./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:05:13,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:05:13,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:05:13,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:05:13,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:05:13,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:05:13,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:05:13,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:05:13,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:05:13,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:05:13,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:05:13,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:05:13,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:05:13,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:05:13,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:05:13,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:05:13,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:05:13,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:05:13,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:05:13,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:05:13,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:05:13,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:05:13,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:05:13,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:05:13,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:05:13,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:05:13,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:05:13,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:05:13,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:05:13,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:05:13,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:05:13,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:05:13,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:05:13,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:05:13,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:05:13,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:05:13,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:05:13,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:05:13,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:05:13,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:05:13,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:05:13,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:05:13,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:05:13,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:05:13,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:05:13,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:05:13,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:05:13,202 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:05:13,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:05:13,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:05:13,203 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:05:13,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:05:13,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:05:13,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:05:13,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:05:13,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:05:13,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:05:13,204 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:05:13,204 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:05:13,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:05:13,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:05:13,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:05:13,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:05:13,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:05:13,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:05:13,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:05:13,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:05:13,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:05:13,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:05:13,206 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:05:13,206 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:05:13,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:05:13,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:05:13,206 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b [2021-12-14 18:05:13,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:05:13,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:05:13,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:05:13,443 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:05:13,443 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:05:13,449 INFO L432 ainManager$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 [2021-12-14 18:05:13,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d556b0b/eea03c0d3b374556aac34504859c779d/FLAG7400e0bb1 [2021-12-14 18:05:14,256 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:05:14,257 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 [2021-12-14 18:05:14,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d556b0b/eea03c0d3b374556aac34504859c779d/FLAG7400e0bb1 [2021-12-14 18:05:14,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d556b0b/eea03c0d3b374556aac34504859c779d [2021-12-14 18:05:14,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:05:14,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:05:14,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:05:14,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:05:14,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:05:14,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:05:14" (1/1) ... [2021-12-14 18:05:14,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3070ce39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:14, skipping insertion in model container [2021-12-14 18:05:14,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:05:14" (1/1) ... [2021-12-14 18:05:14,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:05:14,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:05:17,779 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] [2021-12-14 18:05:18,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:05:18,102 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:05:18,853 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] [2021-12-14 18:05:18,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:05:18,962 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:05:18,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18 WrapperNode [2021-12-14 18:05:18,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:05:18,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:05:18,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:05:18,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:05:18,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18" (1/1) ... [2021-12-14 18:05:19,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18" (1/1) ... [2021-12-14 18:05:19,248 INFO L137 Inliner]: procedures = 483, calls = 2853, calls flagged for inlining = 237, calls inlined = 184, statements flattened = 6899 [2021-12-14 18:05:19,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:05:19,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:05:19,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:05:19,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:05:19,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18" (1/1) ... [2021-12-14 18:05:19,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18" (1/1) ... [2021-12-14 18:05:19,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18" (1/1) ... [2021-12-14 18:05:19,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18" (1/1) ... [2021-12-14 18:05:19,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18" (1/1) ... [2021-12-14 18:05:19,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18" (1/1) ... [2021-12-14 18:05:19,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18" (1/1) ... [2021-12-14 18:05:19,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:05:19,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:05:19,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:05:19,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:05:19,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18" (1/1) ... [2021-12-14 18:05:19,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:05:19,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:05:19,539 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) [2021-12-14 18:05:19,563 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 [2021-12-14 18:05:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2021-12-14 18:05:19,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2021-12-14 18:05:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:05:19,569 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:05:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2021-12-14 18:05:19,570 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2021-12-14 18:05:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:05:19,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:05:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_isert_conn [2021-12-14 18:05:19,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_isert_conn [2021-12-14 18:05:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-14 18:05:19,570 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-14 18:05:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-14 18:05:19,571 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-14 18:05:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2021-12-14 18:05:19,571 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2021-12-14 18:05:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2021-12-14 18:05:19,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2021-12-14 18:05:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:05:19,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:05:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2021-12-14 18:05:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2021-12-14 18:05:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 18:05:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 18:05:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2021-12-14 18:05:19,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2021-12-14 18:05:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2021-12-14 18:05:19,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2021-12-14 18:05:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 18:05:19,573 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 18:05:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_isert_conn [2021-12-14 18:05:19,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_isert_conn [2021-12-14 18:05:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2021-12-14 18:05:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2021-12-14 18:05:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2021-12-14 18:05:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2021-12-14 18:05:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2021-12-14 18:05:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2021-12-14 