./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 791161d1 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-?-791161d [2022-07-23 00:00:14,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:00:14,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:00:14,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:00:14,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:00:14,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:00:14,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:00:14,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:00:14,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:00:14,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:00:14,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:00:14,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:00:14,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:00:14,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:00:14,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:00:14,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:00:14,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:00:14,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:00:14,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:00:14,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:00:14,843 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:00:14,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:00:14,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:00:14,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:00:14,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:00:14,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:00:14,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:00:14,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:00:14,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:00:14,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:00:14,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:00:14,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:00:14,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:00:14,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:00:14,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:00:14,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:00:14,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:00:14,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:00:14,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:00:14,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:00:14,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:00:14,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:00:14,862 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:00:14,886 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:00:14,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:00:14,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:00:14,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:00:14,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:00:14,890 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:00:14,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:00:14,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:00:14,890 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:00:14,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:00:14,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:00:14,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:00:14,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:00:14,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:00:14,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:00:14,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:00:14,892 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:00:14,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:00:14,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:00:14,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:00:14,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:00:14,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:00:14,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:00:14,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:00:14,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:00:14,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:00:14,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:00:14,894 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:00:14,894 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:00:14,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:00:14,894 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2022-07-23 00:00:15,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:00:15,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:00:15,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:00:15,156 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:00:15,157 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:00:15,158 INFO L432 ainManager$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 [2022-07-23 00:00:15,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b89d012f/562f6923c4114045abfaef1b876176e4/FLAG1794fa8d4 [2022-07-23 00:00:15,943 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:00:15,944 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 [2022-07-23 00:00:15,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b89d012f/562f6923c4114045abfaef1b876176e4/FLAG1794fa8d4 [2022-07-23 00:00:16,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b89d012f/562f6923c4114045abfaef1b876176e4 [2022-07-23 00:00:16,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:00:16,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:00:16,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:00:16,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:00:16,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:00:16,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:00:16" (1/1) ... [2022-07-23 00:00:16,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba351a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:16, skipping insertion in model container [2022-07-23 00:00:16,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:00:16" (1/1) ... [2022-07-23 00:00:16,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:00:16,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:00:16,771 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-07-23 00:00:16,772 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] [2022-07-23 00:00:17,078 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] [2022-07-23 00:00:18,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:00:18,080 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:00:18,178 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-07-23 00:00:18,180 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] [2022-07-23 00:00:18,187 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] [2022-07-23 00:00:18,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:00:18,575 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:00:18,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:18 WrapperNode [2022-07-23 00:00:18,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:00:18,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:00:18,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:00:18,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:00:18,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:18" (1/1) ... [2022-07-23 00:00:18,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:18" (1/1) ... [2022-07-23 00:00:18,794 INFO L137 Inliner]: procedures = 286, calls = 2898, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5519 [2022-07-23 00:00:18,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:00:18,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:00:18,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:00:18,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:00:18,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:18" (1/1) ... [2022-07-23 00:00:18,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:18" (1/1) ... [2022-07-23 00:00:18,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:18" (1/1) ... [2022-07-23 00:00:18,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:18" (1/1) ... [2022-07-23 00:00:18,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:18" (1/1) ... [2022-07-23 00:00:19,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:18" (1/1) ... [2022-07-23 00:00:19,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:18" (1/1) ... [2022-07-23 00:00:19,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:00:19,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:00:19,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:00:19,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:00:19,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:18" (1/1) ... [2022-07-23 00:00:19,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:00:19,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:00:19,112 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) [2022-07-23 00:00:19,131 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 [2022-07-23 00:00:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-07-23 00:00:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-07-23 00:00:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:00:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-07-23 00:00:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-07-23 00:00:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:00:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:00:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:00:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 00:00:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 00:00:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2022-07-23 00:00:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2022-07-23 00:00:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 00:00:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 00:00:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2022-07-23 00:00:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2022-07-23 00:00:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:00:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:00:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-23 00:00:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2022-07-23 00:00:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2022-07-23 00:00:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:00:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:00:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-07-23 00:00:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-07-23 00:00:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 00:00:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 00:00:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:00:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:00:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 00:00:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 00:00:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-23 00:00:19,150 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-23 00:00:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2022-07-23 00:00:19,150 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2022-07-23 00:00:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 00:00:19,150 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 00:00:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2022-07-23 00:00:19,150 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2022-07-23 00:00:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-07-23 00:00:19,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-07-23 00:00:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2022-07-23 00:00:19,151 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2022-07-23 00:00:19,151 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2022-07-23 00:00:19,151 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2022-07-23 00:00:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-23 00:00:19,152 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-23 00:00:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-23 00:00:19,152 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-23 00:00:19,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:00:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-23 00:00:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2022-07-23 00:00:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2022-07-23 00:00:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2022-07-23 00:00:19,154 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2022-07-23 00:00:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2022-07-23 00:00:19,154 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2022-07-23 00:00:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:00:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-23 00:00:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-23 00:00:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2022-07-23 00:00:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2022-07-23 00:00:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-23 00:00:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 00:00:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 00:00:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:00:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-07-23 00:00:19,156 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-07-23 00:00:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:00:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-23 00:00:19,156 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-23 00:00:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-23 00:00:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-23 00:00:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-23 00:00:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-23 00:00:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2022-07-23 00:00:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2022-07-23 00:00:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 00:00:19,157 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 00:00:19,157 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 00:00:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 00:00:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 00:00:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-23 00:00:19,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-23 00:00:19,158 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2022-07-23 00:00:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2022-07-23 00:00:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-23 00:00:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-23 00:00:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2022-07-23 00:00:19,159 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2022-07-23 00:00:19,159 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2022-07-23 00:00:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2022-07-23 00:00:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-23 00:00:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-23 00:00:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 00:00:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-07-23 00:00:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-07-23 00:00:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2022-07-23 00:00:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2022-07-23 00:00:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 00:00:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2022-07-23 00:00:19,161 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2022-07-23 00:00:19,161 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 00:00:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 00:00:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2022-07-23 00:00:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2022-07-23 00:00:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-23 00:00:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-23 00:00:19,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 00:00:19,162 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 00:00:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2022-07-23 00:00:19,163 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2022-07-23 00:00:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-07-23 00:00:19,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-07-23 00:00:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 00:00:19,165 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 00:00:19,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-23 00:00:19,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-23 00:00:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-07-23 00:00:19,166 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-07-23 00:00:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 00:00:19,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 00:00:19,166 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2022-07-23 00:00:19,166 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2022-07-23 00:00:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2022-07-23 00:00:19,170 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2022-07-23 00:00:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 00:00:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2022-07-23 00:00:19,170 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2022-07-23 00:00:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2022-07-23 00:00:19,170 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2022-07-23 00:00:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 00:00:19,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 00:00:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2022-07-23 00:00:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2022-07-23 00:00:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2022-07-23 00:00:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2022-07-23 00:00:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2022-07-23 00:00:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2022-07-23 00:00:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:00:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-07-23 00:00:19,171 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-07-23 00:00:19,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:00:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:00:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 00:00:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-07-23 00:00:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-07-23 00:00:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 00:00:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 00:00:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2022-07-23 00:00:19,172 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2022-07-23 00:00:19,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-23 00:00:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-23 00:00:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-07-23 00:00:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-07-23 00:00:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2022-07-23 00:00:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2022-07-23 00:00:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-23 00:00:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-23 00:00:19,173 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-07-23 00:00:19,173 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-07-23 00:00:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2022-07-23 00:00:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2022-07-23 00:00:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-23 00:00:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-23 00:00:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2022-07-23 00:00:19,174 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2022-07-23 00:00:19,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 00:00:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2022-07-23 00:00:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2022-07-23 00:00:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2022-07-23 00:00:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2022-07-23 00:00:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-07-23 00:00:19,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-07-23 00:00:19,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:00:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:00:19,941 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:00:19,945 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:00:20,114 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:00:26,913 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-23 00:00:27,986 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; [2022-07-23 00:00:27,986 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; [2022-07-23 00:00:33,255 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:00:33,278 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:00:33,278 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 00:00:33,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:00:33 BoogieIcfgContainer [2022-07-23 00:00:33,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:00:33,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:00:33,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:00:33,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:00:33,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:00:16" (1/3) ... [2022-07-23 00:00:33,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c37156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:00:33, skipping insertion in model container [2022-07-23 00:00:33,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:00:18" (2/3) ... [2022-07-23 00:00:33,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c37156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:00:33, skipping insertion in model container [2022-07-23 00:00:33,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:00:33" (3/3) ... [2022-07-23 00:00:33,292 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 [2022-07-23 00:00:33,302 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:00:33,303 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:00:33,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:00:33,367 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@2810b09d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@547dcb87 [2022-07-23 00:00:33,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:00:33,377 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) [2022-07-23 00:00:33,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-23 00:00:33,392 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:00:33,393 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] [2022-07-23 00:00:33,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:00:33,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:00:33,399 INFO L85 PathProgramCache]: Analyzing trace with hash -692835284, now seen corresponding path program 1 times [2022-07-23 00:00:33,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:00:33,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950340112] [2022-07-23 00:00:33,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:00:33,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:00:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:34,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:00:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:34,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:00:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:34,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:00:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:34,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:00:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:34,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:00:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:34,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:00:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:34,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:00:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:34,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:00:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:34,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:00:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:34,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:00:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:34,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-23 00:00:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:34,128 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-23 00:00:34,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:00:34,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950340112] [2022-07-23 00:00:34,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950340112] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:00:34,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:00:34,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 00:00:34,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556572462] [2022-07-23 00:00:34,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:00:34,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 00:00:34,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:00:34,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 00:00:34,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 00:00:34,165 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) [2022-07-23 00:00:36,526 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 [] [2022-07-23 00:00:47,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:00:47,442 INFO L93 Difference]: Finished difference Result 5002 states and 7502 transitions. [2022-07-23 00:00:47,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 00:00:47,446 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 [2022-07-23 00:00:47,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:00:47,487 INFO L225 Difference]: With dead ends: 5002 [2022-07-23 00:00:47,487 INFO L226 Difference]: Without dead ends: 3281 [2022-07-23 00:00:47,503 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 [2022-07-23 00:00:47,505 INFO L413 NwaCegarLoop]: 2683 mSDtfsCounter, 2741 mSDsluCounter, 3001 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 803 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2997 SdHoareTripleChecker+Valid, 5684 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:00:47,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2997 Valid, 5684 Invalid, 2376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [803 Valid, 1572 Invalid, 1 Unknown, 0 Unchecked, 12.6s Time] [2022-07-23 00:00:47,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2022-07-23 00:00:47,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 3170. [2022-07-23 00:00:47,700 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) [2022-07-23 00:00:47,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 4598 transitions. [2022-07-23 00:00:47,726 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 4598 transitions. Word has length 86 [2022-07-23 00:00:47,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:00:47,728 INFO L495 AbstractCegarLoop]: Abstraction has 3170 states and 4598 transitions. [2022-07-23 00:00:47,730 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) [2022-07-23 00:00:47,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 4598 transitions. [2022-07-23 00:00:47,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-23 00:00:47,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:00:47,738 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] [2022-07-23 00:00:47,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 00:00:47,738 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:00:47,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:00:47,739 INFO L85 PathProgramCache]: Analyzing trace with hash 2110448072, now seen corresponding path program 1 times [2022-07-23 00:00:47,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:00:47,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440333041] [2022-07-23 00:00:47,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:00:47,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:00:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:48,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:00:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:48,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:00:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:48,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:00:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:48,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:00:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:48,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:00:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:48,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:00:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:48,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:00:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:48,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:00:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:48,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:00:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:48,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:00:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-23 00:00:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:00:48,318 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-23 00:00:48,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:00:48,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440333041] [2022-07-23 00:00:48,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440333041] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:00:48,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:00:48,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:00:48,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207276100] [2022-07-23 00:00:48,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:00:48,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:00:48,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:00:48,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:00:48,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:00:48,322 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) [2022-07-23 00:00:50,945 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 [] [2022-07-23 00:01:17,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:01:17,092 INFO L93 Difference]: Finished difference Result 16106 states and 24451 transitions. [2022-07-23 00:01:17,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:01:17,093 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 [2022-07-23 00:01:17,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:01:17,173 INFO L225 Difference]: With dead ends: 16106 [2022-07-23 00:01:17,173 INFO L226 Difference]: Without dead ends: 12960 [2022-07-23 00:01:17,200 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 [2022-07-23 00:01:17,200 INFO L413 NwaCegarLoop]: 3539 mSDtfsCounter, 10300 mSDsluCounter, 5961 mSDsCounter, 0 mSdLazyCounter, 4391 mSolverCounterSat, 3194 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10994 SdHoareTripleChecker+Valid, 9500 SdHoareTripleChecker+Invalid, 7586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3194 IncrementalHoareTripleChecker+Valid, 4391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:01:17,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10994 Valid, 9500 Invalid, 7586 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3194 Valid, 4391 Invalid, 1 Unknown, 0 Unchecked, 27.4s Time] [2022-07-23 00:01:17,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12960 states. [2022-07-23 00:01:17,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12960 to 12554. [2022-07-23 00:01:17,729 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) [2022-07-23 00:01:17,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12554 states to 12554 states and 18636 transitions. [2022-07-23 00:01:17,777 INFO L78 Accepts]: Start accepts. Automaton has 12554 states and 18636 transitions. Word has length 97 [2022-07-23 00:01:17,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:01:17,780 INFO L495 AbstractCegarLoop]: Abstraction has 12554 states and 18636 transitions. [2022-07-23 00:01:17,780 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) [2022-07-23 00:01:17,780 INFO L276 IsEmpty]: Start isEmpty. Operand 12554 states and 18636 transitions. [2022-07-23 00:01:17,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-23 00:01:17,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:01:17,784 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] [2022-07-23 00:01:17,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 00:01:17,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:01:17,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:01:17,785 INFO L85 PathProgramCache]: Analyzing trace with hash 409515402, now seen corresponding path program 1 times [2022-07-23 00:01:17,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:01:17,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809920430] [2022-07-23 00:01:17,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:01:17,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:01:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:18,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:01:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:18,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:01:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:18,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:01:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:18,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:01:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:18,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:01:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:18,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:01:18,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:18,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:01:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:01:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:18,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:01:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:18,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:01:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:18,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-23 00:01:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:18,205 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-23 00:01:18,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:01:18,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809920430] [2022-07-23 00:01:18,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809920430] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:01:18,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:01:18,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:01:18,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294018888] [2022-07-23 00:01:18,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:01:18,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:01:18,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:01:18,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:01:18,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:01:18,206 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) [2022-07-23 00:01:20,702 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 [] [2022-07-23 00:01:27,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:01:54,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:01:54,592 INFO L93 Difference]: Finished difference Result 64140 states and 102067 transitions. [2022-07-23 00:01:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:01:54,593 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 [2022-07-23 00:01:54,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:01:54,909 INFO L225 Difference]: With dead ends: 64140 [2022-07-23 00:01:54,910 INFO L226 Difference]: Without dead ends: 51610 [2022-07-23 00:01:55,014 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 [2022-07-23 00:01:55,021 INFO L413 NwaCegarLoop]: 3415 mSDtfsCounter, 7289 mSDsluCounter, 8598 mSDsCounter, 0 mSdLazyCounter, 6001 mSolverCounterSat, 1693 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7987 SdHoareTripleChecker+Valid, 12013 SdHoareTripleChecker+Invalid, 7695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1693 IncrementalHoareTripleChecker+Valid, 6001 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:01:55,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7987 Valid, 12013 Invalid, 7695 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1693 Valid, 6001 Invalid, 1 Unknown, 0 Unchecked, 34.4s Time] [2022-07-23 00:01:55,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51610 states. [2022-07-23 00:01:56,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51610 to 50082. [2022-07-23 00:01:56,751 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) [2022-07-23 00:01:57,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50082 states to 50082 states and 77490 transitions. [2022-07-23 00:01:57,325 INFO L78 Accepts]: Start accepts. Automaton has 50082 states and 77490 transitions. Word has length 98 [2022-07-23 00:01:57,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:01:57,328 INFO L495 AbstractCegarLoop]: Abstraction has 50082 states and 77490 transitions. [2022-07-23 00:01:57,328 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) [2022-07-23 00:01:57,328 INFO L276 IsEmpty]: Start isEmpty. Operand 50082 states and 77490 transitions. [2022-07-23 00:01:57,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-23 00:01:57,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:01:57,333 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] [2022-07-23 00:01:57,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 00:01:57,333 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:01:57,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:01:57,334 INFO L85 PathProgramCache]: Analyzing trace with hash 7251858, now seen corresponding path program 1 times [2022-07-23 00:01:57,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:01:57,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006195763] [2022-07-23 00:01:57,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:01:57,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:01:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:57,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:01:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:57,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:01:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:57,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:01:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:57,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:01:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:57,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:01:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:57,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:01:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:57,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:01:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:57,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:01:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:57,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:01:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:57,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:01:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:57,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-23 00:01:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:01:57,950 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-23 00:01:57,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:01:57,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006195763] [2022-07-23 00:01:57,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006195763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:01:57,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:01:57,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:01:57,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81335385] [2022-07-23 00:01:57,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:01:57,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:01:57,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:01:57,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:01:57,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:01:57,954 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) [2022-07-23 00:02:00,485 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 [] [2022-07-23 00:02:31,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:02:31,807 INFO L93 Difference]: Finished difference Result 255924 states and 449303 transitions. [2022-07-23 00:02:31,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:02:31,808 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 [2022-07-23 00:02:31,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:02:33,756 INFO L225 Difference]: With dead ends: 255924 [2022-07-23 00:02:33,757 INFO L226 Difference]: Without dead ends: 205866 [2022-07-23 00:02:34,355 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 [2022-07-23 00:02:34,358 INFO L413 NwaCegarLoop]: 3520 mSDtfsCounter, 8595 mSDsluCounter, 7607 mSDsCounter, 0 mSdLazyCounter, 4952 mSolverCounterSat, 1927 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9295 SdHoareTripleChecker+Valid, 11127 SdHoareTripleChecker+Invalid, 6880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1927 IncrementalHoareTripleChecker+Valid, 4952 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2022-07-23 00:02:34,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9295 Valid, 11127 Invalid, 6880 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1927 Valid, 4952 Invalid, 1 Unknown, 0 Unchecked, 27.5s Time] [2022-07-23 00:02:34,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205866 states. [2022-07-23 00:02:42,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205866 to 199774. [2022-07-23 00:02:42,693 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) [2022-07-23 00:02:44,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199774 states to 199774 states and 336384 transitions. [2022-07-23 00:02:45,022 INFO L78 Accepts]: Start accepts. Automaton has 199774 states and 336384 transitions. Word has length 96 [2022-07-23 00:02:45,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:02:45,022 INFO L495 AbstractCegarLoop]: Abstraction has 199774 states and 336384 transitions. [2022-07-23 00:02:45,023 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) [2022-07-23 00:02:45,023 INFO L276 IsEmpty]: Start isEmpty. Operand 199774 states and 336384 transitions. [2022-07-23 00:02:45,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-23 00:02:45,025 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:02:45,025 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] [2022-07-23 00:02:45,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 00:02:45,025 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:02:45,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:02:45,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1039671616, now seen corresponding path program 1 times [2022-07-23 00:02:45,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:02:45,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090632955] [2022-07-23 00:02:45,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:02:45,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:02:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:02:45,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:02:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:02:45,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:02:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:02:45,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:02:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:02:45,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:02:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:02:45,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:02:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:02:45,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:02:45,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:02:45,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:02:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:02:45,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:02:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:02:45,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:02:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:02:45,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:02:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:02:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-23 00:02:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:02:45,639 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-23 00:02:45,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:02:45,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090632955] [2022-07-23 00:02:45,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090632955] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:02:45,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:02:45,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:02:45,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321337151] [2022-07-23 00:02:45,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:02:45,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:02:45,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:02:45,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:02:45,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:02:45,640 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) [2022-07-23 00:02:48,151 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 []