./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.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-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.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 4bbc89768c1756f5fd8f2614e188ba9760b890a82deece54a04c4b385a5749d3 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:47:07,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:47:07,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:47:07,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:47:07,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:47:07,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:47:07,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:47:07,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:47:07,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:47:07,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:47:07,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:47:07,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:47:07,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:47:07,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:47:07,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:47:07,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:47:07,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:47:07,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:47:07,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:47:07,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:47:07,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:47:07,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:47:07,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:47:07,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:47:07,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:47:07,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:47:07,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:47:07,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:47:07,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:47:07,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:47:07,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:47:07,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:47:07,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:47:07,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:47:07,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:47:07,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:47:07,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:47:07,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:47:07,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:47:07,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:47:07,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:47:07,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:47:07,482 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:47:07,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:47:07,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:47:07,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:47:07,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:47:07,484 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:47:07,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:47:07,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:47:07,485 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:47:07,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:47:07,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:47:07,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:47:07,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:47:07,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:47:07,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:47:07,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:47:07,486 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:47:07,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:47:07,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:47:07,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:47:07,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:47:07,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:47:07,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:47:07,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:47:07,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:47:07,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:47:07,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:47:07,488 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:47:07,488 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:47:07,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:47:07,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:47:07,489 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bbc89768c1756f5fd8f2614e188ba9760b890a82deece54a04c4b385a5749d3 [2021-12-14 17:47:07,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:47:07,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:47:07,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:47:07,717 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:47:07,718 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:47:07,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i [2021-12-14 17:47:07,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73f88944/c35aa6f505fb4569b6edef69177f28fc/FLAG15a429028 [2021-12-14 17:47:08,440 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:47:08,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i [2021-12-14 17:47:08,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73f88944/c35aa6f505fb4569b6edef69177f28fc/FLAG15a429028 [2021-12-14 17:47:08,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e73f88944/c35aa6f505fb4569b6edef69177f28fc [2021-12-14 17:47:08,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:47:08,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:47:08,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:47:08,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:47:08,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:47:08,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:47:08" (1/1) ... [2021-12-14 17:47:08,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff8512e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:08, skipping insertion in model container [2021-12-14 17:47:08,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:47:08" (1/1) ... [2021-12-14 17:47:08,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:47:08,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:47:09,242 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4296] [2021-12-14 17:47:09,243 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4297-4298] [2021-12-14 17:47:09,543 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i[135082,135095] [2021-12-14 17:47:10,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:47:10,724 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:47:10,800 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4296] [2021-12-14 17:47:10,802 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4297-4298] [2021-12-14 17:47:10,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i[135082,135095] [2021-12-14 17:47:11,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:47:11,149 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:47:11,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:11 WrapperNode [2021-12-14 17:47:11,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:47:11,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:47:11,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:47:11,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:47:11,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:11" (1/1) ... [2021-12-14 17:47:11,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:11" (1/1) ... [2021-12-14 17:47:11,473 INFO L137 Inliner]: procedures = 362, calls = 6469, calls flagged for inlining = 182, calls inlined = 134, statements flattened = 9215 [2021-12-14 17:47:11,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:47:11,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:47:11,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:47:11,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:47:11,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:11" (1/1) ... [2021-12-14 17:47:11,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:11" (1/1) ... [2021-12-14 17:47:11,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:11" (1/1) ... [2021-12-14 17:47:11,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:11" (1/1) ... [2021-12-14 17:47:11,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:11" (1/1) ... [2021-12-14 17:47:11,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:11" (1/1) ... [2021-12-14 17:47:11,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:11" (1/1) ... [2021-12-14 17:47:11,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:47:11,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:47:11,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:47:11,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:47:11,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:11" (1/1) ... [2021-12-14 17:47:11,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:47:11,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:47:11,757 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 17:47:11,766 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 17:47:11,783 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-14 17:47:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-14 17:47:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure blk_stop_queue [2021-12-14 17:47:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_stop_queue [2021-12-14 17:47:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_pcie_error_reporting [2021-12-14 17:47:11,784 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_pcie_error_reporting [2021-12-14 17:47:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-14 17:47:11,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:47:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:47:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure skd_skdev_state_to_str [2021-12-14 17:47:11,785 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_skdev_state_to_str [2021-12-14 17:47:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-14 17:47:11,785 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-14 17:47:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:47:11,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:47:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure skd_quiesce_dev [2021-12-14 17:47:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_quiesce_dev [2021-12-14 17:47:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-14 17:47:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-14 17:47:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 17:47:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 17:47:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 17:47:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 17:47:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:47:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:47:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure skd_cons_sg_list [2021-12-14 17:47:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_cons_sg_list [2021-12-14 17:47:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_device [2021-12-14 17:47:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_device [2021-12-14 17:47:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-14 17:47:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-14 17:47:11,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:47:11,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:47:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure skd_postop_sg_list [2021-12-14 17:47:11,788 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_postop_sg_list [2021-12-14 17:47:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 17:47:11,788 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 17:47:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_sectors [2021-12-14 17:47:11,788 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_sectors [2021-12-14 17:47:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure skd_log_skreq [2021-12-14 17:47:11,788 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_log_skreq [2021-12-14 17:47:11,788 INFO L130 BoogieDeclarations]: Found specification of procedure queue_flag_set_unlocked [2021-12-14 17:47:11,789 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_flag_set_unlocked [2021-12-14 17:47:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-12-14 17:47:11,789 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-12-14 17:47:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:47:11,789 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:47:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure skd_disable_interrupts [2021-12-14 17:47:11,789 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_disable_interrupts [2021-12-14 17:47:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:47:11,790 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:47:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-14 17:47:11,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-14 17:47:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-14 17:47:11,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-14 17:47:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_remove [2021-12-14 17:47:11,790 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_remove [2021-12-14 17:47:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_fault [2021-12-14 17:47:11,790 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_fault [2021-12-14 17:47:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure skd_isr_fwstate [2021-12-14 17:47:11,791 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_isr_fwstate [2021-12-14 17:47:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-14 17:47:11,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-14 17:47:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_pos [2021-12-14 17:47:11,791 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_pos [2021-12-14 17:47:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:47:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 17:47:11,792 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 17:47:11,792 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_disappeared [2021-12-14 17:47:11,792 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_disappeared [2021-12-14 17:47:11,792 INFO L130 BoogieDeclarations]: Found specification of procedure skd_sg_io_copy_buffer [2021-12-14 17:47:11,792 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_sg_io_copy_buffer [2021-12-14 17:47:11,792 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-14 17:47:11,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-14 17:47:11,792 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-12-14 17:47:11,793 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-12-14 17:47:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:47:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-14 17:47:11,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-14 17:47:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write64 [2021-12-14 17:47:11,793 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write64 [2021-12-14 17:47:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-14 17:47:11,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-14 17:47:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-12-14 17:47:11,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-12-14 17:47:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:47:11,794 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:47:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-12-14 17:47:11,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-12-14 17:47:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:47:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-14 17:47:11,794 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-14 17:47:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:47:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-14 17:47:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-14 17:47:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-12-14 17:47:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-12-14 17:47:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-12-14 17:47:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 17:47:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 17:47:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure skd_soft_reset [2021-12-14 17:47:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_soft_reset [2021-12-14 17:47:11,796 INFO L130 BoogieDeclarations]: Found specification of procedure skd_start_timer [2021-12-14 17:47:11,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_start_timer [2021-12-14 17:47:11,796 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_write32 [2021-12-14 17:47:11,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_write32 [2021-12-14 17:47:11,796 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-12-14 17:47:11,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-12-14 17:47:11,796 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-12-14 17:47:11,796 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-12-14 17:47:11,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:47:11,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:47:11,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:47:11,797 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-14 17:47:11,797 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-14 17:47:11,797 INFO L130 BoogieDeclarations]: Found specification of procedure blk_requeue_request [2021-12-14 17:47:11,797 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_requeue_request [2021-12-14 17:47:11,797 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 17:47:11,797 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 17:47:11,798 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-12-14 17:47:11,798 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-12-14 17:47:11,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:47:11,798 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-12-14 17:47:11,798 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-12-14 17:47:11,798 INFO L130 BoogieDeclarations]: Found specification of procedure skd_restart_device [2021-12-14 17:47:11,798 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_restart_device [2021-12-14 17:47:11,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:47:11,799 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-12-14 17:47:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-12-14 17:47:11,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:47:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:47:11,799 INFO L130 BoogieDeclarations]: Found specification of procedure skd_reg_read32 [2021-12-14 17:47:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_reg_read32 [2021-12-14 17:47:11,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 17:47:11,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 17:47:11,799 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-14 17:47:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-14 17:47:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-14 17:47:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-14 17:47:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-14 17:47:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-14 17:47:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2021-12-14 17:47:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2021-12-14 17:47:11,800 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:47:11,800 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:47:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-14 17:47:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-14 17:47:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:47:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 17:47:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 17:47:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-12-14 17:47:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-12-14 17:47:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_internal_skspcl [2021-12-14 17:47:11,801 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_internal_skspcl [2021-12-14 17:47:11,801 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_special [2021-12-14 17:47:11,802 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_special [2021-12-14 17:47:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:47:11,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:47:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2021-12-14 17:47:11,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2021-12-14 17:47:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_irq [2021-12-14 17:47:11,802 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_irq [2021-12-14 17:47:11,802 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-12-14 17:47:11,802 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-12-14 17:47:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure skd_free_sg_list [2021-12-14 17:47:11,803 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_free_sg_list [2021-12-14 17:47:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure skd_destruct [2021-12-14 17:47:11,803 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_destruct [2021-12-14 17:47:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure skd_drive_state_to_str [2021-12-14 17:47:11,803 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_drive_state_to_str [2021-12-14 17:47:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:47:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-14 17:47:11,803 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-14 17:47:11,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:47:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure skd_send_special_fitmsg [2021-12-14 17:47:11,804 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_send_special_fitmsg [2021-12-14 17:47:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-14 17:47:11,804 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-14 17:47:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:47:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request_all [2021-12-14 17:47:11,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request_all [2021-12-14 17:47:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 17:47:11,804 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-14 17:47:11,805 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-14 17:47:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-14 17:47:11,805 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-14 17:47:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-14 17:47:11,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-14 17:47:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 17:47:11,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 17:47:11,805 INFO L130 BoogieDeclarations]: Found specification of procedure skd_name [2021-12-14 17:47:11,805 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_name [2021-12-14 17:47:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-14 17:47:11,806 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-14 17:47:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure skd_release_msix [2021-12-14 17:47:11,806 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_release_msix [2021-12-14 17:47:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure skd_end_request [2021-12-14 17:47:11,806 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_end_request [2021-12-14 17:47:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure skd_recover_requests [2021-12-14 17:47:11,806 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_recover_requests [2021-12-14 17:47:11,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-14 17:47:11,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-14 17:47:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 17:47:11,807 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 17:47:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure devm_free_irq [2021-12-14 17:47:11,807 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_free_irq [2021-12-14 17:47:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-14 17:47:11,807 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-14 17:47:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2021-12-14 17:47:11,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2021-12-14 17:47:11,807 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-14 17:47:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-14 17:47:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-14 17:47:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-14 17:47:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-14 17:47:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-14 17:47:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-14 17:47:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-14 17:47:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure skd_pci_shutdown [2021-12-14 17:47:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_pci_shutdown [2021-12-14 17:47:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-14 17:47:11,809 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-14 17:47:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:47:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure skd_stop_device [2021-12-14 17:47:11,809 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_stop_device [2021-12-14 17:47:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure skd_acquire_irq [2021-12-14 17:47:11,809 INFO L138 BoogieDeclarations]: Found implementation of procedure skd_acquire_irq [2021-12-14 17:47:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-14 17:47:11,809 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-14 17:47:11,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:47:11,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:47:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-12-14 17:47:11,810 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-12-14 17:47:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2021-12-14 17:47:11,810 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2021-12-14 17:47:12,498 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:47:12,500 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:47:12,753 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:47:12,871 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440: assume __copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-14 17:47:12,872 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := __copy_to_user_nocheck_#t~switch284#1 || 4 == __copy_to_user_nocheck_~size#1; [2021-12-14 17:47:12,872 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5467: SUMMARY for call __copy_to_user_nocheck_#t~ret286#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2021-12-14 17:47:12,872 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5467-1: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret286#1 && __copy_to_user_nocheck_#t~ret286#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~7#1 := __copy_to_user_nocheck_#t~ret286#1;havoc __copy_to_user_nocheck_#t~ret286#1; [2021-12-14 17:47:12,872 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5455: SUMMARY for call __copy_to_user_nocheck_#t~ret285#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~3#1 then 1 else 0), 0); srcloc: null [2021-12-14 17:47:12,872 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5455-1: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret285#1 && __copy_to_user_nocheck_#t~ret285#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~11#1 := __copy_to_user_nocheck_#t~ret285#1;havoc __copy_to_user_nocheck_#t~ret285#1; [2021-12-14 17:47:12,872 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-14 17:47:12,872 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := __copy_to_user_nocheck_#t~switch284#1 || 2 == __copy_to_user_nocheck_~size#1; [2021-12-14 17:47:12,872 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476: assume __copy_to_user_nocheck_#t~switch284#1; [2021-12-14 17:47:12,873 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476: assume !__copy_to_user_nocheck_#t~switch284#1; [2021-12-14 17:47:12,873 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5435: havoc __copy_to_user_nocheck_#t~switch284#1; [2021-12-14 17:47:12,873 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468: assume 0 != __copy_to_user_nocheck_~tmp___1~7#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-14 17:47:12,873 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468: assume !(0 != __copy_to_user_nocheck_~tmp___1~7#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-14 17:47:12,873 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464: assume __copy_to_user_nocheck_#t~switch284#1; [2021-12-14 17:47:12,873 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := true; [2021-12-14 17:47:12,873 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456: assume 0 != __copy_to_user_nocheck_~tmp___0~11#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-14 17:47:12,873 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456: assume !(0 != __copy_to_user_nocheck_~tmp___0~11#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-14 17:47:12,874 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452: assume __copy_to_user_nocheck_#t~switch284#1; [2021-12-14 17:47:12,874 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := __copy_to_user_nocheck_#t~switch284#1 || 16 == __copy_to_user_nocheck_~size#1; [2021-12-14 17:47:12,874 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448: assume __copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-14 17:47:12,874 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := __copy_to_user_nocheck_#t~switch284#1 || 10 == __copy_to_user_nocheck_~size#1; [2021-12-14 17:47:12,877 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5477: SUMMARY for call __copy_to_user_nocheck_#t~ret287#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2021-12-14 17:47:12,877 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444: assume __copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~3#1; [2021-12-14 17:47:12,877 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444: assume !__copy_to_user_nocheck_#t~switch284#1;__copy_to_user_nocheck_#t~switch284#1 := __copy_to_user_nocheck_#t~switch284#1 || 8 == __copy_to_user_nocheck_~size#1; [2021-12-14 17:47:12,877 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5477-1: __copy_to_user_nocheck_~tmp___2~3#1 := __copy_to_user_nocheck_#t~ret287#1;havoc __copy_to_user_nocheck_#t~ret287#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~3#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~3#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~3#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-12-14 17:47:14,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5362: havoc __copy_from_user_nocheck_#t~switch278#1; [2021-12-14 17:47:14,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5387: SUMMARY for call __copy_from_user_nocheck_#t~ret279#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-12-14 17:47:14,549 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5387-1: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret279#1 && __copy_from_user_nocheck_#t~ret279#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~10#1 := __copy_from_user_nocheck_#t~ret279#1;havoc __copy_from_user_nocheck_#t~ret279#1; [2021-12-14 17:47:14,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383: assume __copy_from_user_nocheck_#t~switch278#1; [2021-12-14 17:47:14,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := __copy_from_user_nocheck_#t~switch278#1 || 16 == __copy_from_user_nocheck_~size#1; [2021-12-14 17:47:14,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5400-1: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret280#1 && __copy_from_user_nocheck_#t~ret280#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~6#1 := __copy_from_user_nocheck_#t~ret280#1;havoc __copy_from_user_nocheck_#t~ret280#1; [2021-12-14 17:47:14,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5400: SUMMARY for call __copy_from_user_nocheck_#t~ret280#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2021-12-14 17:47:14,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396: assume __copy_from_user_nocheck_#t~switch278#1; [2021-12-14 17:47:14,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := true; [2021-12-14 17:47:14,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388: assume 0 != __copy_from_user_nocheck_~tmp___0~10#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-14 17:47:14,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388: assume !(0 != __copy_from_user_nocheck_~tmp___0~10#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-14 17:47:14,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409: assume __copy_from_user_nocheck_#t~switch278#1; [2021-12-14 17:47:14,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409: assume !__copy_from_user_nocheck_#t~switch278#1; [2021-12-14 17:47:14,550 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5401: assume 0 != __copy_from_user_nocheck_~tmp___1~6#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-14 17:47:14,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5401: assume !(0 != __copy_from_user_nocheck_~tmp___1~6#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-14 17:47:14,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume __copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-14 17:47:14,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := __copy_from_user_nocheck_#t~switch278#1 || 4 == __copy_from_user_nocheck_~size#1; [2021-12-14 17:47:14,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-14 17:47:14,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5410: SUMMARY for call __copy_from_user_nocheck_#t~ret281#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2021-12-14 17:47:14,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := __copy_from_user_nocheck_#t~switch278#1 || 2 == __copy_from_user_nocheck_~size#1; [2021-12-14 17:47:14,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5410-1: __copy_from_user_nocheck_~tmp___2~2#1 := __copy_from_user_nocheck_#t~ret281#1;havoc __copy_from_user_nocheck_#t~ret281#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~2#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-12-14 17:47:14,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373: assume __copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-14 17:47:14,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := __copy_from_user_nocheck_#t~switch278#1 || 8 == __copy_from_user_nocheck_~size#1; [2021-12-14 17:47:14,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378: assume __copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~2#1; [2021-12-14 17:47:14,551 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378: assume !__copy_from_user_nocheck_#t~switch278#1;__copy_from_user_nocheck_#t~switch278#1 := __copy_from_user_nocheck_#t~switch278#1 || 10 == __copy_from_user_nocheck_~size#1; [2021-12-14 17:47:19,991 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:47:20,004 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:47:20,005 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 17:47:20,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:47:20 BoogieIcfgContainer [2021-12-14 17:47:20,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:47:20,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:47:20,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:47:20,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:47:20,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:47:08" (1/3) ... [2021-12-14 17:47:20,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bca717e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:47:20, skipping insertion in model container [2021-12-14 17:47:20,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:47:11" (2/3) ... [2021-12-14 17:47:20,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bca717e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:47:20, skipping insertion in model container [2021-12-14 17:47:20,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:47:20" (3/3) ... [2021-12-14 17:47:20,014 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i [2021-12-14 17:47:20,018 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:47:20,018 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:47:20,060 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:47:20,071 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 17:47:20,071 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:47:20,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 2309 states, 1684 states have (on average 1.3640142517814726) internal successors, (2297), 1728 states have internal predecessors, (2297), 516 states have call successors, (516), 108 states have call predecessors, (516), 107 states have return successors, (511), 499 states have call predecessors, (511), 511 states have call successors, (511) [2021-12-14 17:47:20,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-14 17:47:20,131 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:47:20,132 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:47:20,132 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:47:20,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:47:20,135 INFO L85 PathProgramCache]: Analyzing trace with hash 799047285, now seen corresponding path program 1 times [2021-12-14 17:47:20,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:47:20,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156177218] [2021-12-14 17:47:20,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:47:20,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:47:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:20,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:47:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:20,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:47:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:20,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 17:47:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:20,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:47:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:20,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 17:47:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:20,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 17:47:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:20,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 17:47:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:20,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-14 17:47:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:20,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 17:47:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:20,832 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 17:47:20,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:47:20,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156177218] [2021-12-14 17:47:20,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156177218] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:47:20,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:47:20,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:47:20,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948457626] [2021-12-14 17:47:20,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:47:20,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:47:20,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:47:20,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:47:20,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:47:20,867 INFO L87 Difference]: Start difference. First operand has 2309 states, 1684 states have (on average 1.3640142517814726) internal successors, (2297), 1728 states have internal predecessors, (2297), 516 states have call successors, (516), 108 states have call predecessors, (516), 107 states have return successors, (511), 499 states have call predecessors, (511), 511 states have call successors, (511) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-14 17:47:23,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:47:31,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:47:31,474 INFO L93 Difference]: Finished difference Result 6204 states and 9077 transitions. [2021-12-14 17:47:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:47:31,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2021-12-14 17:47:31,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:47:31,514 INFO L225 Difference]: With dead ends: 6204 [2021-12-14 17:47:31,515 INFO L226 Difference]: Without dead ends: 3855 [2021-12-14 17:47:31,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:47:31,535 INFO L933 BasicCegarLoop]: 3493 mSDtfsCounter, 3382 mSDsluCounter, 5664 mSDsCounter, 0 mSdLazyCounter, 3335 mSolverCounterSat, 1904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3580 SdHoareTripleChecker+Valid, 9157 SdHoareTripleChecker+Invalid, 5239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1904 IncrementalHoareTripleChecker+Valid, 3335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-12-14 17:47:31,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3580 Valid, 9157 Invalid, 5239 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1904 Valid, 3335 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2021-12-14 17:47:31,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2021-12-14 17:47:31,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3536. [2021-12-14 17:47:31,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 2610 states have (on average 1.3689655172413793) internal successors, (3573), 2669 states have internal predecessors, (3573), 749 states have call successors, (749), 177 states have call predecessors, (749), 176 states have return successors, (748), 726 states have call predecessors, (748), 748 states have call successors, (748) [2021-12-14 17:47:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5070 transitions. [2021-12-14 17:47:31,794 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5070 transitions. Word has length 78 [2021-12-14 17:47:31,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:47:31,795 INFO L470 AbstractCegarLoop]: Abstraction has 3536 states and 5070 transitions. [2021-12-14 17:47:31,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-14 17:47:31,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5070 transitions. [2021-12-14 17:47:31,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-14 17:47:31,803 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:47:31,803 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:47:31,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:47:31,803 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:47:31,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:47:31,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1465883832, now seen corresponding path program 1 times [2021-12-14 17:47:31,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:47:31,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403751886] [2021-12-14 17:47:31,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:47:31,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:47:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:47:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:47:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 17:47:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:47:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 17:47:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 17:47:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 17:47:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 17:47:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 17:47:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 17:47:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-14 17:47:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-14 17:47:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:47:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:32,182 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-14 17:47:32,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:47:32,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403751886] [2021-12-14 17:47:32,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403751886] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:47:32,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:47:32,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:47:32,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093765410] [2021-12-14 17:47:32,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:47:32,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:47:32,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:47:32,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:47:32,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:47:32,189 INFO L87 Difference]: Start difference. First operand 3536 states and 5070 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 17:47:34,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:47:36,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:47:38,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:47:47,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:47:49,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:47:53,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:47:53,007 INFO L93 Difference]: Finished difference Result 10245 states and 14911 transitions. [2021-12-14 17:47:53,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 17:47:53,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2021-12-14 17:47:53,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:47:53,040 INFO L225 Difference]: With dead ends: 10245 [2021-12-14 17:47:53,040 INFO L226 Difference]: Without dead ends: 6728 [2021-12-14 17:47:53,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-14 17:47:53,055 INFO L933 BasicCegarLoop]: 4049 mSDtfsCounter, 5438 mSDsluCounter, 5889 mSDsCounter, 0 mSdLazyCounter, 6775 mSolverCounterSat, 3516 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5854 SdHoareTripleChecker+Valid, 9938 SdHoareTripleChecker+Invalid, 10292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3516 IncrementalHoareTripleChecker+Valid, 6775 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-12-14 17:47:53,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5854 Valid, 9938 Invalid, 10292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3516 Valid, 6775 Invalid, 1 Unknown, 0 Unchecked, 20.3s Time] [2021-12-14 17:47:53,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6728 states. [2021-12-14 17:47:53,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6728 to 6101. [2021-12-14 17:47:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6101 states, 4485 states have (on average 1.3683389074693422) internal successors, (6137), 4602 states have internal predecessors, (6137), 1298 states have call successors, (1298), 318 states have call predecessors, (1298), 317 states have return successors, (1297), 1252 states have call predecessors, (1297), 1297 states have call successors, (1297) [2021-12-14 17:47:53,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 8732 transitions. [2021-12-14 17:47:53,299 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 8732 transitions. Word has length 119 [2021-12-14 17:47:53,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:47:53,301 INFO L470 AbstractCegarLoop]: Abstraction has 6101 states and 8732 transitions. [2021-12-14 17:47:53,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 17:47:53,303 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 8732 transitions. [2021-12-14 17:47:53,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-14 17:47:53,309 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:47:53,309 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:47:53,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:47:53,310 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:47:53,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:47:53,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1870804088, now seen corresponding path program 1 times [2021-12-14 17:47:53,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:47:53,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66771567] [2021-12-14 17:47:53,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:47:53,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:47:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:53,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:47:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:53,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:47:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:53,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 17:47:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:53,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:47:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:53,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 17:47:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:53,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 17:47:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:53,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 17:47:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:53,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 17:47:53,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:53,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 17:47:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:53,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 17:47:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:53,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 17:47:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:47:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-14 17:47:53,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:47:53,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66771567] [2021-12-14 17:47:53,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66771567] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:47:53,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:47:53,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:47:53,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535552318] [2021-12-14 17:47:53,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:47:53,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:47:53,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:47:53,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:47:53,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:47:53,647 INFO L87 Difference]: Start difference. First operand 6101 states and 8732 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 17:47:55,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:48:01,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:48:03,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:48:03,331 INFO L93 Difference]: Finished difference Result 12789 states and 18540 transitions. [2021-12-14 17:48:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:48:03,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2021-12-14 17:48:03,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:48:03,359 INFO L225 Difference]: With dead ends: 12789 [2021-12-14 17:48:03,359 INFO L226 Difference]: Without dead ends: 6711 [2021-12-14 17:48:03,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-14 17:48:03,379 INFO L933 BasicCegarLoop]: 3115 mSDtfsCounter, 3995 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 1443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4382 SdHoareTripleChecker+Valid, 5824 SdHoareTripleChecker+Invalid, 3602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1443 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:48:03,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4382 Valid, 5824 Invalid, 3602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1443 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2021-12-14 17:48:03,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6711 states. [2021-12-14 17:48:03,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6711 to 6101. [2021-12-14 17:48:03,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6101 states, 4485 states have (on average 1.3674470457079153) internal successors, (6133), 4602 states have internal predecessors, (6133), 1298 states have call successors, (1298), 318 states have call predecessors, (1298), 317 states have return successors, (1297), 1252 states have call predecessors, (1297), 1297 states have call successors, (1297) [2021-12-14 17:48:03,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6101 states to 6101 states and 8728 transitions. [2021-12-14 17:48:03,571 INFO L78 Accepts]: Start accepts. Automaton has 6101 states and 8728 transitions. Word has length 116 [2021-12-14 17:48:03,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:48:03,572 INFO L470 AbstractCegarLoop]: Abstraction has 6101 states and 8728 transitions. [2021-12-14 17:48:03,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 17:48:03,572 INFO L276 IsEmpty]: Start isEmpty. Operand 6101 states and 8728 transitions. [2021-12-14 17:48:03,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-14 17:48:03,577 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:48:03,577 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:48:03,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:48:03,578 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:48:03,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:48:03,578 INFO L85 PathProgramCache]: Analyzing trace with hash -983581242, now seen corresponding path program 1 times [2021-12-14 17:48:03,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:48:03,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117323033] [2021-12-14 17:48:03,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:48:03,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:48:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:03,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:48:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:48:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:03,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 17:48:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:03,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-14 17:48:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:03,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 17:48:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:03,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 17:48:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:03,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-14 17:48:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:03,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-14 17:48:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:03,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-14 17:48:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:03,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 17:48:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:03,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 17:48:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:48:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-14 17:48:03,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:48:03,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117323033] [2021-12-14 17:48:03,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117323033] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:48:03,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:48:03,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:48:03,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026256002] [2021-12-14 17:48:03,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:48:03,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:48:03,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:48:03,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:48:03,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:48:03,966 INFO L87 Difference]: Start difference. First operand 6101 states and 8728 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-14 17:48:07,857 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 []