./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b01f589d408f6e26ea7a63733affb8614d3f46d7c24e67c8e520356eb639cf0d --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:14:30,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:14:30,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:14:30,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:14:30,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:14:30,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:14:30,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:14:30,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:14:30,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:14:30,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:14:30,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:14:30,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:14:30,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:14:30,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:14:30,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:14:30,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:14:30,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:14:30,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:14:30,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:14:30,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:14:30,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:14:30,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:14:30,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:14:30,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:14:30,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:14:30,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:14:30,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:14:30,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:14:30,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:14:30,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:14:30,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:14:30,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:14:30,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:14:30,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:14:30,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:14:30,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:14:30,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:14:30,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:14:30,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:14:30,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:14:30,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:14:30,322 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:14:30,340 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:14:30,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:14:30,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:14:30,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:14:30,342 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:14:30,342 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:14:30,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:14:30,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:14:30,343 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:14:30,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:14:30,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:14:30,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:14:30,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:14:30,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:14:30,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:14:30,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:14:30,345 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:14:30,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:14:30,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:14:30,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:14:30,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:14:30,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:14:30,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:14:30,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:14:30,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:14:30,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:14:30,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:14:30,346 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:14:30,346 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:14:30,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:14:30,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:14:30,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b01f589d408f6e26ea7a63733affb8614d3f46d7c24e67c8e520356eb639cf0d [2021-12-14 18:14:30,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:14:30,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:14:30,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:14:30,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:14:30,549 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:14:30,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-14 18:14:30,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d6b3b04/c55c97e101c946c392fb4ce9d14a0f51/FLAG9119eb1bb [2021-12-14 18:14:31,299 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:14:31,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-14 18:14:31,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d6b3b04/c55c97e101c946c392fb4ce9d14a0f51/FLAG9119eb1bb [2021-12-14 18:14:31,645 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34d6b3b04/c55c97e101c946c392fb4ce9d14a0f51 [2021-12-14 18:14:31,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:14:31,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:14:31,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:14:31,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:14:31,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:14:31,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:14:31" (1/1) ... [2021-12-14 18:14:31,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548315ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:31, skipping insertion in model container [2021-12-14 18:14:31,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:14:31" (1/1) ... [2021-12-14 18:14:31,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:14:31,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:14:34,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[472306,472319] [2021-12-14 18:14:34,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:14:34,634 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:14:35,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[472306,472319] [2021-12-14 18:14:35,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:14:35,281 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:14:35,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:35 WrapperNode [2021-12-14 18:14:35,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:14:35,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:14:35,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:14:35,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:14:35,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:35" (1/1) ... [2021-12-14 18:14:35,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:35" (1/1) ... [2021-12-14 18:14:35,549 INFO L137 Inliner]: procedures = 390, calls = 2687, calls flagged for inlining = 203, calls inlined = 169, statements flattened = 6741 [2021-12-14 18:14:35,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:14:35,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:14:35,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:14:35,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:14:35,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:35" (1/1) ... [2021-12-14 18:14:35,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:35" (1/1) ... [2021-12-14 18:14:35,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:35" (1/1) ... [2021-12-14 18:14:35,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:35" (1/1) ... [2021-12-14 18:14:35,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:35" (1/1) ... [2021-12-14 18:14:35,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:35" (1/1) ... [2021-12-14 18:14:35,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:35" (1/1) ... [2021-12-14 18:14:35,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:14:35,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:14:35,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:14:35,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:14:35,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:35" (1/1) ... [2021-12-14 18:14:35,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:14:35,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:14:35,799 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 18:14:35,814 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 18:14:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2021-12-14 18:14:35,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2021-12-14 18:14:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:14:35,827 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:14:35,827 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2021-12-14 18:14:35,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2021-12-14 18:14:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 18:14:35,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 18:14:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:14:35,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:14:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-14 18:14:35,828 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-14 18:14:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-14 18:14:35,828 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-14 18:14:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2021-12-14 18:14:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2021-12-14 18:14:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2021-12-14 18:14:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2021-12-14 18:14:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:14:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:14:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2021-12-14 18:14:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2021-12-14 18:14:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 18:14:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 18:14:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2021-12-14 18:14:35,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2021-12-14 18:14:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2021-12-14 18:14:35,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2021-12-14 18:14:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2021-12-14 18:14:35,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2021-12-14 18:14:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2021-12-14 18:14:35,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2021-12-14 18:14:35,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:14:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:14:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 18:14:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 18:14:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:14:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2021-12-14 18:14:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2021-12-14 18:14:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2021-12-14 18:14:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2021-12-14 18:14:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-14 18:14:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2021-12-14 18:14:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-14 18:14:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-14 18:14:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-14 18:14:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-14 18:14:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2021-12-14 18:14:35,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2021-12-14 18:14:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:14:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2021-12-14 18:14:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2021-12-14 18:14:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:14:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:14:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:14:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2021-12-14 18:14:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2021-12-14 18:14:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:14:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 18:14:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 18:14:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2021-12-14 18:14:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2021-12-14 18:14:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:14:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:14:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2021-12-14 18:14:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2021-12-14 18:14:35,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 18:14:35,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 18:14:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2021-12-14 18:14:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2021-12-14 18:14:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2021-12-14 18:14:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2021-12-14 18:14:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-14 18:14:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-14 18:14:35,835 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-14 18:14:35,835 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-14 18:14:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2021-12-14 18:14:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2021-12-14 18:14:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2021-12-14 18:14:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2021-12-14 18:14:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:14:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:14:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:14:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-14 18:14:35,836 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-14 18:14:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:14:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-14 18:14:35,837 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-14 18:14:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:14:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 18:14:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:14:35,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:14:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2021-12-14 18:14:35,837 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2021-12-14 18:14:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-14 18:14:35,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-14 18:14:35,838 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2021-12-14 18:14:35,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2021-12-14 18:14:35,838 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2021-12-14 18:14:35,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2021-12-14 18:14:35,838 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-14 18:14:35,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-14 18:14:35,838 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2021-12-14 18:14:35,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2021-12-14 18:14:35,839 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:14:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:14:35,839 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2021-12-14 18:14:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2021-12-14 18:14:35,839 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2021-12-14 18:14:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2021-12-14 18:14:35,839 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2021-12-14 18:14:35,839 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2021-12-14 18:14:35,839 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2021-12-14 18:14:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2021-12-14 18:14:35,840 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2021-12-14 18:14:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2021-12-14 18:14:35,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:14:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:14:35,840 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-14 18:14:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-14 18:14:35,840 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 18:14:35,840 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 18:14:35,841 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-14 18:14:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-14 18:14:35,841 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-14 18:14:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-14 18:14:35,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:14:35,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:14:35,841 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2021-12-14 18:14:35,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2021-12-14 18:14:35,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:14:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:14:35,842 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2021-12-14 18:14:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2021-12-14 18:14:35,842 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 18:14:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 18:14:35,842 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2021-12-14 18:14:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2021-12-14 18:14:35,842 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2021-12-14 18:14:35,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2021-12-14 18:14:35,843 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2021-12-14 18:14:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2021-12-14 18:14:35,843 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-14 18:14:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-14 18:14:35,843 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-14 18:14:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-14 18:14:35,843 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2021-12-14 18:14:35,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2021-12-14 18:14:35,843 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-14 18:14:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-14 18:14:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 18:14:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 18:14:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2021-12-14 18:14:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2021-12-14 18:14:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:14:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:14:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-14 18:14:35,844 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-14 18:14:35,844 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2021-12-14 18:14:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2021-12-14 18:14:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2021-12-14 18:14:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2021-12-14 18:14:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:14:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:14:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:14:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:14:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2021-12-14 18:14:35,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2021-12-14 18:14:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-14 18:14:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-14 18:14:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:14:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:14:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:14:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2021-12-14 18:14:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2021-12-14 18:14:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2021-12-14 18:14:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2021-12-14 18:14:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:14:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-14 18:14:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-14 18:14:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-14 18:14:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-14 18:14:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2021-12-14 18:14:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2021-12-14 18:14:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:14:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2021-12-14 18:14:35,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2021-12-14 18:14:35,847 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-14 18:14:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-14 18:14:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 18:14:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 18:14:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-14 18:14:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-14 18:14:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-14 18:14:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-14 18:14:35,848 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2021-12-14 18:14:35,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2021-12-14 18:14:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 18:14:35,849 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 18:14:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2021-12-14 18:14:35,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2021-12-14 18:14:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2021-12-14 18:14:35,849 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2021-12-14 18:14:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-14 18:14:35,849 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-14 18:14:35,849 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2021-12-14 18:14:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2021-12-14 18:14:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2021-12-14 18:14:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2021-12-14 18:14:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2021-12-14 18:14:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2021-12-14 18:14:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-14 18:14:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-14 18:14:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2021-12-14 18:14:35,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2021-12-14 18:14:35,850 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2021-12-14 18:14:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2021-12-14 18:14:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2021-12-14 18:14:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2021-12-14 18:14:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2021-12-14 18:14:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2021-12-14 18:14:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:14:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:14:35,851 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2021-12-14 18:14:35,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2021-12-14 18:14:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-14 18:14:35,852 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-14 18:14:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:14:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2021-12-14 18:14:35,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2021-12-14 18:14:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:14:35,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:14:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2021-12-14 18:14:35,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2021-12-14 18:14:35,852 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2021-12-14 18:14:35,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2021-12-14 18:14:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 18:14:35,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 18:14:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-14 18:14:35,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-14 18:14:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2021-12-14 18:14:35,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2021-12-14 18:14:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2021-12-14 18:14:35,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2021-12-14 18:14:35,853 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-14 18:14:35,854 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-14 18:14:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2021-12-14 18:14:35,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2021-12-14 18:14:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-14 18:14:35,854 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-14 18:14:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2021-12-14 18:14:35,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2021-12-14 18:14:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:14:35,854 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-14 18:14:35,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-14 18:14:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2021-12-14 18:14:35,855 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2021-12-14 18:14:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2021-12-14 18:14:35,855 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2021-12-14 18:14:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-14 18:14:35,855 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-14 18:14:35,855 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2021-12-14 18:14:35,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2021-12-14 18:14:35,856 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2021-12-14 18:14:35,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2021-12-14 18:14:35,856 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2021-12-14 18:14:35,856 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2021-12-14 18:14:36,687 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:14:36,692 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:14:36,883 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:14:41,879 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:14:41,901 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:14:41,902 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:14:41,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:14:41 BoogieIcfgContainer [2021-12-14 18:14:41,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:14:41,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:14:41,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:14:41,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:14:41,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:14:31" (1/3) ... [2021-12-14 18:14:41,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13db46c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:14:41, skipping insertion in model container [2021-12-14 18:14:41,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:14:35" (2/3) ... [2021-12-14 18:14:41,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13db46c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:14:41, skipping insertion in model container [2021-12-14 18:14:41,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:14:41" (3/3) ... [2021-12-14 18:14:41,917 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2021-12-14 18:14:41,923 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:14:41,924 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:14:41,974 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:14:41,989 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 18:14:41,990 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:14:42,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 2249 states, 1558 states have (on average 1.3286264441591784) internal successors, (2070), 1611 states have internal predecessors, (2070), 565 states have call successors, (565), 125 states have call predecessors, (565), 124 states have return successors, (559), 548 states have call predecessors, (559), 559 states have call successors, (559) [2021-12-14 18:14:42,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-14 18:14:42,054 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:14:42,054 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:14:42,055 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:14:42,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:14:42,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1434667982, now seen corresponding path program 1 times [2021-12-14 18:14:42,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:14:42,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712881686] [2021-12-14 18:14:42,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:14:42,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:14:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:42,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:14:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:42,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:42,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:42,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:14:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:42,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:42,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 18:14:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:42,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:42,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 18:14:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:42,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:42,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 18:14:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:42,655 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 18:14:42,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:14:42,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712881686] [2021-12-14 18:14:42,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712881686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:14:42,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:14:42,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:14:42,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120188704] [2021-12-14 18:14:42,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:14:42,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:14:42,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:14:42,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:14:42,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:14:42,685 INFO L87 Difference]: Start difference. First operand has 2249 states, 1558 states have (on average 1.3286264441591784) internal successors, (2070), 1611 states have internal predecessors, (2070), 565 states have call successors, (565), 125 states have call predecessors, (565), 124 states have return successors, (559), 548 states have call predecessors, (559), 559 states have call successors, (559) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-14 18:14:44,961 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 18:14:48,787 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 18:14:52,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:14:52,525 INFO L93 Difference]: Finished difference Result 5245 states and 7862 transitions. [2021-12-14 18:14:52,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 18:14:52,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2021-12-14 18:14:52,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:14:52,560 INFO L225 Difference]: With dead ends: 5245 [2021-12-14 18:14:52,560 INFO L226 Difference]: Without dead ends: 2971 [2021-12-14 18:14:52,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:14:52,618 INFO L933 BasicCegarLoop]: 2896 mSDtfsCounter, 3498 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 2944 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3563 SdHoareTripleChecker+Valid, 4434 SdHoareTripleChecker+Invalid, 4448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2944 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-12-14 18:14:52,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3563 Valid, 4434 Invalid, 4448 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2944 Valid, 1502 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2021-12-14 18:14:52,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2021-12-14 18:14:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 2219. [2021-12-14 18:14:52,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 1537 states have (on average 1.3201040988939492) internal successors, (2029), 1583 states have internal predecessors, (2029), 558 states have call successors, (558), 124 states have call predecessors, (558), 123 states have return successors, (556), 545 states have call predecessors, (556), 556 states have call successors, (556) [2021-12-14 18:14:52,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3143 transitions. [2021-12-14 18:14:52,821 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3143 transitions. Word has length 79 [2021-12-14 18:14:52,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:14:52,822 INFO L470 AbstractCegarLoop]: Abstraction has 2219 states and 3143 transitions. [2021-12-14 18:14:52,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-14 18:14:52,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3143 transitions. [2021-12-14 18:14:52,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-14 18:14:52,830 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:14:52,831 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:14:52,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:14:52,831 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:14:52,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:14:52,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1906359156, now seen corresponding path program 1 times [2021-12-14 18:14:52,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:14:52,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169146291] [2021-12-14 18:14:52,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:14:52,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:14:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:53,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:14:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:53,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:53,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:14:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:53,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:14:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:53,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:53,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 18:14:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:53,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:53,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 18:14:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:53,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:53,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 18:14:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:53,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:14:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:14:53,231 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-12-14 18:14:53,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:14:53,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169146291] [2021-12-14 18:14:53,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169146291] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:14:53,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:14:53,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:14:53,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865717044] [2021-12-14 18:14:53,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:14:53,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:14:53,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:14:53,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:14:53,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:14:53,238 INFO L87 Difference]: Start difference. First operand 2219 states and 3143 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-14 18:14:58,191 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 18:15:06,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:15:06,474 INFO L93 Difference]: Finished difference Result 7646 states and 11254 transitions. [2021-12-14 18:15:06,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:15:06,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 79 [2021-12-14 18:15:06,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:15:06,512 INFO L225 Difference]: With dead ends: 7646 [2021-12-14 18:15:06,512 INFO L226 Difference]: Without dead ends: 5448 [2021-12-14 18:15:06,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 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 18:15:06,528 INFO L933 BasicCegarLoop]: 3182 mSDtfsCounter, 9144 mSDsluCounter, 3973 mSDsCounter, 0 mSdLazyCounter, 3286 mSolverCounterSat, 5980 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9445 SdHoareTripleChecker+Valid, 7155 SdHoareTripleChecker+Invalid, 9267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5980 IncrementalHoareTripleChecker+Valid, 3286 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:15:06,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9445 Valid, 7155 Invalid, 9267 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5980 Valid, 3286 Invalid, 1 Unknown, 0 Unchecked, 12.6s Time] [2021-12-14 18:15:06,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5448 states. [2021-12-14 18:15:06,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5448 to 3967. [2021-12-14 18:15:06,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3967 states, 2757 states have (on average 1.3173739571998548) internal successors, (3632), 2845 states have internal predecessors, (3632), 970 states have call successors, (970), 240 states have call predecessors, (970), 239 states have return successors, (967), 945 states have call predecessors, (967), 967 states have call successors, (967) [2021-12-14 18:15:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 5569 transitions. [2021-12-14 18:15:06,700 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 5569 transitions. Word has length 79 [2021-12-14 18:15:06,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:15:06,701 INFO L470 AbstractCegarLoop]: Abstraction has 3967 states and 5569 transitions. [2021-12-14 18:15:06,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-14 18:15:06,701 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 5569 transitions. [2021-12-14 18:15:06,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-14 18:15:06,744 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:15:06,744 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:15:06,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:15:06,745 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:15:06,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:15:06,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1136123505, now seen corresponding path program 1 times [2021-12-14 18:15:06,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:15:06,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867149881] [2021-12-14 18:15:06,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:15:06,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:15:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:06,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:15:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:06,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:06,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:15:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:06,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:15:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 18:15:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 18:15:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 18:15:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 18:15:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:15:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 18:15:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:07,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:15:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-14 18:15:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:15:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-14 18:15:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:15:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:07,267 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-14 18:15:07,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:15:07,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867149881] [2021-12-14 18:15:07,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867149881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:15:07,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:15:07,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 18:15:07,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177415108] [2021-12-14 18:15:07,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:15:07,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 18:15:07,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:15:07,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 18:15:07,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-14 18:15:07,272 INFO L87 Difference]: Start difference. First operand 3967 states and 5569 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-14 18:15:16,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:15:18,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:15:20,596 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 18:15:25,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:15:25,030 INFO L93 Difference]: Finished difference Result 9390 states and 13677 transitions. [2021-12-14 18:15:25,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:15:25,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 156 [2021-12-14 18:15:25,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:15:25,061 INFO L225 Difference]: With dead ends: 9390 [2021-12-14 18:15:25,062 INFO L226 Difference]: Without dead ends: 5445 [2021-12-14 18:15:25,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:15:25,082 INFO L933 BasicCegarLoop]: 2852 mSDtfsCounter, 2187 mSDsluCounter, 8679 mSDsCounter, 0 mSdLazyCounter, 4939 mSolverCounterSat, 1862 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2253 SdHoareTripleChecker+Valid, 11531 SdHoareTripleChecker+Invalid, 6804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1862 IncrementalHoareTripleChecker+Valid, 4939 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:15:25,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2253 Valid, 11531 Invalid, 6804 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1862 Valid, 4939 Invalid, 3 Unknown, 0 Unchecked, 17.3s Time] [2021-12-14 18:15:25,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5445 states. [2021-12-14 18:15:25,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5445 to 3967. [2021-12-14 18:15:25,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3967 states, 2757 states have (on average 1.3166485310119695) internal successors, (3630), 2845 states have internal predecessors, (3630), 970 states have call successors, (970), 240 states have call predecessors, (970), 239 states have return successors, (967), 945 states have call predecessors, (967), 967 states have call successors, (967) [2021-12-14 18:15:25,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 5567 transitions. [2021-12-14 18:15:25,245 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 5567 transitions. Word has length 156 [2021-12-14 18:15:25,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:15:25,247 INFO L470 AbstractCegarLoop]: Abstraction has 3967 states and 5567 transitions. [2021-12-14 18:15:25,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-14 18:15:25,247 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 5567 transitions. [2021-12-14 18:15:25,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-14 18:15:25,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:15:25,254 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:25,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:15:25,255 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:15:25,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:15:25,255 INFO L85 PathProgramCache]: Analyzing trace with hash 749283438, now seen corresponding path program 1 times [2021-12-14 18:15:25,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:15:25,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457658051] [2021-12-14 18:15:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:15:25,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:15:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:15:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:15:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-14 18:15:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-14 18:15:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 18:15:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 18:15:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:15:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 18:15:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 18:15:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 18:15:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:15:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 18:15:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:15:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:15:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 18:15:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:15:25,760 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-14 18:15:25,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:15:25,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457658051] [2021-12-14 18:15:25,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457658051] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:15:25,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:15:25,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 18:15:25,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752661951] [2021-12-14 18:15:25,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:15:25,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 18:15:25,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:15:25,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 18:15:25,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-14 18:15:25,763 INFO L87 Difference]: Start difference. First operand 3967 states and 5567 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-14 18:15:29,534 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 []