:18:01,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:18:05,791 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 04:18:11,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:11,597 INFO L93 Difference]: Finished difference Result 3072 states and 4573 transitions. [2021-12-28 04:18:11,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:18:11,598 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2021-12-28 04:18:11,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:11,614 INFO L225 Difference]: With dead ends: 3072 [2021-12-28 04:18:11,614 INFO L226 Difference]: Without dead ends: 3069 [2021-12-28 04:18:11,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:18:11,616 INFO L933 BasicCegarLoop]: 2912 mSDtfsCounter, 5391 mSDsluCounter, 3829 mSDsCounter, 0 mSdLazyCounter, 3115 mSolverCounterSat, 2686 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5732 SdHoareTripleChecker+Valid, 6741 SdHoareTripleChecker+Invalid, 5804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2686 IncrementalHoareTripleChecker+Valid, 3115 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:11,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5732 Valid, 6741 Invalid, 5804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2686 Valid, 3115 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time] [2021-12-28 04:18:11,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2021-12-28 04:18:11,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2313. [2021-12-28 04:18:11,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2313 states, 1597 states have (on average 1.3130870381966186) internal successors, (2097), 1646 states have internal predecessors, (2097), 581 states have call successors, (581), 135 states have call predecessors, (581), 134 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2021-12-28 04:18:11,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3250 transitions. [2021-12-28 04:18:11,699 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3250 transitions. Word has length 83 [2021-12-28 04:18:11,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:11,699 INFO L470 AbstractCegarLoop]: Abstraction has 2313 states and 3250 transitions. [2021-12-28 04:18:11,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 04:18:11,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3250 transitions. [2021-12-28 04:18:11,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-28 04:18:11,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:11,701 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, 1, 1, 1, 1, 1] [2021-12-28 04:18:11,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:18:11,701 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:11,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:11,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1388447118, now seen corresponding path program 1 times [2021-12-28 04:18:11,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:11,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795312271] [2021-12-28 04:18:11,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:11,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:18:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 04:18:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 04:18:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:11,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 04:18:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:12,094 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 04:18:12,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:12,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795312271] [2021-12-28 04:18:12,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795312271] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:12,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:12,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:18:12,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686997690] [2021-12-28 04:18:12,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:12,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:18:12,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:12,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:18:12,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:18:12,097 INFO L87 Difference]: Start difference. First operand 2313 states and 3250 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 04:18:14,375 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 04:18:18,419 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 04:18:22,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:22,996 INFO L93 Difference]: Finished difference Result 3071 states and 4571 transitions. [2021-12-28 04:18:22,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:18:22,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2021-12-28 04:18:22,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:23,012 INFO L225 Difference]: With dead ends: 3071 [2021-12-28 04:18:23,012 INFO L226 Difference]: Without dead ends: 3068 [2021-12-28 04:18:23,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:18:23,016 INFO L933 BasicCegarLoop]: 2897 mSDtfsCounter, 5779 mSDsluCounter, 2625 mSDsCounter, 0 mSdLazyCounter, 2333 mSolverCounterSat, 2851 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6125 SdHoareTripleChecker+Valid, 5522 SdHoareTripleChecker+Invalid, 5186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2851 IncrementalHoareTripleChecker+Valid, 2333 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:23,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6125 Valid, 5522 Invalid, 5186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2851 Valid, 2333 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2021-12-28 04:18:23,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2021-12-28 04:18:23,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2312. [2021-12-28 04:18:23,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2312 states, 1597 states have (on average 1.3124608641202253) internal successors, (2096), 1645 states have internal predecessors, (2096), 580 states have call successors, (580), 135 states have call predecessors, (580), 134 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2021-12-28 04:18:23,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 3248 transitions. [2021-12-28 04:18:23,106 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 3248 transitions. Word has length 84 [2021-12-28 04:18:23,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:23,107 INFO L470 AbstractCegarLoop]: Abstraction has 2312 states and 3248 transitions. [2021-12-28 04:18:23,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 04:18:23,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 3248 transitions. [2021-12-28 04:18:23,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-28 04:18:23,108 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:23,109 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:23,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:18:23,109 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:23,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:23,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1031885892, now seen corresponding path program 1 times [2021-12-28 04:18:23,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:23,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924578891] [2021-12-28 04:18:23,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:23,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:18:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 04:18:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 04:18:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 04:18:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:23,384 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 04:18:23,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:23,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924578891] [2021-12-28 04:18:23,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924578891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:23,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:23,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:18:23,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515618165] [2021-12-28 04:18:23,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:23,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:18:23,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:23,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:18:23,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:18:23,387 INFO L87 Difference]: Start difference. First operand 2312 states and 3248 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 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 04:18:26,486 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 04:18:29,678 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 04:18:37,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:18:37,193 INFO L93 Difference]: Finished difference Result 7923 states and 11566 transitions. [2021-12-28 04:18:37,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:18:37,193 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 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 86 [2021-12-28 04:18:37,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:18:37,220 INFO L225 Difference]: With dead ends: 7923 [2021-12-28 04:18:37,221 INFO L226 Difference]: Without dead ends: 5632 [2021-12-28 04:18:37,229 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 04:18:37,229 INFO L933 BasicCegarLoop]: 3276 mSDtfsCounter, 9370 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 3775 mSolverCounterSat, 6177 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9689 SdHoareTripleChecker+Valid, 6904 SdHoareTripleChecker+Invalid, 9954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6177 IncrementalHoareTripleChecker+Valid, 3775 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:18:37,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9689 Valid, 6904 Invalid, 9954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6177 Valid, 3775 Invalid, 2 Unknown, 0 Unchecked, 13.3s Time] [2021-12-28 04:18:37,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5632 states. [2021-12-28 04:18:37,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5632 to 4126. [2021-12-28 04:18:37,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4126 states, 2862 states have (on average 1.3095737246680643) internal successors, (3748), 2950 states have internal predecessors, (3748), 1002 states have call successors, (1002), 262 states have call predecessors, (1002), 261 states have return successors, (994), 971 states have call predecessors, (994), 994 states have call successors, (994) [2021-12-28 04:18:37,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 5744 transitions. [2021-12-28 04:18:37,396 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 5744 transitions. Word has length 86 [2021-12-28 04:18:37,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:18:37,396 INFO L470 AbstractCegarLoop]: Abstraction has 4126 states and 5744 transitions. [2021-12-28 04:18:37,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 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 04:18:37,397 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 5744 transitions. [2021-12-28 04:18:37,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-28 04:18:37,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:18:37,401 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, 1, 1, 1, 1, 1, 1] [2021-12-28 04:18:37,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:18:37,402 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:18:37,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:18:37,402 INFO L85 PathProgramCache]: Analyzing trace with hash 91222853, now seen corresponding path program 1 times [2021-12-28 04:18:37,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:18:37,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345418814] [2021-12-28 04:18:37,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:18:37,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:18:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:37,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:18:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:37,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:37,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:18:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:37,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 04:18:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:37,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:37,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 04:18:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:37,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:37,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 04:18:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:37,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 04:18:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:37,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:18:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:18:37,669 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 04:18:37,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:18:37,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345418814] [2021-12-28 04:18:37,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345418814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:18:37,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:18:37,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:18:37,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057366448] [2021-12-28 04:18:37,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:18:37,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:18:37,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:18:37,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:18:37,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:18:37,672 INFO L87 Difference]: Start difference. First operand 4126 states and 5744 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-28 04:18:41,086 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 []