18:05:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:05:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:05:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 18:05:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 18:05:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2021-12-14 18:05:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2021-12-14 18:05:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:05:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2021-12-14 18:05:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2021-12-14 18:05:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2021-12-14 18:05:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2021-12-14 18:05:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-14 18:05:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-14 18:05:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-14 18:05:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-14 18:05:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-14 18:05:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-14 18:05:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2021-12-14 18:05:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2021-12-14 18:05:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:05:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2021-12-14 18:05:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2021-12-14 18:05:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:05:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:05:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:05:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2021-12-14 18:05:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2021-12-14 18:05:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:05:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 18:05:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 18:05:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2021-12-14 18:05:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2021-12-14 18:05:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:05:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:05:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2021-12-14 18:05:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2021-12-14 18:05:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2021-12-14 18:05:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2021-12-14 18:05:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2021-12-14 18:05:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2021-12-14 18:05:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-14 18:05:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-14 18:05:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-14 18:05:19,583 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-14 18:05:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-12-14 18:05:19,583 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-12-14 18:05:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2021-12-14 18:05:19,583 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2021-12-14 18:05:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:05:19,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:05:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:05:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-14 18:05:19,584 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-14 18:05:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:05:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-14 18:05:19,585 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-14 18:05:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:05:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 18:05:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:05:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:05:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2021-12-14 18:05:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2021-12-14 18:05:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-14 18:05:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-14 18:05:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2021-12-14 18:05:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2021-12-14 18:05:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2021-12-14 18:05:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2021-12-14 18:05:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-14 18:05:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-14 18:05:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2021-12-14 18:05:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2021-12-14 18:05:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:05:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:05:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2021-12-14 18:05:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2021-12-14 18:05:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2021-12-14 18:05:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2021-12-14 18:05:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2021-12-14 18:05:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2021-12-14 18:05:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2021-12-14 18:05:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2021-12-14 18:05:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2021-12-14 18:05:19,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2021-12-14 18:05:19,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:05:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:05:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-14 18:05:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-14 18:05:19,594 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 18:05:19,594 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 18:05:19,598 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-14 18:05:19,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-14 18:05:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-14 18:05:19,599 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-14 18:05:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:05:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:05:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2021-12-14 18:05:19,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2021-12-14 18:05:19,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:05:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:05:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2021-12-14 18:05:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2021-12-14 18:05:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 18:05:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 18:05:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2021-12-14 18:05:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2021-12-14 18:05:19,600 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2021-12-14 18:05:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2021-12-14 18:05:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2021-12-14 18:05:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2021-12-14 18:05:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-14 18:05:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-14 18:05:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-14 18:05:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-14 18:05:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2021-12-14 18:05:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2021-12-14 18:05:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-14 18:05:19,601 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-14 18:05:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 18:05:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 18:05:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2021-12-14 18:05:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2021-12-14 18:05:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:05:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:05:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-14 18:05:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-14 18:05:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2021-12-14 18:05:19,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2021-12-14 18:05:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2021-12-14 18:05:19,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2021-12-14 18:05:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:05:19,603 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:05:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:05:19,603 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:05:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-14 18:05:19,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-14 18:05:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2021-12-14 18:05:19,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2021-12-14 18:05:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-14 18:05:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-14 18:05:19,604 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-14 18:05:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-14 18:05:19,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:05:19,604 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:05:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:05:19,604 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2021-12-14 18:05:19,604 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2021-12-14 18:05:19,604 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2021-12-14 18:05:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2021-12-14 18:05:19,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:05:19,605 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-14 18:05:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-14 18:05:19,605 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2021-12-14 18:05:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2021-12-14 18:05:19,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:05:19,605 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2021-12-14 18:05:19,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2021-12-14 18:05:19,605 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-14 18:05:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-14 18:05:19,606 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 18:05:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 18:05:19,606 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-14 18:05:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-14 18:05:19,606 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-14 18:05:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-14 18:05:19,606 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 18:05:19,606 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 18:05:19,606 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2021-12-14 18:05:19,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2021-12-14 18:05:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2021-12-14 18:05:19,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2021-12-14 18:05:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2021-12-14 18:05:19,607 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2021-12-14 18:05:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-14 18:05:19,607 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-14 18:05:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2021-12-14 18:05:19,607 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2021-12-14 18:05:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2021-12-14 18:05:19,608 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2021-12-14 18:05:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2021-12-14 18:05:19,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2021-12-14 18:05:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-14 18:05:19,608 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-14 18:05:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_list_mutex [2021-12-14 18:05:19,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_list_mutex [2021-12-14 18:05:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_list_mutex [2021-12-14 18:05:19,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_list_mutex [2021-12-14 18:05:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-12-14 18:05:19,609 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-12-14 18:05:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2021-12-14 18:05:19,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2021-12-14 18:05:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2021-12-14 18:05:19,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2021-12-14 18:05:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2021-12-14 18:05:19,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2021-12-14 18:05:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:05:19,609 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:05:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2021-12-14 18:05:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2021-12-14 18:05:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-14 18:05:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-14 18:05:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:05:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2021-12-14 18:05:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2021-12-14 18:05:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:05:19,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:05:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2021-12-14 18:05:19,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2021-12-14 18:05:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2021-12-14 18:05:19,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2021-12-14 18:05:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 18:05:19,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 18:05:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-14 18:05:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-14 18:05:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2021-12-14 18:05:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2021-12-14 18:05:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2021-12-14 18:05:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2021-12-14 18:05:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-14 18:05:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-14 18:05:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2021-12-14 18:05:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2021-12-14 18:05:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-14 18:05:19,616 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-14 18:05:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2021-12-14 18:05:19,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2021-12-14 18:05:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:05:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-14 18:05:19,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-14 18:05:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2021-12-14 18:05:19,617 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2021-12-14 18:05:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2021-12-14 18:05:19,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2021-12-14 18:05:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-14 18:05:19,618 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-14 18:05:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2021-12-14 18:05:19,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2021-12-14 18:05:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2021-12-14 18:05:19,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2021-12-14 18:05:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2021-12-14 18:05:19,618 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2021-12-14 18:05:20,706 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:05:20,711 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:05:20,893 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:05:28,480 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:05:28,493 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:05:28,493 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:05:28,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:05:28 BoogieIcfgContainer [2021-12-14 18:05:28,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:05:28,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:05:28,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:05:28,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:05:28,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:05:14" (1/3) ... [2021-12-14 18:05:28,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b632980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:05:28, skipping insertion in model container [2021-12-14 18:05:28,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:05:18" (2/3) ... [2021-12-14 18:05:28,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b632980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:05:28, skipping insertion in model container [2021-12-14 18:05:28,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:05:28" (3/3) ... [2021-12-14 18:05:28,503 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 [2021-12-14 18:05:28,506 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:05:28,507 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:05:28,543 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:05:28,547 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 [2021-12-14 18:05:28,553 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:05:28,597 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) [2021-12-14 18:05:28,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-14 18:05:28,604 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:05:28,605 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] [2021-12-14 18:05:28,605 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:05:28,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:05:28,609 INFO L85 PathProgramCache]: Analyzing trace with hash 287510443, now seen corresponding path program 1 times [2021-12-14 18:05:28,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:05:28,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765843837] [2021-12-14 18:05:28,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:05:28,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:05:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:29,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:05:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:29,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:05:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:29,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:05:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:29,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:29,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 18:05:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:29,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 18:05:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:29,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:29,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 18:05:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:29,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:29,443 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-14 18:05:29,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:05:29,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765843837] [2021-12-14 18:05:29,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765843837] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:05:29,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:05:29,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:05:29,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575245368] [2021-12-14 18:05:29,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:05:29,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:05:29,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:05:29,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:05:29,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:05:29,476 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) [2021-12-14 18:05:31,907 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 [] [2021-12-14 18:05:35,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:05:38,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:05:38,606 INFO L93 Difference]: Finished difference Result 5414 states and 8111 transitions. [2021-12-14 18:05:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:05:38,608 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 [2021-12-14 18:05:38,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:05:38,654 INFO L225 Difference]: With dead ends: 5414 [2021-12-14 18:05:38,654 INFO L226 Difference]: Without dead ends: 3072 [2021-12-14 18:05:38,674 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 [2021-12-14 18:05:38,678 INFO L933 BasicCegarLoop]: 2947 mSDtfsCounter, 6779 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 3802 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7114 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 5399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3802 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-12-14 18:05:38,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7114 Valid, 4540 Invalid, 5399 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3802 Valid, 1596 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2021-12-14 18:05:38,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2021-12-14 18:05:38,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 2314. [2021-12-14 18:05:38,882 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) [2021-12-14 18:05:38,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3252 transitions. [2021-12-14 18:05:38,899 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3252 transitions. Word has length 82 [2021-12-14 18:05:38,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:05:38,901 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 3252 transitions. [2021-12-14 18:05:38,901 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) [2021-12-14 18:05:38,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3252 transitions. [2021-12-14 18:05:38,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-14 18:05:38,909 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:05:38,909 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] [2021-12-14 18:05:38,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:05:38,909 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:05:38,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:05:38,910 INFO L85 PathProgramCache]: Analyzing trace with hash 321914562, now seen corresponding path program 1 times [2021-12-14 18:05:38,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:05:38,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518500994] [2021-12-14 18:05:38,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:05:38,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:05:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:39,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:05:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:39,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:05:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:39,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:05:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:39,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:39,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 18:05:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:39,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:39,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 18:05:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:39,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:39,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 18:05:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:39,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-14 18:05:39,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:05:39,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518500994] [2021-12-14 18:05:39,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518500994] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:05:39,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:05:39,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:05:39,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805257825] [2021-12-14 18:05:39,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:05:39,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:05:39,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:05:39,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:05:39,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:05:39,315 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) [2021-12-14 18:05:41,681 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 [] [2021-12-14 18:05:43,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:05:48,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:05:51,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:05:59,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:05:59,079 INFO L93 Difference]: Finished difference Result 3072 states and 4573 transitions. [2021-12-14 18:05:59,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:05:59,079 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 [2021-12-14 18:05:59,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:05:59,102 INFO L225 Difference]: With dead ends: 3072 [2021-12-14 18:05:59,103 INFO L226 Difference]: Without dead ends: 3069 [2021-12-14 18:05:59,107 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 [2021-12-14 18:05:59,108 INFO L933 BasicCegarLoop]: 2910 mSDtfsCounter, 5397 mSDsluCounter, 3832 mSDsCounter, 0 mSdLazyCounter, 3112 mSolverCounterSat, 2687 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5737 SdHoareTripleChecker+Valid, 6742 SdHoareTripleChecker+Invalid, 5803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2687 IncrementalHoareTripleChecker+Valid, 3112 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:05:59,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5737 Valid, 6742 Invalid, 5803 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2687 Valid, 3112 Invalid, 4 Unknown, 0 Unchecked, 19.3s Time] [2021-12-14 18:05:59,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2021-12-14 18:05:59,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2313. [2021-12-14 18:05:59,223 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) [2021-12-14 18:05:59,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3250 transitions. [2021-12-14 18:05:59,238 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3250 transitions. Word has length 83 [2021-12-14 18:05:59,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:05:59,238 INFO L470 AbstractCegarLoop]: Abstraction has 2313 states and 3250 transitions. [2021-12-14 18:05:59,239 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) [2021-12-14 18:05:59,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3250 transitions. [2021-12-14 18:05:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-14 18:05:59,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:05:59,240 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] [2021-12-14 18:05:59,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:05:59,241 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:05:59,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:05:59,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1388447118, now seen corresponding path program 1 times [2021-12-14 18:05:59,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:05:59,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18774997] [2021-12-14 18:05:59,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:05:59,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:05:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:59,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:05:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:59,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:59,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:05:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:59,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:05:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:59,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 18:05:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:59,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:59,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 18:05:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:59,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:59,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 18:05:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:59,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:05:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:05:59,762 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-14 18:05:59,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:05:59,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18774997] [2021-12-14 18:05:59,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18774997] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:05:59,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:05:59,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:05:59,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411829449] [2021-12-14 18:05:59,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:05:59,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:05:59,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:05:59,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:05:59,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:05:59,766 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) [2021-12-14 18:06:02,116 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 [] [2021-12-14 18:06:07,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:06:10,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:06:14,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:06:14,951 INFO L93 Difference]: Finished difference Result 3071 states and 4571 transitions. [2021-12-14 18:06:14,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:06:14,952 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 [2021-12-14 18:06:14,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:06:14,970 INFO L225 Difference]: With dead ends: 3071 [2021-12-14 18:06:14,971 INFO L226 Difference]: Without dead ends: 3068 [2021-12-14 18:06:14,973 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 [2021-12-14 18:06:14,974 INFO L933 BasicCegarLoop]: 2898 mSDtfsCounter, 5779 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 2324 mSolverCounterSat, 2851 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6121 SdHoareTripleChecker+Valid, 5536 SdHoareTripleChecker+Invalid, 5177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2851 IncrementalHoareTripleChecker+Valid, 2324 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2021-12-14 18:06:14,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6121 Valid, 5536 Invalid, 5177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2851 Valid, 2324 Invalid, 2 Unknown, 0 Unchecked, 14.8s Time] [2021-12-14 18:06:14,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2021-12-14 18:06:15,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2312. [2021-12-14 18:06:15,101 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) [2021-12-14 18:06:15,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 3248 transitions. [2021-12-14 18:06:15,113 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 3248 transitions. Word has length 84 [2021-12-14 18:06:15,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:06:15,114 INFO L470 AbstractCegarLoop]: Abstraction has 2312 states and 3248 transitions. [2021-12-14 18:06:15,114 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) [2021-12-14 18:06:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 3248 transitions. [2021-12-14 18:06:15,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-14 18:06:15,118 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:06:15,119 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] [2021-12-14 18:06:15,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:06:15,120 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:06:15,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:06:15,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1031885892, now seen corresponding path program 1 times [2021-12-14 18:06:15,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:06:15,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035002277] [2021-12-14 18:06:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:06:15,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:06:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:15,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:06:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:15,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:15,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:06:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:15,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:06:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:15,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:06:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:06:15,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 18:06:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat