./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-net--atm--lec.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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-net--atm--lec.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 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:46:19,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:46:19,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:46:19,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:46:19,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:46:19,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:46:19,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:46:19,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:46:19,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:46:19,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:46:19,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:46:19,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:46:19,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:46:19,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:46:19,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:46:19,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:46:19,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:46:19,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:46:19,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:46:19,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:46:19,639 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:46:19,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:46:19,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:46:19,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:46:19,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:46:19,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:46:19,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:46:19,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:46:19,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:46:19,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:46:19,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:46:19,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:46:19,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:46:19,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:46:19,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:46:19,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:46:19,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:46:19,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:46:19,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:46:19,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:46:19,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:46:19,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:46:19,671 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:46:19,712 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:46:19,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:46:19,715 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:46:19,715 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:46:19,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:46:19,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:46:19,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:46:19,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:46:19,718 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:46:19,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:46:19,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:46:19,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:46:19,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:46:19,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:46:19,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:46:19,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:46:19,720 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:46:19,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:46:19,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:46:19,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:46:19,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:46:19,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:46:19,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:46:19,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:46:19,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:46:19,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:46:19,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:46:19,725 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:46:19,725 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:46:19,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:46:19,726 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2022-07-19 23:46:20,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:46:20,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:46:20,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:46:20,073 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:46:20,074 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:46:20,076 INFO L432 ainManager$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-net--atm--lec.ko-entry_point.cil.out.i [2022-07-19 23:46:20,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e0fbe5d/7555fcdaf1314513b5586a6176be8299/FLAG11ea887ba [2022-07-19 23:46:21,132 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:46:21,133 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-net--atm--lec.ko-entry_point.cil.out.i [2022-07-19 23:46:21,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e0fbe5d/7555fcdaf1314513b5586a6176be8299/FLAG11ea887ba [2022-07-19 23:46:21,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e0fbe5d/7555fcdaf1314513b5586a6176be8299 [2022-07-19 23:46:21,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:46:21,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:46:21,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:46:21,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:46:21,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:46:21,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:46:21" (1/1) ... [2022-07-19 23:46:21,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4992434d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:21, skipping insertion in model container [2022-07-19 23:46:21,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:46:21" (1/1) ... [2022-07-19 23:46:21,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:46:21,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:46:22,298 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-07-19 23:46:22,299 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2022-07-19 23:46:23,137 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-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2022-07-19 23:46:24,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:46:24,217 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:46:24,333 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-07-19 23:46:24,335 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2022-07-19 23:46:24,350 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-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2022-07-19 23:46:24,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:46:24,795 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:46:24,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:24 WrapperNode [2022-07-19 23:46:24,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:46:24,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:46:24,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:46:24,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:46:24,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:24" (1/1) ... [2022-07-19 23:46:24,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:24" (1/1) ... [2022-07-19 23:46:25,126 INFO L137 Inliner]: procedures = 286, calls = 2898, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5519 [2022-07-19 23:46:25,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:46:25,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:46:25,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:46:25,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:46:25,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:24" (1/1) ... [2022-07-19 23:46:25,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:24" (1/1) ... [2022-07-19 23:46:25,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:24" (1/1) ... [2022-07-19 23:46:25,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:24" (1/1) ... [2022-07-19 23:46:25,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:24" (1/1) ... [2022-07-19 23:46:25,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:24" (1/1) ... [2022-07-19 23:46:25,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:24" (1/1) ... [2022-07-19 23:46:25,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:46:25,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:46:25,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:46:25,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:46:25,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:24" (1/1) ... [2022-07-19 23:46:25,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:46:25,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:46:25,477 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) [2022-07-19 23:46:25,499 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 [2022-07-19 23:46:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-07-19 23:46:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-07-19 23:46:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-19 23:46:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-07-19 23:46:25,512 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-07-19 23:46:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 23:46:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-19 23:46:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-19 23:46:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-19 23:46:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-19 23:46:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2022-07-19 23:46:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2022-07-19 23:46:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-19 23:46:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-19 23:46:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2022-07-19 23:46:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2022-07-19 23:46:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:46:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:46:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-19 23:46:25,514 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2022-07-19 23:46:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2022-07-19 23:46:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:46:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:46:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-07-19 23:46:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-07-19 23:46:25,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-19 23:46:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-19 23:46:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 23:46:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 23:46:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-19 23:46:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-19 23:46:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-19 23:46:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-19 23:46:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2022-07-19 23:46:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2022-07-19 23:46:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 23:46:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 23:46:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2022-07-19 23:46:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2022-07-19 23:46:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-07-19 23:46:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-07-19 23:46:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2022-07-19 23:46:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2022-07-19 23:46:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2022-07-19 23:46:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2022-07-19 23:46:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-19 23:46:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-19 23:46:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-19 23:46:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-19 23:46:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:46:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-19 23:46:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2022-07-19 23:46:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2022-07-19 23:46:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2022-07-19 23:46:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2022-07-19 23:46:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2022-07-19 23:46:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2022-07-19 23:46:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:46:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-19 23:46:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-19 23:46:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2022-07-19 23:46:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2022-07-19 23:46:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-19 23:46:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-19 23:46:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-19 23:46:25,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:46:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-07-19 23:46:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-07-19 23:46:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:46:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-19 23:46:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-19 23:46:25,522 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-19 23:46:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-19 23:46:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-19 23:46:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-19 23:46:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2022-07-19 23:46:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2022-07-19 23:46:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-19 23:46:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-19 23:46:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-19 23:46:25,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-19 23:46:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-19 23:46:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-19 23:46:25,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-19 23:46:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2022-07-19 23:46:25,524 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2022-07-19 23:46:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-19 23:46:25,525 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-19 23:46:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2022-07-19 23:46:25,525 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2022-07-19 23:46:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2022-07-19 23:46:25,525 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2022-07-19 23:46:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-19 23:46:25,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-19 23:46:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-19 23:46:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-07-19 23:46:25,526 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-07-19 23:46:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2022-07-19 23:46:25,526 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2022-07-19 23:46:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 23:46:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2022-07-19 23:46:25,527 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2022-07-19 23:46:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-19 23:46:25,527 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-19 23:46:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2022-07-19 23:46:25,527 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2022-07-19 23:46:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-19 23:46:25,528 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-19 23:46:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-19 23:46:25,528 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-19 23:46:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2022-07-19 23:46:25,528 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2022-07-19 23:46:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-07-19 23:46:25,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-07-19 23:46:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-19 23:46:25,529 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-19 23:46:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-19 23:46:25,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-19 23:46:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-07-19 23:46:25,529 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-07-19 23:46:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 23:46:25,530 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 23:46:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2022-07-19 23:46:25,530 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2022-07-19 23:46:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2022-07-19 23:46:25,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2022-07-19 23:46:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 23:46:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2022-07-19 23:46:25,531 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2022-07-19 23:46:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2022-07-19 23:46:25,531 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2022-07-19 23:46:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 23:46:25,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 23:46:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2022-07-19 23:46:25,532 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2022-07-19 23:46:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2022-07-19 23:46:25,532 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2022-07-19 23:46:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2022-07-19 23:46:25,532 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2022-07-19 23:46:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:46:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-07-19 23:46:25,533 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-07-19 23:46:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:46:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:46:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-19 23:46:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-07-19 23:46:25,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-07-19 23:46:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:46:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-19 23:46:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2022-07-19 23:46:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2022-07-19 23:46:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-19 23:46:25,534 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-19 23:46:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-07-19 23:46:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-07-19 23:46:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2022-07-19 23:46:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2022-07-19 23:46:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-19 23:46:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-19 23:46:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-07-19 23:46:25,535 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-07-19 23:46:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2022-07-19 23:46:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2022-07-19 23:46:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-19 23:46:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-19 23:46:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2022-07-19 23:46:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2022-07-19 23:46:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 23:46:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2022-07-19 23:46:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2022-07-19 23:46:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2022-07-19 23:46:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2022-07-19 23:46:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-07-19 23:46:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-07-19 23:46:25,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:46:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:46:26,266 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:46:26,269 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:46:26,471 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-19 23:46:33,618 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-19 23:46:36,170 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 != (lec_addr_delete_~____ptr___0~4#1.base + lec_addr_delete_~____ptr___0~4#1.offset) % 18446744073709551616);lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := 0, 0;lec_addr_delete_~entry~10#1.base, lec_addr_delete_~entry~10#1.offset := lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset; [2022-07-19 23:46:36,170 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 != (lec_addr_delete_~____ptr___0~4#1.base + lec_addr_delete_~____ptr___0~4#1.offset) % 18446744073709551616;lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset := lec_addr_delete_~____ptr___0~4#1.base, lec_addr_delete_~____ptr___0~4#1.offset;lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset; [2022-07-19 23:46:43,250 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:46:43,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:46:43,279 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 23:46:43,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:46:43 BoogieIcfgContainer [2022-07-19 23:46:43,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:46:43,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:46:43,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:46:43,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:46:43,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:46:21" (1/3) ... [2022-07-19 23:46:43,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6459b21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:46:43, skipping insertion in model container [2022-07-19 23:46:43,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:46:24" (2/3) ... [2022-07-19 23:46:43,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6459b21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:46:43, skipping insertion in model container [2022-07-19 23:46:43,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:46:43" (3/3) ... [2022-07-19 23:46:43,295 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2022-07-19 23:46:43,309 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:46:43,309 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:46:43,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:46:43,443 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@30c7fa46, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@222ec432 [2022-07-19 23:46:43,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:46:43,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 1671 states, 1231 states have (on average 1.3907392363931763) internal successors, (1712), 1271 states have internal predecessors, (1712), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) [2022-07-19 23:46:43,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-19 23:46:43,485 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:46:43,486 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:46:43,487 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:46:43,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:46:43,492 INFO L85 PathProgramCache]: Analyzing trace with hash -692835284, now seen corresponding path program 1 times [2022-07-19 23:46:43,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:46:43,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725514370] [2022-07-19 23:46:43,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:46:43,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:46:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:44,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:46:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:44,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:46:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:44,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:46:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:44,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:46:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:44,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:46:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:44,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:46:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:44,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:46:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:44,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:46:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:44,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:46:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:44,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:46:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:44,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-19 23:46:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:44,391 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-19 23:46:44,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:46:44,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725514370] [2022-07-19 23:46:44,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725514370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:46:44,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:46:44,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:46:44,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372121915] [2022-07-19 23:46:44,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:46:44,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:46:44,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:46:44,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:46:44,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:46:44,430 INFO L87 Difference]: Start difference. First operand has 1671 states, 1231 states have (on average 1.3907392363931763) internal successors, (1712), 1271 states have internal predecessors, (1712), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:46:47,012 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 [] [2022-07-19 23:46:57,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:46:57,933 INFO L93 Difference]: Finished difference Result 5002 states and 7502 transitions. [2022-07-19 23:46:57,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:46:57,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 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 86 [2022-07-19 23:46:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:46:57,995 INFO L225 Difference]: With dead ends: 5002 [2022-07-19 23:46:57,996 INFO L226 Difference]: Without dead ends: 3281 [2022-07-19 23:46:58,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:46:58,021 INFO L413 NwaCegarLoop]: 2680 mSDtfsCounter, 2741 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 803 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2997 SdHoareTripleChecker+Valid, 5675 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-07-19 23:46:58,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2997 Valid, 5675 Invalid, 2376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [803 Valid, 1572 Invalid, 1 Unknown, 0 Unchecked, 12.9s Time] [2022-07-19 23:46:58,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2022-07-19 23:46:58,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 3170. [2022-07-19 23:46:58,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 2350 states have (on average 1.387659574468085) internal successors, (3261), 2408 states have internal predecessors, (3261), 669 states have call successors, (669), 151 states have call predecessors, (669), 150 states have return successors, (668), 648 states have call predecessors, (668), 668 states have call successors, (668) [2022-07-19 23:46:58,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 4598 transitions. [2022-07-19 23:46:58,291 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 4598 transitions. Word has length 86 [2022-07-19 23:46:58,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:46:58,293 INFO L495 AbstractCegarLoop]: Abstraction has 3170 states and 4598 transitions. [2022-07-19 23:46:58,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:46:58,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 4598 transitions. [2022-07-19 23:46:58,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-19 23:46:58,302 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:46:58,302 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:46:58,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 23:46:58,303 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:46:58,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:46:58,304 INFO L85 PathProgramCache]: Analyzing trace with hash 2110448072, now seen corresponding path program 1 times [2022-07-19 23:46:58,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:46:58,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942686610] [2022-07-19 23:46:58,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:46:58,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:46:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:58,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:46:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:58,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:46:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:58,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:46:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:58,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:46:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:58,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:46:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:58,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:46:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:58,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:46:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:58,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:46:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:58,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:46:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:58,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:46:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:46:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:46:58,890 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-19 23:46:58,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:46:58,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942686610] [2022-07-19 23:46:58,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942686610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:46:58,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:46:58,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 23:46:58,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142661569] [2022-07-19 23:46:58,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:46:58,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 23:46:58,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:46:58,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 23:46:58,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:46:58,894 INFO L87 Difference]: Start difference. First operand 3170 states and 4598 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:47:01,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:47:06,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:47:26,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:47:26,853 INFO L93 Difference]: Finished difference Result 16106 states and 24451 transitions. [2022-07-19 23:47:26,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:47:26,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2022-07-19 23:47:26,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:47:26,942 INFO L225 Difference]: With dead ends: 16106 [2022-07-19 23:47:26,942 INFO L226 Difference]: Without dead ends: 12960 [2022-07-19 23:47:26,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-19 23:47:26,970 INFO L413 NwaCegarLoop]: 3539 mSDtfsCounter, 10300 mSDsluCounter, 5963 mSDsCounter, 0 mSdLazyCounter, 4391 mSolverCounterSat, 3199 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10996 SdHoareTripleChecker+Valid, 9502 SdHoareTripleChecker+Invalid, 7591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3199 IncrementalHoareTripleChecker+Valid, 4391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2022-07-19 23:47:26,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10996 Valid, 9502 Invalid, 7591 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3199 Valid, 4391 Invalid, 1 Unknown, 0 Unchecked, 26.9s Time] [2022-07-19 23:47:26,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12960 states. [2022-07-19 23:47:27,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12960 to 12554. [2022-07-19 23:47:27,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12554 states, 9307 states have (on average 1.3870205221876006) internal successors, (12909), 9541 states have internal predecessors, (12909), 2637 states have call successors, (2637), 598 states have call predecessors, (2637), 609 states have return successors, (3090), 2566 states have call predecessors, (3090), 2636 states have call successors, (3090) [2022-07-19 23:47:27,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12554 states to 12554 states and 18636 transitions. [2022-07-19 23:47:27,521 INFO L78 Accepts]: Start accepts. Automaton has 12554 states and 18636 transitions. Word has length 97 [2022-07-19 23:47:27,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:47:27,523 INFO L495 AbstractCegarLoop]: Abstraction has 12554 states and 18636 transitions. [2022-07-19 23:47:27,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:47:27,524 INFO L276 IsEmpty]: Start isEmpty. Operand 12554 states and 18636 transitions. [2022-07-19 23:47:27,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-19 23:47:27,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:47:27,528 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:47:27,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 23:47:27,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:47:27,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:47:27,530 INFO L85 PathProgramCache]: Analyzing trace with hash 409515402, now seen corresponding path program 1 times [2022-07-19 23:47:27,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:47:27,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514086321] [2022-07-19 23:47:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:47:27,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:47:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:27,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:47:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:27,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:47:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:27,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:47:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:27,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:47:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:27,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:47:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:27,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:47:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:27,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:47:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:27,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:47:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:27,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:47:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:28,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:47:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:28,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 23:47:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:47:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-19 23:47:28,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:47:28,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514086321] [2022-07-19 23:47:28,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514086321] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:47:28,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:47:28,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 23:47:28,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702918471] [2022-07-19 23:47:28,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:47:28,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 23:47:28,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:47:28,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 23:47:28,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:47:28,016 INFO L87 Difference]: Start difference. First operand 12554 states and 18636 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:47:30,620 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 [] [2022-07-19 23:48:01,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:48:01,772 INFO L93 Difference]: Finished difference Result 64140 states and 102067 transitions. [2022-07-19 23:48:01,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:48:01,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2022-07-19 23:48:01,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:48:02,370 INFO L225 Difference]: With dead ends: 64140 [2022-07-19 23:48:02,370 INFO L226 Difference]: Without dead ends: 51610 [2022-07-19 23:48:02,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-19 23:48:02,483 INFO L413 NwaCegarLoop]: 3416 mSDtfsCounter, 7289 mSDsluCounter, 8597 mSDsCounter, 0 mSdLazyCounter, 5998 mSolverCounterSat, 1692 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7985 SdHoareTripleChecker+Valid, 12013 SdHoareTripleChecker+Invalid, 7691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1692 IncrementalHoareTripleChecker+Valid, 5998 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:48:02,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7985 Valid, 12013 Invalid, 7691 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1692 Valid, 5998 Invalid, 1 Unknown, 0 Unchecked, 32.0s Time] [2022-07-19 23:48:02,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51610 states. [2022-07-19 23:48:04,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51610 to 50082. [2022-07-19 23:48:04,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50082 states, 37141 states have (on average 1.3857731348105866) internal successors, (51469), 38061 states have internal predecessors, (51469), 10491 states have call successors, (10491), 2386 states have call predecessors, (10491), 2449 states have return successors, (15530), 10242 states have call predecessors, (15530), 10490 states have call successors, (15530) [2022-07-19 23:48:05,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50082 states to 50082 states and 77490 transitions. [2022-07-19 23:48:05,223 INFO L78 Accepts]: Start accepts. Automaton has 50082 states and 77490 transitions. Word has length 98 [2022-07-19 23:48:05,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:48:05,225 INFO L495 AbstractCegarLoop]: Abstraction has 50082 states and 77490 transitions. [2022-07-19 23:48:05,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:48:05,226 INFO L276 IsEmpty]: Start isEmpty. Operand 50082 states and 77490 transitions. [2022-07-19 23:48:05,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 23:48:05,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:48:05,233 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:48:05,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 23:48:05,233 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:48:05,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:48:05,234 INFO L85 PathProgramCache]: Analyzing trace with hash 7251858, now seen corresponding path program 1 times [2022-07-19 23:48:05,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:48:05,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230770720] [2022-07-19 23:48:05,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:48:05,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:48:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:05,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:48:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:05,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:48:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:05,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:48:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:05,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:48:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:05,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:48:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:05,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:48:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:05,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:48:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:05,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:48:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:05,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:48:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:05,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:48:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:05,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 23:48:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:05,760 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-19 23:48:05,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:48:05,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230770720] [2022-07-19 23:48:05,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230770720] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:48:05,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:48:05,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 23:48:05,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509148185] [2022-07-19 23:48:05,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:48:05,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 23:48:05,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:48:05,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 23:48:05,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:48:05,764 INFO L87 Difference]: Start difference. First operand 50082 states and 77490 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:48:08,355 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 [] [2022-07-19 23:48:38,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:48:38,458 INFO L93 Difference]: Finished difference Result 255924 states and 449303 transitions. [2022-07-19 23:48:38,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:48:38,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2022-07-19 23:48:38,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:48:40,591 INFO L225 Difference]: With dead ends: 255924 [2022-07-19 23:48:40,591 INFO L226 Difference]: Without dead ends: 205866 [2022-07-19 23:48:41,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-07-19 23:48:41,121 INFO L413 NwaCegarLoop]: 3524 mSDtfsCounter, 8595 mSDsluCounter, 7611 mSDsCounter, 0 mSdLazyCounter, 4955 mSolverCounterSat, 1926 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9291 SdHoareTripleChecker+Valid, 11135 SdHoareTripleChecker+Invalid, 6882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1926 IncrementalHoareTripleChecker+Valid, 4955 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:48:41,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9291 Valid, 11135 Invalid, 6882 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1926 Valid, 4955 Invalid, 1 Unknown, 0 Unchecked, 27.0s Time] [2022-07-19 23:48:41,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205866 states. [2022-07-19 23:48:48,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205866 to 199774. [2022-07-19 23:48:49,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199774 states, 148269 states have (on average 1.3843554620318475) internal successors, (205257), 151745 states have internal predecessors, (205257), 41771 states have call successors, (41771), 9506 states have call predecessors, (41771), 9733 states have return successors, (89356), 40786 states have call predecessors, (89356), 41770 states have call successors, (89356) [2022-07-19 23:48:50,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199774 states to 199774 states and 336384 transitions. [2022-07-19 23:48:51,010 INFO L78 Accepts]: Start accepts. Automaton has 199774 states and 336384 transitions. Word has length 96 [2022-07-19 23:48:51,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:48:51,011 INFO L495 AbstractCegarLoop]: Abstraction has 199774 states and 336384 transitions. [2022-07-19 23:48:51,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:48:51,011 INFO L276 IsEmpty]: Start isEmpty. Operand 199774 states and 336384 transitions. [2022-07-19 23:48:51,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-19 23:48:51,013 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:48:51,013 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:48:51,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 23:48:51,014 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:48:51,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:48:51,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1039671616, now seen corresponding path program 1 times [2022-07-19 23:48:51,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:48:51,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050381516] [2022-07-19 23:48:51,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:48:51,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:48:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:51,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:48:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:51,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:48:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:51,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:48:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:51,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:48:51,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:51,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:48:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:51,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:48:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:51,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:48:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:51,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:48:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:51,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:48:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:51,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:48:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:51,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-19 23:48:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:48:51,442 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-19 23:48:51,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:48:51,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050381516] [2022-07-19 23:48:51,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050381516] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:48:51,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:48:51,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 23:48:51,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237240070] [2022-07-19 23:48:51,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:48:51,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 23:48:51,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:48:51,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 23:48:51,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-19 23:48:51,447 INFO L87 Difference]: Start difference. First operand 199774 states and 336384 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-19 23:48:53,921 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 []