./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 35987657 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-?-3598765 [2022-07-21 11:17:52,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:17:52,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:17:52,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:17:52,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:17:52,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:17:52,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:17:52,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:17:52,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:17:52,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:17:52,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:17:52,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:17:52,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:17:52,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:17:52,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:17:52,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:17:52,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:17:52,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:17:52,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:17:52,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:17:52,470 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:17:52,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:17:52,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:17:52,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:17:52,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:17:52,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:17:52,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:17:52,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:17:52,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:17:52,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:17:52,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:17:52,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:17:52,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:17:52,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:17:52,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:17:52,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:17:52,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:17:52,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:17:52,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:17:52,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:17:52,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:17:52,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:17:52,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:17:52,497 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:17:52,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:17:52,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:17:52,498 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:17:52,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:17:52,499 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:17:52,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:17:52,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:17:52,500 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:17:52,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:17:52,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:17:52,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:17:52,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:17:52,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:17:52,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:17:52,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:17:52,509 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:17:52,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:17:52,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:17:52,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:17:52,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:17:52,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:17:52,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:17:52,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:17:52,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:17:52,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:17:52,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:17:52,512 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:17:52,512 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:17:52,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:17:52,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2022-07-21 11:17:52,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:17:52,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:17:52,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:17:52,778 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:17:52,779 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:17:52,783 INFO L432 ainManager$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 [2022-07-21 11:17:52,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb03a5f9/5cd6543cc81c4c2ea0440353271c500e/FLAGb80f4f03d [2022-07-21 11:17:53,493 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:17:53,494 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 [2022-07-21 11:17:53,561 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb03a5f9/5cd6543cc81c4c2ea0440353271c500e/FLAGb80f4f03d [2022-07-21 11:17:54,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb03a5f9/5cd6543cc81c4c2ea0440353271c500e [2022-07-21 11:17:54,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:17:54,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:17:54,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:17:54,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:17:54,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:17:54,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:17:54" (1/1) ... [2022-07-21 11:17:54,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229c25ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:54, skipping insertion in model container [2022-07-21 11:17:54,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:17:54" (1/1) ... [2022-07-21 11:17:54,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:17:54,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:17:54,584 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-07-21 11:17:54,584 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] [2022-07-21 11:17:54,928 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] [2022-07-21 11:17:55,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:17:55,785 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:17:55,871 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-07-21 11:17:55,887 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] [2022-07-21 11:17:55,901 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] [2022-07-21 11:17:56,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:17:56,357 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:17:56,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:56 WrapperNode [2022-07-21 11:17:56,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:17:56,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:17:56,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:17:56,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:17:56,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:56" (1/1) ... [2022-07-21 11:17:56,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:56" (1/1) ... [2022-07-21 11:17:56,652 INFO L137 Inliner]: procedures = 286, calls = 2898, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5519 [2022-07-21 11:17:56,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:17:56,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:17:56,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:17:56,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:17:56,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:56" (1/1) ... [2022-07-21 11:17:56,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:56" (1/1) ... [2022-07-21 11:17:56,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:56" (1/1) ... [2022-07-21 11:17:56,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:56" (1/1) ... [2022-07-21 11:17:56,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:56" (1/1) ... [2022-07-21 11:17:56,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:56" (1/1) ... [2022-07-21 11:17:56,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:56" (1/1) ... [2022-07-21 11:17:56,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:17:56,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:17:56,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:17:56,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:17:56,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:56" (1/1) ... [2022-07-21 11:17:56,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:17:56,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:17:56,952 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) [2022-07-21 11:17:57,008 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 [2022-07-21 11:17:57,031 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-07-21 11:17:57,031 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-07-21 11:17:57,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:17:57,031 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-07-21 11:17:57,031 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-07-21 11:17:57,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:17:57,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:17:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:17:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 11:17:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 11:17:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2022-07-21 11:17:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2022-07-21 11:17:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-21 11:17:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-21 11:17:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2022-07-21 11:17:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2022-07-21 11:17:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:17:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:17:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 11:17:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2022-07-21 11:17:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2022-07-21 11:17:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:17:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:17:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-07-21 11:17:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-07-21 11:17:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:17:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:17:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:17:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:17:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 11:17:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 11:17:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-21 11:17:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-21 11:17:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2022-07-21 11:17:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2022-07-21 11:17:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 11:17:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 11:17:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2022-07-21 11:17:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2022-07-21 11:17:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-07-21 11:17:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-07-21 11:17:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2022-07-21 11:17:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2022-07-21 11:17:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2022-07-21 11:17:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2022-07-21 11:17:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 11:17:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 11:17:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-21 11:17:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-21 11:17:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:17:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-21 11:17:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2022-07-21 11:17:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2022-07-21 11:17:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2022-07-21 11:17:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2022-07-21 11:17:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2022-07-21 11:17:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2022-07-21 11:17:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:17:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-21 11:17:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-21 11:17:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2022-07-21 11:17:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2022-07-21 11:17:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-21 11:17:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 11:17:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 11:17:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:17:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-07-21 11:17:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-07-21 11:17:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:17:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-21 11:17:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-21 11:17:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 11:17:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 11:17:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 11:17:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 11:17:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2022-07-21 11:17:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2022-07-21 11:17:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 11:17:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 11:17:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 11:17:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 11:17:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 11:17:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 11:17:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 11:17:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2022-07-21 11:17:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2022-07-21 11:17:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-21 11:17:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-21 11:17:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2022-07-21 11:17:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2022-07-21 11:17:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2022-07-21 11:17:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2022-07-21 11:17:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 11:17:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 11:17:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 11:17:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-07-21 11:17:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-07-21 11:17:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2022-07-21 11:17:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2022-07-21 11:17:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 11:17:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2022-07-21 11:17:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2022-07-21 11:17:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 11:17:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 11:17:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2022-07-21 11:17:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2022-07-21 11:17:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-21 11:17:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-21 11:17:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:17:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:17:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2022-07-21 11:17:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2022-07-21 11:17:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-07-21 11:17:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-07-21 11:17:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 11:17:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 11:17:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 11:17:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 11:17:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-07-21 11:17:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-07-21 11:17:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:17:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:17:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2022-07-21 11:17:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2022-07-21 11:17:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2022-07-21 11:17:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2022-07-21 11:17:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 11:17:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2022-07-21 11:17:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2022-07-21 11:17:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2022-07-21 11:17:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2022-07-21 11:17:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:17:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:17:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2022-07-21 11:17:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2022-07-21 11:17:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2022-07-21 11:17:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2022-07-21 11:17:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2022-07-21 11:17:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2022-07-21 11:17:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:17:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-07-21 11:17:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-07-21 11:17:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:17:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:17:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 11:17:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-07-21 11:17:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-07-21 11:17:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:17:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:17:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2022-07-21 11:17:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2022-07-21 11:17:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-21 11:17:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-21 11:17:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-07-21 11:17:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-07-21 11:17:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2022-07-21 11:17:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2022-07-21 11:17:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 11:17:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-21 11:17:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-07-21 11:17:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-07-21 11:17:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2022-07-21 11:17:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2022-07-21 11:17:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 11:17:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 11:17:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2022-07-21 11:17:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2022-07-21 11:17:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 11:17:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2022-07-21 11:17:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2022-07-21 11:17:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2022-07-21 11:17:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2022-07-21 11:17:57,053 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-07-21 11:17:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-07-21 11:17:57,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:17:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:17:57,682 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:17:57,687 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:17:57,844 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:18:03,906 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-07-21 11:18:05,063 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; [2022-07-21 11:18:05,063 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; [2022-07-21 11:18:10,509 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:18:10,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:18:10,539 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 11:18:10,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:18:10 BoogieIcfgContainer [2022-07-21 11:18:10,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:18:10,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:18:10,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:18:10,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:18:10,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:17:54" (1/3) ... [2022-07-21 11:18:10,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff11573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:18:10, skipping insertion in model container [2022-07-21 11:18:10,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:17:56" (2/3) ... [2022-07-21 11:18:10,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff11573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:18:10, skipping insertion in model container [2022-07-21 11:18:10,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:18:10" (3/3) ... [2022-07-21 11:18:10,552 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 [2022-07-21 11:18:10,562 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:18:10,563 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:18:10,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:18:10,634 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@6d024d88, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@486eec58 [2022-07-21 11:18:10,634 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:18:10,642 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) [2022-07-21 11:18:10,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-21 11:18:10,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:18:10,659 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] [2022-07-21 11:18:10,659 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:18:10,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:18:10,663 INFO L85 PathProgramCache]: Analyzing trace with hash -692835284, now seen corresponding path program 1 times [2022-07-21 11:18:10,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:18:10,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765816956] [2022-07-21 11:18:10,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:18:10,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:18:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:11,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:18:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:11,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 11:18:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:18:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:11,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 11:18:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:11,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 11:18:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:11,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 11:18:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:11,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 11:18:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:11,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 11:18:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:11,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:18:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:11,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 11:18:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:11,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 11:18:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:11,414 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 11:18:11,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:18:11,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765816956] [2022-07-21 11:18:11,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765816956] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:18:11,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:18:11,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 11:18:11,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312492915] [2022-07-21 11:18:11,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:18:11,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 11:18:11,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:18:11,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 11:18:11,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 11:18:11,441 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) [2022-07-21 11:18:13,844 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 [] [2022-07-21 11:18:24,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:18:24,268 INFO L93 Difference]: Finished difference Result 5002 states and 7502 transitions. [2022-07-21 11:18:24,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:18:24,271 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 [2022-07-21 11:18:24,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:18:24,319 INFO L225 Difference]: With dead ends: 5002 [2022-07-21 11:18:24,319 INFO L226 Difference]: Without dead ends: 3281 [2022-07-21 11:18:24,335 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 [2022-07-21 11:18:24,339 INFO L413 NwaCegarLoop]: 2680 mSDtfsCounter, 2741 mSDsluCounter, 2997 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 803 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2999 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 2376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 803 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:18:24,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2999 Valid, 5677 Invalid, 2376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [803 Valid, 1572 Invalid, 1 Unknown, 0 Unchecked, 12.3s Time] [2022-07-21 11:18:24,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3281 states. [2022-07-21 11:18:24,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3281 to 3170. [2022-07-21 11:18:24,531 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) [2022-07-21 11:18:24,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 4598 transitions. [2022-07-21 11:18:24,636 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 4598 transitions. Word has length 86 [2022-07-21 11:18:24,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:18:24,638 INFO L495 AbstractCegarLoop]: Abstraction has 3170 states and 4598 transitions. [2022-07-21 11:18:24,640 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) [2022-07-21 11:18:24,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 4598 transitions. [2022-07-21 11:18:24,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 11:18:24,651 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:18:24,651 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] [2022-07-21 11:18:24,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 11:18:24,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:18:24,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:18:24,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2110448072, now seen corresponding path program 1 times [2022-07-21 11:18:24,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:18:24,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449004510] [2022-07-21 11:18:24,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:18:24,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:18:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:25,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:18:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:25,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 11:18:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:25,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:18:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:25,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 11:18:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 11:18:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:25,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 11:18:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:25,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 11:18:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:25,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 11:18:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:25,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:18:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:25,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 11:18:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:25,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 11:18:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 11:18:25,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:18:25,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449004510] [2022-07-21 11:18:25,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449004510] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:18:25,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:18:25,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:18:25,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587245151] [2022-07-21 11:18:25,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:18:25,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:18:25,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:18:25,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:18:25,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:18:25,108 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) [2022-07-21 11:18:27,589 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 [] [2022-07-21 11:18:50,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:18:50,359 INFO L93 Difference]: Finished difference Result 16106 states and 24451 transitions. [2022-07-21 11:18:50,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:18:50,360 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 [2022-07-21 11:18:50,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:18:50,426 INFO L225 Difference]: With dead ends: 16106 [2022-07-21 11:18:50,427 INFO L226 Difference]: Without dead ends: 12960 [2022-07-21 11:18:50,447 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 [2022-07-21 11:18:50,448 INFO L413 NwaCegarLoop]: 3535 mSDtfsCounter, 10300 mSDsluCounter, 5957 mSDsCounter, 0 mSdLazyCounter, 4390 mSolverCounterSat, 3203 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10998 SdHoareTripleChecker+Valid, 9492 SdHoareTripleChecker+Invalid, 7594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3203 IncrementalHoareTripleChecker+Valid, 4390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:18:50,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10998 Valid, 9492 Invalid, 7594 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3203 Valid, 4390 Invalid, 1 Unknown, 0 Unchecked, 24.3s Time] [2022-07-21 11:18:50,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12960 states. [2022-07-21 11:18:50,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12960 to 12554. [2022-07-21 11:18:50,799 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) [2022-07-21 11:18:50,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12554 states to 12554 states and 18636 transitions. [2022-07-21 11:18:50,848 INFO L78 Accepts]: Start accepts. Automaton has 12554 states and 18636 transitions. Word has length 97 [2022-07-21 11:18:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:18:50,851 INFO L495 AbstractCegarLoop]: Abstraction has 12554 states and 18636 transitions. [2022-07-21 11:18:50,851 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) [2022-07-21 11:18:50,851 INFO L276 IsEmpty]: Start isEmpty. Operand 12554 states and 18636 transitions. [2022-07-21 11:18:50,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 11:18:50,856 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:18:50,856 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] [2022-07-21 11:18:50,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 11:18:50,857 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:18:50,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:18:50,858 INFO L85 PathProgramCache]: Analyzing trace with hash 409515402, now seen corresponding path program 1 times [2022-07-21 11:18:50,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:18:50,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507415636] [2022-07-21 11:18:50,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:18:50,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:18:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:51,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:18:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:51,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 11:18:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:51,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:18:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:51,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 11:18:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:51,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 11:18:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:51,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 11:18:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:51,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 11:18:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:51,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 11:18:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:51,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:18:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:51,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 11:18:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:51,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 11:18:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:18:51,223 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 11:18:51,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:18:51,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507415636] [2022-07-21 11:18:51,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507415636] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:18:51,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:18:51,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:18:51,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605338512] [2022-07-21 11:18:51,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:18:51,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:18:51,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:18:51,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:18:51,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:18:51,225 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) [2022-07-21 11:18:53,755 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 [] [2022-07-21 11:19:22,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:19:22,673 INFO L93 Difference]: Finished difference Result 64140 states and 102067 transitions. [2022-07-21 11:19:22,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:19:22,674 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 [2022-07-21 11:19:22,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:19:22,988 INFO L225 Difference]: With dead ends: 64140 [2022-07-21 11:19:22,989 INFO L226 Difference]: Without dead ends: 51610 [2022-07-21 11:19:23,099 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 [2022-07-21 11:19:23,105 INFO L413 NwaCegarLoop]: 3414 mSDtfsCounter, 7289 mSDsluCounter, 8597 mSDsCounter, 0 mSdLazyCounter, 5994 mSolverCounterSat, 1696 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7988 SdHoareTripleChecker+Valid, 12011 SdHoareTripleChecker+Invalid, 7691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1696 IncrementalHoareTripleChecker+Valid, 5994 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:19:23,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7988 Valid, 12011 Invalid, 7691 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1696 Valid, 5994 Invalid, 1 Unknown, 0 Unchecked, 29.8s Time] [2022-07-21 11:19:23,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51610 states. [2022-07-21 11:19:24,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51610 to 50082. [2022-07-21 11:19:24,647 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) [2022-07-21 11:19:24,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50082 states to 50082 states and 77490 transitions. [2022-07-21 11:19:24,869 INFO L78 Accepts]: Start accepts. Automaton has 50082 states and 77490 transitions. Word has length 98 [2022-07-21 11:19:24,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:19:24,870 INFO L495 AbstractCegarLoop]: Abstraction has 50082 states and 77490 transitions. [2022-07-21 11:19:24,870 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) [2022-07-21 11:19:24,870 INFO L276 IsEmpty]: Start isEmpty. Operand 50082 states and 77490 transitions. [2022-07-21 11:19:24,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 11:19:24,872 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:19:24,872 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] [2022-07-21 11:19:24,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 11:19:24,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:19:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:19:24,873 INFO L85 PathProgramCache]: Analyzing trace with hash 7251858, now seen corresponding path program 1 times [2022-07-21 11:19:24,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:19:24,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198853866] [2022-07-21 11:19:24,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:19:24,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:19:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:19:25,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:19:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:19:25,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 11:19:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:19:25,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:19:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:19:25,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 11:19:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:19:25,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 11:19:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:19:25,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 11:19:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:19:25,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 11:19:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:19:25,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 11:19:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:19:25,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:19:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:19:25,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 11:19:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:19:25,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 11:19:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:19:25,275 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 11:19:25,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:19:25,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198853866] [2022-07-21 11:19:25,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198853866] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:19:25,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:19:25,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:19:25,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112968999] [2022-07-21 11:19:25,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:19:25,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:19:25,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:19:25,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:19:25,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:19:25,278 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) [2022-07-21 11:19:27,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:19:33,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:19:57,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:19:57,183 INFO L93 Difference]: Finished difference Result 255924 states and 449303 transitions. [2022-07-21 11:19:57,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:19:57,184 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 [2022-07-21 11:19:57,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:19:59,297 INFO L225 Difference]: With dead ends: 255924 [2022-07-21 11:19:59,298 INFO L226 Difference]: Without dead ends: 205866 [2022-07-21 11:19:59,898 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 [2022-07-21 11:19:59,898 INFO L413 NwaCegarLoop]: 3521 mSDtfsCounter, 8595 mSDsluCounter, 7602 mSDsCounter, 0 mSdLazyCounter, 4956 mSolverCounterSat, 1927 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9291 SdHoareTripleChecker+Valid, 11123 SdHoareTripleChecker+Invalid, 6884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1927 IncrementalHoareTripleChecker+Valid, 4956 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:19:59,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9291 Valid, 11123 Invalid, 6884 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1927 Valid, 4956 Invalid, 1 Unknown, 0 Unchecked, 26.6s Time] [2022-07-21 11:20:00,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205866 states. [2022-07-21 11:20:06,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205866 to 199774. [2022-07-21 11:20:07,017 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) [2022-07-21 11:20:08,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199774 states to 199774 states and 336384 transitions. [2022-07-21 11:20:08,827 INFO L78 Accepts]: Start accepts. Automaton has 199774 states and 336384 transitions. Word has length 96 [2022-07-21 11:20:08,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:20:08,828 INFO L495 AbstractCegarLoop]: Abstraction has 199774 states and 336384 transitions. [2022-07-21 11:20:08,828 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) [2022-07-21 11:20:08,828 INFO L276 IsEmpty]: Start isEmpty. Operand 199774 states and 336384 transitions. [2022-07-21 11:20:08,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 11:20:08,830 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:20:08,831 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] [2022-07-21 11:20:08,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 11:20:08,831 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:20:08,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:20:08,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1039671616, now seen corresponding path program 1 times [2022-07-21 11:20:08,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:20:08,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348123190] [2022-07-21 11:20:08,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:20:08,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:20:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:20:09,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:20:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:20:09,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 11:20:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:20:09,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:20:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:20:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 11:20:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:20:09,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 11:20:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:20:09,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 11:20:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:20:09,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 11:20:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:20:09,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 11:20:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:20:09,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:20:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:20:09,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-21 11:20:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:20:09,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:20:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:20:09,172 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 11:20:09,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:20:09,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348123190] [2022-07-21 11:20:09,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348123190] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:20:09,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:20:09,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:20:09,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798265689] [2022-07-21 11:20:09,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:20:09,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:20:09,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:20:09,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:20:09,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:20:09,176 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) [2022-07-21 11:20:11,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:21:09,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:21:09,603 INFO L93 Difference]: Finished difference Result 1020410 states and 2155779 transitions. [2022-07-21 11:21:09,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 11:21:09,604 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 99 [2022-07-21 11:21:09,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted.