./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 0f8a17c6 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 0.2.1-dev-0f8a17c [2021-11-17 01:12:29,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 01:12:29,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 01:12:29,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 01:12:29,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 01:12:29,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 01:12:29,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 01:12:29,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 01:12:29,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 01:12:29,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 01:12:29,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 01:12:29,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 01:12:29,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 01:12:29,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 01:12:29,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 01:12:29,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 01:12:29,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 01:12:29,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 01:12:29,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 01:12:29,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 01:12:29,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 01:12:29,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 01:12:29,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 01:12:29,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 01:12:29,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 01:12:29,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 01:12:29,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 01:12:29,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 01:12:29,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 01:12:29,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 01:12:29,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 01:12:29,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 01:12:29,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 01:12:29,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 01:12:29,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 01:12:29,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 01:12:29,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 01:12:29,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 01:12:29,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 01:12:29,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 01:12:29,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 01:12:29,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 01:12:29,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 01:12:29,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 01:12:29,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 01:12:29,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 01:12:29,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 01:12:29,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 01:12:29,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 01:12:29,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 01:12:29,817 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 01:12:29,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 01:12:29,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 01:12:29,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 01:12:29,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 01:12:29,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 01:12:29,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 01:12:29,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 01:12:29,819 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 01:12:29,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 01:12:29,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 01:12:29,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 01:12:29,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 01:12:29,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 01:12:29,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 01:12:29,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 01:12:29,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 01:12:29,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 01:12:29,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 01:12:29,821 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 01:12:29,821 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 01:12:29,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 01:12:29,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 01:12:29,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2021-11-17 01:12:30,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 01:12:30,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 01:12:30,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 01:12:30,025 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 01:12:30,025 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 01:12:30,026 INFO L432 ainManager$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 [2021-11-17 01:12:30,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd010f387/83c68d12270741dfb4c3b60cd101fb67/FLAG86f209f35 [2021-11-17 01:12:30,697 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 01:12:30,698 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 [2021-11-17 01:12:30,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd010f387/83c68d12270741dfb4c3b60cd101fb67/FLAG86f209f35 [2021-11-17 01:12:30,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd010f387/83c68d12270741dfb4c3b60cd101fb67 [2021-11-17 01:12:30,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 01:12:30,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 01:12:30,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 01:12:30,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 01:12:30,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 01:12:30,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:12:30" (1/1) ... [2021-11-17 01:12:30,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e412bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:30, skipping insertion in model container [2021-11-17 01:12:30,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:12:30" (1/1) ... [2021-11-17 01:12:30,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 01:12:30,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 01:12:31,293 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-17 01:12:31,298 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-17 01:12:31,679 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] [2021-11-17 01:12:32,599 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 01:12:32,631 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 01:12:32,702 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-11-17 01:12:32,704 WARN L1244 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-11-17 01:12:32,716 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] [2021-11-17 01:12:33,001 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 01:12:33,095 INFO L208 MainTranslator]: Completed translation [2021-11-17 01:12:33,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:33 WrapperNode [2021-11-17 01:12:33,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 01:12:33,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 01:12:33,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 01:12:33,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 01:12:33,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:33" (1/1) ... [2021-11-17 01:12:33,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:33" (1/1) ... [2021-11-17 01:12:33,353 INFO L137 Inliner]: procedures = 286, calls = 2896, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5508 [2021-11-17 01:12:33,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 01:12:33,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 01:12:33,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 01:12:33,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 01:12:33,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:33" (1/1) ... [2021-11-17 01:12:33,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:33" (1/1) ... [2021-11-17 01:12:33,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:33" (1/1) ... [2021-11-17 01:12:33,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:33" (1/1) ... [2021-11-17 01:12:33,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:33" (1/1) ... [2021-11-17 01:12:33,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:33" (1/1) ... [2021-11-17 01:12:33,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:33" (1/1) ... [2021-11-17 01:12:33,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 01:12:33,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 01:12:33,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 01:12:33,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 01:12:33,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:33" (1/1) ... [2021-11-17 01:12:33,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 01:12:33,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:12:33,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 01:12:33,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 01:12:33,633 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-17 01:12:33,633 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-17 01:12:33,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 01:12:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-17 01:12:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-17 01:12:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 01:12:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 01:12:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 01:12:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 01:12:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 01:12:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2021-11-17 01:12:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2021-11-17 01:12:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-17 01:12:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-17 01:12:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2021-11-17 01:12:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2021-11-17 01:12:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 01:12:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 01:12:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-17 01:12:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2021-11-17 01:12:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2021-11-17 01:12:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 01:12:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 01:12:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-11-17 01:12:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-11-17 01:12:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 01:12:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 01:12:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 01:12:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 01:12:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 01:12:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 01:12:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-17 01:12:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-17 01:12:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2021-11-17 01:12:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2021-11-17 01:12:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 01:12:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 01:12:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2021-11-17 01:12:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2021-11-17 01:12:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-11-17 01:12:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-11-17 01:12:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2021-11-17 01:12:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2021-11-17 01:12:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2021-11-17 01:12:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2021-11-17 01:12:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 01:12:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 01:12:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-17 01:12:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-17 01:12:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 01:12:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-17 01:12:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2021-11-17 01:12:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2021-11-17 01:12:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2021-11-17 01:12:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2021-11-17 01:12:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2021-11-17 01:12:33,640 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2021-11-17 01:12:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 01:12:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-17 01:12:33,640 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-17 01:12:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2021-11-17 01:12:33,640 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2021-11-17 01:12:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-17 01:12:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 01:12:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 01:12:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 01:12:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-11-17 01:12:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-11-17 01:12:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 01:12:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-17 01:12:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-17 01:12:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 01:12:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 01:12:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-17 01:12:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-17 01:12:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2021-11-17 01:12:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2021-11-17 01:12:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 01:12:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 01:12:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 01:12:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 01:12:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 01:12:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 01:12:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 01:12:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2021-11-17 01:12:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2021-11-17 01:12:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-17 01:12:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-17 01:12:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2021-11-17 01:12:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2021-11-17 01:12:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2021-11-17 01:12:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2021-11-17 01:12:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 01:12:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 01:12:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 01:12:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2021-11-17 01:12:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2021-11-17 01:12:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2021-11-17 01:12:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2021-11-17 01:12:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 01:12:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2021-11-17 01:12:33,645 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2021-11-17 01:12:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 01:12:33,645 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 01:12:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2021-11-17 01:12:33,645 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2021-11-17 01:12:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-17 01:12:33,645 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-17 01:12:33,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 01:12:33,645 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 01:12:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2021-11-17 01:12:33,646 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2021-11-17 01:12:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2021-11-17 01:12:33,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2021-11-17 01:12:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 01:12:33,646 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 01:12:33,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 01:12:33,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 01:12:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-11-17 01:12:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-11-17 01:12:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 01:12:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 01:12:33,647 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2021-11-17 01:12:33,648 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2021-11-17 01:12:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2021-11-17 01:12:33,652 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2021-11-17 01:12:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 01:12:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2021-11-17 01:12:33,653 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2021-11-17 01:12:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2021-11-17 01:12:33,653 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2021-11-17 01:12:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 01:12:33,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 01:12:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2021-11-17 01:12:33,653 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2021-11-17 01:12:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2021-11-17 01:12:33,653 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2021-11-17 01:12:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2021-11-17 01:12:33,654 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2021-11-17 01:12:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 01:12:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-11-17 01:12:33,654 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-11-17 01:12:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 01:12:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 01:12:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 01:12:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-17 01:12:33,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-17 01:12:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 01:12:33,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 01:12:33,655 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2021-11-17 01:12:33,655 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2021-11-17 01:12:33,655 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-17 01:12:33,655 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-17 01:12:33,655 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-11-17 01:12:33,655 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-11-17 01:12:33,655 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2021-11-17 01:12:33,655 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2021-11-17 01:12:33,655 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-17 01:12:33,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-17 01:12:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-17 01:12:33,656 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-17 01:12:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2021-11-17 01:12:33,656 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2021-11-17 01:12:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 01:12:33,656 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 01:12:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2021-11-17 01:12:33,656 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2021-11-17 01:12:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 01:12:33,657 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2021-11-17 01:12:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2021-11-17 01:12:33,657 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2021-11-17 01:12:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2021-11-17 01:12:33,657 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-11-17 01:12:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-11-17 01:12:33,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 01:12:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 01:12:34,337 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 01:12:34,341 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 01:12:34,536 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 01:12:40,999 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-17 01:12:43,075 INFO L768 $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; [2021-11-17 01:12:43,075 INFO L768 $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; [2021-11-17 01:12:49,890 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 01:12:49,911 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 01:12:49,911 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 01:12:49,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:12:49 BoogieIcfgContainer [2021-11-17 01:12:49,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 01:12:49,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 01:12:49,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 01:12:49,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 01:12:49,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 01:12:30" (1/3) ... [2021-11-17 01:12:49,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1c62d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:12:49, skipping insertion in model container [2021-11-17 01:12:49,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:12:33" (2/3) ... [2021-11-17 01:12:49,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e1c62d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:12:49, skipping insertion in model container [2021-11-17 01:12:49,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:12:49" (3/3) ... [2021-11-17 01:12:49,923 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 [2021-11-17 01:12:49,927 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 01:12:49,927 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 01:12:49,973 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 01:12:49,984 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 01:12:49,985 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 01:12:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 1666 states, 1226 states have (on average 1.3890701468189233) internal successors, (1703), 1266 states have internal predecessors, (1703), 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) [2021-11-17 01:12:50,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-17 01:12:50,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:12:50,042 INFO L514 BasicCegarLoop]: 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] [2021-11-17 01:12:50,043 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:12:50,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:12:50,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1135839636, now seen corresponding path program 1 times [2021-11-17 01:12:50,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:12:50,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787905298] [2021-11-17 01:12:50,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:12:50,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:12:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:50,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:12:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:50,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:12:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:50,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:12:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:50,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:12:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:50,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:12:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:50,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:12:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:12:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:50,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:12:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:12:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:50,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:12:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:50,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 01:12:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:12:50,584 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-17 01:12:50,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:12:50,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787905298] [2021-11-17 01:12:50,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787905298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:12:50,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:12:50,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 01:12:50,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698213093] [2021-11-17 01:12:50,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:12:50,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 01:12:50,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:12:50,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 01:12:50,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 01:12:50,613 INFO L87 Difference]: Start difference. First operand has 1666 states, 1226 states have (on average 1.3890701468189233) internal successors, (1703), 1266 states have internal predecessors, (1703), 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) [2021-11-17 01:12:52,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:55,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:12:57,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:04,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:13:04,716 INFO L93 Difference]: Finished difference Result 4987 states and 7475 transitions. [2021-11-17 01:13:04,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 01:13:04,719 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 [2021-11-17 01:13:04,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:13:04,746 INFO L225 Difference]: With dead ends: 4987 [2021-11-17 01:13:04,746 INFO L226 Difference]: Without dead ends: 3271 [2021-11-17 01:13:04,756 INFO L932 BasicCegarLoop]: 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 [2021-11-17 01:13:04,761 INFO L933 BasicCegarLoop]: 2671 mSDtfsCounter, 2717 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 805 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2971 SdHoareTripleChecker+Valid, 5918 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-11-17 01:13:04,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2971 Valid, 5918 Invalid, 2113 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [805 Valid, 1306 Invalid, 2 Unknown, 0 Unchecked, 13.5s Time] [2021-11-17 01:13:04,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2021-11-17 01:13:04,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3160. [2021-11-17 01:13:04,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2340 states have (on average 1.3858974358974359) internal successors, (3243), 2398 states have internal predecessors, (3243), 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) [2021-11-17 01:13:04,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4580 transitions. [2021-11-17 01:13:04,967 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4580 transitions. Word has length 86 [2021-11-17 01:13:04,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:13:04,968 INFO L470 AbstractCegarLoop]: Abstraction has 3160 states and 4580 transitions. [2021-11-17 01:13:04,969 INFO L471 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) [2021-11-17 01:13:04,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4580 transitions. [2021-11-17 01:13:04,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-17 01:13:04,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:13:04,975 INFO L514 BasicCegarLoop]: 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] [2021-11-17 01:13:04,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 01:13:04,976 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:13:04,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:13:04,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1699374466, now seen corresponding path program 1 times [2021-11-17 01:13:04,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:13:04,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833715701] [2021-11-17 01:13:04,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:13:04,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:13:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:05,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:13:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:05,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:13:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:05,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:13:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:05,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:13:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:05,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:13:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:05,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:13:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:13:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:05,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:13:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:05,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:13:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:05,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:13:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:05,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 01:13:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:05,463 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-17 01:13:05,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:13:05,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833715701] [2021-11-17 01:13:05,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833715701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:13:05,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:13:05,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 01:13:05,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144960987] [2021-11-17 01:13:05,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:13:05,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:13:05,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:13:05,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:13:05,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:13:05,466 INFO L87 Difference]: Start difference. First operand 3160 states and 4580 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) [2021-11-17 01:13:07,506 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:09,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:12,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:35,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:13:35,010 INFO L93 Difference]: Finished difference Result 16064 states and 24377 transitions. [2021-11-17 01:13:35,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 01:13:35,011 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 [2021-11-17 01:13:35,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:13:35,075 INFO L225 Difference]: With dead ends: 16064 [2021-11-17 01:13:35,076 INFO L226 Difference]: Without dead ends: 12928 [2021-11-17 01:13:35,096 INFO L932 BasicCegarLoop]: 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 [2021-11-17 01:13:35,097 INFO L933 BasicCegarLoop]: 3538 mSDtfsCounter, 10244 mSDsluCounter, 6206 mSDsCounter, 0 mSdLazyCounter, 4112 mSolverCounterSat, 3201 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10936 SdHoareTripleChecker+Valid, 9744 SdHoareTripleChecker+Invalid, 7316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3201 IncrementalHoareTripleChecker+Valid, 4112 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2021-11-17 01:13:35,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10936 Valid, 9744 Invalid, 7316 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3201 Valid, 4112 Invalid, 3 Unknown, 0 Unchecked, 28.4s Time] [2021-11-17 01:13:35,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12928 states. [2021-11-17 01:13:35,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12928 to 12522. [2021-11-17 01:13:35,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12522 states, 9275 states have (on average 1.3857681940700808) internal successors, (12853), 9509 states have internal predecessors, (12853), 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) [2021-11-17 01:13:35,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12522 states to 12522 states and 18580 transitions. [2021-11-17 01:13:35,490 INFO L78 Accepts]: Start accepts. Automaton has 12522 states and 18580 transitions. Word has length 99 [2021-11-17 01:13:35,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:13:35,492 INFO L470 AbstractCegarLoop]: Abstraction has 12522 states and 18580 transitions. [2021-11-17 01:13:35,493 INFO L471 AbstractCegarLoop]: INTERPOLANT 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) [2021-11-17 01:13:35,493 INFO L276 IsEmpty]: Start isEmpty. Operand 12522 states and 18580 transitions. [2021-11-17 01:13:35,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-17 01:13:35,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:13:35,496 INFO L514 BasicCegarLoop]: 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] [2021-11-17 01:13:35,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 01:13:35,497 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:13:35,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:13:35,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1667649466, now seen corresponding path program 1 times [2021-11-17 01:13:35,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:13:35,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713749023] [2021-11-17 01:13:35,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:13:35,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:13:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:13:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:35,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:13:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:35,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:13:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:35,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:13:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:35,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:13:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:35,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:13:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:35,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:13:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:35,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:13:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:35,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:13:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:13:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:35,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 01:13:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:13:35,859 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-17 01:13:35,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:13:35,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713749023] [2021-11-17 01:13:35,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713749023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:13:35,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:13:35,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 01:13:35,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884386276] [2021-11-17 01:13:35,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:13:35,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:13:35,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:13:35,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:13:35,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:13:35,862 INFO L87 Difference]: Start difference. First operand 12522 states and 18580 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) [2021-11-17 01:13:37,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:39,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:13:42,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:12,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:14:12,891 INFO L93 Difference]: Finished difference Result 63960 states and 101911 transitions. [2021-11-17 01:14:12,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 01:14:12,894 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 [2021-11-17 01:14:12,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:14:13,280 INFO L225 Difference]: With dead ends: 63960 [2021-11-17 01:14:13,280 INFO L226 Difference]: Without dead ends: 51462 [2021-11-17 01:14:13,406 INFO L932 BasicCegarLoop]: 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 [2021-11-17 01:14:13,411 INFO L933 BasicCegarLoop]: 3490 mSDtfsCounter, 7019 mSDsluCounter, 11172 mSDsCounter, 0 mSdLazyCounter, 5807 mSolverCounterSat, 1152 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7714 SdHoareTripleChecker+Valid, 14662 SdHoareTripleChecker+Invalid, 6962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1152 IncrementalHoareTripleChecker+Valid, 5807 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.3s IncrementalHoareTripleChecker+Time [2021-11-17 01:14:13,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7714 Valid, 14662 Invalid, 6962 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1152 Valid, 5807 Invalid, 3 Unknown, 0 Unchecked, 35.3s Time] [2021-11-17 01:14:13,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51462 states. [2021-11-17 01:14:15,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51462 to 49930. [2021-11-17 01:14:15,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49930 states, 36989 states have (on average 1.3841141961123578) internal successors, (51197), 37909 states have internal predecessors, (51197), 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) [2021-11-17 01:14:15,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49930 states to 49930 states and 77218 transitions. [2021-11-17 01:14:15,804 INFO L78 Accepts]: Start accepts. Automaton has 49930 states and 77218 transitions. Word has length 97 [2021-11-17 01:14:15,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:14:15,804 INFO L470 AbstractCegarLoop]: Abstraction has 49930 states and 77218 transitions. [2021-11-17 01:14:15,804 INFO L471 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) [2021-11-17 01:14:15,805 INFO L276 IsEmpty]: Start isEmpty. Operand 49930 states and 77218 transitions. [2021-11-17 01:14:15,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-17 01:14:15,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:14:15,807 INFO L514 BasicCegarLoop]: 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] [2021-11-17 01:14:15,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 01:14:15,807 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:14:15,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:14:15,808 INFO L85 PathProgramCache]: Analyzing trace with hash 956034598, now seen corresponding path program 1 times [2021-11-17 01:14:15,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:14:15,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321517697] [2021-11-17 01:14:15,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:14:15,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:14:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:16,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:14:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:14:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:14:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:16,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:14:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:16,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:14:16,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:16,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:14:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:16,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:14:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:14:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:16,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:14:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:16,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:14:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:16,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-17 01:14:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:14:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-17 01:14:16,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:14:16,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321517697] [2021-11-17 01:14:16,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321517697] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:14:16,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:14:16,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 01:14:16,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307888274] [2021-11-17 01:14:16,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:14:16,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:14:16,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:14:16,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:14:16,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:14:16,220 INFO L87 Difference]: Start difference. First operand 49930 states and 77218 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) [2021-11-17 01:14:18,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:21,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:14:55,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:14:55,452 INFO L93 Difference]: Finished difference Result 255156 states and 447987 transitions. [2021-11-17 01:14:55,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 01:14:55,453 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 [2021-11-17 01:14:55,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:14:57,970 INFO L225 Difference]: With dead ends: 255156 [2021-11-17 01:14:57,970 INFO L226 Difference]: Without dead ends: 205250 [2021-11-17 01:14:58,541 INFO L932 BasicCegarLoop]: 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 [2021-11-17 01:14:58,541 INFO L933 BasicCegarLoop]: 3547 mSDtfsCounter, 7040 mSDsluCounter, 10841 mSDsCounter, 0 mSdLazyCounter, 5730 mSolverCounterSat, 1193 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7735 SdHoareTripleChecker+Valid, 14388 SdHoareTripleChecker+Invalid, 6925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1193 IncrementalHoareTripleChecker+Valid, 5730 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.9s IncrementalHoareTripleChecker+Time [2021-11-17 01:14:58,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7735 Valid, 14388 Invalid, 6925 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1193 Valid, 5730 Invalid, 2 Unknown, 0 Unchecked, 33.9s Time] [2021-11-17 01:14:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205250 states. [2021-11-17 01:15:05,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205250 to 199158. [2021-11-17 01:15:05,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199158 states, 147649 states have (on average 1.3826101091101193) internal successors, (204141), 151129 states have internal predecessors, (204141), 41771 states have call successors, (41771), 9506 states have call predecessors, (41771), 9737 states have return successors, (89364), 40794 states have call predecessors, (89364), 41770 states have call successors, (89364) [2021-11-17 01:15:08,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199158 states to 199158 states and 335276 transitions. [2021-11-17 01:15:08,089 INFO L78 Accepts]: Start accepts. Automaton has 199158 states and 335276 transitions. Word has length 96 [2021-11-17 01:15:08,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:15:08,089 INFO L470 AbstractCegarLoop]: Abstraction has 199158 states and 335276 transitions. [2021-11-17 01:15:08,089 INFO L471 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) [2021-11-17 01:15:08,089 INFO L276 IsEmpty]: Start isEmpty. Operand 199158 states and 335276 transitions. [2021-11-17 01:15:08,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-17 01:15:08,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:15:08,091 INFO L514 BasicCegarLoop]: 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] [2021-11-17 01:15:08,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 01:15:08,092 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:15:08,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:15:08,092 INFO L85 PathProgramCache]: Analyzing trace with hash 421984606, now seen corresponding path program 1 times [2021-11-17 01:15:08,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:15:08,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302764966] [2021-11-17 01:15:08,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:15:08,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:15:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:15:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:15:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:15:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:15:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:15:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:15:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:15:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:15:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:15:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:15:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 01:15:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:15:08,483 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-11-17 01:15:08,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:15:08,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302764966] [2021-11-17 01:15:08,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302764966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:15:08,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:15:08,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 01:15:08,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380646062] [2021-11-17 01:15:08,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:15:08,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:15:08,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:15:08,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:15:08,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:15:08,486 INFO L87 Difference]: Start difference. First operand 199158 states and 335276 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) [2021-11-17 01:15:10,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:12,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:15,380 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:15:18,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:16:15,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:16:15,334 INFO L93 Difference]: Finished difference Result 1017250 states and 2150527 transitions. [2021-11-17 01:16:15,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 01:16:15,335 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 [2021-11-17 01:16:15,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted.