/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 06:34:54,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 06:34:54,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 06:34:54,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 06:34:54,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 06:34:54,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 06:34:54,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 06:34:54,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 06:34:54,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 06:34:54,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 06:34:54,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 06:34:54,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 06:34:54,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 06:34:54,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 06:34:54,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 06:34:54,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 06:34:54,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 06:34:54,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 06:34:54,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 06:34:54,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 06:34:54,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 06:34:54,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 06:34:54,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 06:34:54,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 06:34:54,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 06:34:54,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 06:34:54,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 06:34:54,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 06:34:54,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 06:34:54,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 06:34:54,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 06:34:54,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 06:34:54,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 06:34:54,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 06:34:54,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 06:34:54,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 06:34:54,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 06:34:54,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 06:34:54,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 06:34:54,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 06:34:54,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 06:34:54,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 06:34:54,870 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 06:34:54,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 06:34:54,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 06:34:54,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 06:34:54,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 06:34:54,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 06:34:54,872 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 06:34:54,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 06:34:54,872 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 06:34:54,872 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 06:34:54,873 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 06:34:54,873 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 06:34:54,873 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 06:34:54,873 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 06:34:54,873 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 06:34:54,874 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 06:34:54,874 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 06:34:54,874 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 06:34:54,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 06:34:54,875 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 06:34:54,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 06:34:54,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 06:34:54,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 06:34:54,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 06:34:54,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 06:34:54,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 06:34:54,876 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 06:34:54,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 06:34:54,876 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 06:34:54,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 06:34:54,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 06:34:54,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 06:34:54,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:34:54,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 06:34:54,877 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 06:34:54,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 06:34:54,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 06:34:54,877 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 06:34:54,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 06:34:54,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 06:34:54,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 06:34:54,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 06:34:55,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 06:34:55,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 06:34:55,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 06:34:55,091 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 06:34:55,091 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 06:34:55,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2023-04-03 06:34:56,217 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 06:34:56,729 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 06:34:56,729 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2023-04-03 06:34:56,775 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dbd9eac5/72bf7dd132854d259113a5c63b3da572/FLAG979c1550a [2023-04-03 06:34:56,789 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dbd9eac5/72bf7dd132854d259113a5c63b3da572 [2023-04-03 06:34:56,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 06:34:56,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 06:34:56,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 06:34:56,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 06:34:56,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 06:34:56,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:34:56" (1/1) ... [2023-04-03 06:34:56,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca5ea39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:34:56, skipping insertion in model container [2023-04-03 06:34:56,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:34:56" (1/1) ... [2023-04-03 06:34:56,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 06:34:56,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 06:34:57,626 WARN L633 FunctionHandler]: implicit declaration of function ldv_undef_int [2023-04-03 06:34:57,627 WARN L633 FunctionHandler]: implicit declaration of function ldv_assume [2023-04-03 06:34:58,752 WARN L247 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[319906,319919] [2023-04-03 06:34:58,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:34:58,858 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 06:34:59,015 WARN L633 FunctionHandler]: implicit declaration of function ldv_undef_int [2023-04-03 06:34:59,016 WARN L633 FunctionHandler]: implicit declaration of function ldv_assume [2023-04-03 06:34:59,291 WARN L247 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[319906,319919] [2023-04-03 06:34:59,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:34:59,460 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:34:59,460 WARN L667 CHandler]: The function ldv_assume is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:34:59,466 INFO L208 MainTranslator]: Completed translation [2023-04-03 06:34:59,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:34:59 WrapperNode [2023-04-03 06:34:59,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 06:34:59,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 06:34:59,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 06:34:59,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 06:34:59,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:34:59" (1/1) ... [2023-04-03 06:34:59,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:34:59" (1/1) ... [2023-04-03 06:34:59,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:34:59" (1/1) ... [2023-04-03 06:34:59,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:34:59" (1/1) ... [2023-04-03 06:34:59,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:34:59" (1/1) ... [2023-04-03 06:34:59,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:34:59" (1/1) ... [2023-04-03 06:34:59,747 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:34:59" (1/1) ... [2023-04-03 06:34:59,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:34:59" (1/1) ... [2023-04-03 06:34:59,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 06:34:59,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 06:34:59,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 06:34:59,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 06:34:59,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:34:59" (1/1) ... [2023-04-03 06:34:59,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:34:59,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:34:59,840 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) [2023-04-03 06:34:59,865 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 [2023-04-03 06:34:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 06:34:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 06:34:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 06:34:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-03 06:34:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-04-03 06:34:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-04-03 06:34:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-03 06:34:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 06:34:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 06:34:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2023-04-03 06:34:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 06:34:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-03 06:34:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-03 06:34:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 06:34:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 06:34:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 06:34:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 06:34:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_weight [2023-04-03 06:34:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_check [2023-04-03 06:34:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2023-04-03 06:34:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2023-04-03 06:34:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-03 06:34:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-04-03 06:34:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 06:34:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2023-04-03 06:34:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_6 [2023-04-03 06:34:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_8 [2023-04-03 06:34:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2023-04-03 06:34:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_10 [2023-04-03 06:34:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_11 [2023-04-03 06:34:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2023-04-03 06:34:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_feature [2023-04-03 06:34:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 06:34:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 06:34:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2023-04-03 06:34:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2023-04-03 06:34:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-04-03 06:34:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2023-04-03 06:34:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2023-04-03 06:34:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_hash [2023-04-03 06:34:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-04-03 06:34:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2023-04-03 06:34:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2023-04-03 06:34:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-04-03 06:34:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2023-04-03 06:34:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-04-03 06:34:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2023-04-03 06:34:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_after [2023-04-03 06:34:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_before [2023-04-03 06:34:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head [2023-04-03 06:34:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2023-04-03 06:34:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2023-04-03 06:34:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2023-04-03 06:34:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_purge [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_linearize [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_linearize [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_has_frag_list [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_queue_mapping [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_init [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_irq [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_irq [2023-04-03 06:34:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable_pending [2023-04-03 06:34:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2023-04-03 06:34:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2023-04-03 06:34:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_complete [2023-04-03 06:34:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-04-03 06:34:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_synchronize [2023-04-03 06:34:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-04-03 06:34:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-04-03 06:34:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-04-03 06:34:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_all_queues [2023-04-03 06:34:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2023-04-03 06:34:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2023-04-03 06:34:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-04-03 06:34:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-04-03 06:34:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-04-03 06:34:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-04-03 06:34:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure net_gso_ok [2023-04-03 06:34:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_gso_ok [2023-04-03 06:34:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_needs_gso [2023-04-03 06:34:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __pfn_to_mfn [2023-04-03 06:34:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2023-04-03 06:34:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure page_to_mfn [2023-04-03 06:34:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2023-04-03 06:34:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_is_link [2023-04-03 06:34:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2023-04-03 06:34:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2023-04-03 06:34:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2023-04-03 06:34:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2023-04-03 06:34:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2023-04-03 06:34:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2023-04-03 06:34:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_refill_timeout [2023-04-03 06:34:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2023-04-03 06:34:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_maybe_wake_tx [2023-04-03 06:34:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_one_rx_buffer [2023-04-03 06:34:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2023-04-03 06:34:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_open [2023-04-03 06:34:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2023-04-03 06:34:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_make_one_txreq [2023-04-03 06:34:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_make_txreqs [2023-04-03 06:34:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_count_skb_slots [2023-04-03 06:34:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2023-04-03 06:34:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_start_xmit [2023-04-03 06:34:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_close [2023-04-03 06:34:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_move_rx_slot [2023-04-03 06:34:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_extras [2023-04-03 06:34:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_responses [2023-04-03 06:34:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_skb_gso [2023-04-03 06:34:59,890 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fill_frags [2023-04-03 06:34:59,890 INFO L138 BoogieDeclarations]: Found implementation of procedure checksum_setup [2023-04-03 06:34:59,892 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_incoming_queue [2023-04-03 06:34:59,893 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll [2023-04-03 06:34:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2023-04-03 06:34:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2023-04-03 06:34:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2023-04-03 06:34:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_rx_bufs [2023-04-03 06:34:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2023-04-03 06:34:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2023-04-03 06:34:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_interrupt [2023-04-03 06:34:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rx_interrupt [2023-04-03 06:34:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_interrupt [2023-04-03 06:34:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2023-04-03 06:34:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_free_netdev [2023-04-03 06:34:59,898 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_create_dev [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_probe [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_resume [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_net_read_mac [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_netfront_single [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_netfront_split [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_netfront [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_init_queue [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_destroy_queues [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_create_queues [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure talk_to_netback [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_connect [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_sset_count [2023-04-03 06:34:59,899 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_ethtool_stats [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_strings [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure show_rxbuf [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_init [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_exit [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_init_1 [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_device_attribute_5 [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_7 [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ethtool_ops_6 [2023-04-03 06:34:59,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_xenbus_driver_2 [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_device_attribute_4 [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-04-03 06:34:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_26 [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_28 [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_copy_30 [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_31 [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_32 [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_33 [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_34 [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_35 [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_36 [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___get_free_pages_38 [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_39 [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_40 [2023-04-03 06:34:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_41 [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_42 [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_43 [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_44 [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_percpu [2023-04-03 06:34:59,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitmap_weight [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_page_tail [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_get_hash [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __xenbus_register_frontend [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-03 06:34:59,904 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_page [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_op_get_link [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2023-04-03 06:34:59,905 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2023-04-03 06:34:59,906 INFO L138 BoogieDeclarations]: Found implementation of procedure get_phys_to_machine [2023-04-03 06:34:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2023-04-03 06:34:59,909 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2023-04-03 06:34:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2023-04-03 06:34:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2023-04-03 06:34:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2023-04-03 06:34:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2023-04-03 06:34:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2023-04-03 06:34:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_query_foreign_access [2023-04-03 06:34:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2023-04-03 06:34:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-04-03 06:34:59,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_7 [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_7 [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_suspend_2 [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_notify_peers [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_add [2023-04-03 06:34:59,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_skb_features [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_all_queues [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_setup [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure xen_has_pv_nic_devices [2023-04-03 06:34:59,912 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_dev_fatal [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_frontend_closed [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_printf [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_read [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_scanf [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_strstate [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_switch_state [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_start [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_unregister_driver [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 06:34:59,913 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 06:34:59,914 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-04-03 06:34:59,914 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 06:34:59,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2023-04-03 06:34:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure __bitmap_weight [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_weight [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_check [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-03 06:34:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_6 [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_8 [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_10 [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_11 [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-03 06:34:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure dump_page [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_40 [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_43 [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure xen_feature [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_percpu [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___get_free_pages_38 [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-03 06:34:59,919 INFO L130 BoogieDeclarations]: Found specification of procedure timer_init_1 [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_device_attribute_5 [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_7 [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ethtool_ops_6 [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_xenbus_driver_2 [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_device_attribute_4 [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 06:34:59,920 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure __get_page_tail [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_get_hash [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_28 [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_36 [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_copy_30 [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_26 [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_34 [2023-04-03 06:34:59,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_35 [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_hash [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_after [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_before [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2023-04-03 06:34:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_purge [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_31 [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_32 [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_33 [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_39 [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_linearize [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_linearize [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_has_frag_list [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_queue_mapping [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_setup [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_op_get_link [2023-04-03 06:34:59,923 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_init [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_irq [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_irq [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable_pending [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure napi_complete [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure napi_synchronize [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_add [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_41 [2023-04-03 06:34:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_all_queues [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_all_queues [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-04-03 06:34:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-04-03 06:34:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-04-03 06:34:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2023-04-03 06:34:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_42 [2023-04-03 06:34:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-04-03 06:34:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_44 [2023-04-03 06:34:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_notify_peers [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure netif_skb_features [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure net_gso_ok [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure skb_gso_ok [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure netif_needs_gso [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure __xenbus_register_frontend [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_unregister_driver [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_read [2023-04-03 06:34:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_start [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_scanf [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_printf [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_switch_state [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_dev_fatal [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_strstate [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_frontend_closed [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_query_foreign_access [2023-04-03 06:34:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure get_phys_to_machine [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure __pfn_to_mfn [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure page_to_mfn [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure xen_has_pv_nic_devices [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_is_link [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2023-04-03 06:34:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure rx_refill_timeout [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_maybe_wake_tx [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_one_rx_buffer [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_open [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_make_one_txreq [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_make_txreqs [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_count_skb_slots [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_start_xmit [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_close [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_move_rx_slot [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_extras [2023-04-03 06:34:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_responses [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_skb_gso [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fill_frags [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure checksum_setup [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure handle_incoming_queue [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_rx_bufs [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_interrupt [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rx_interrupt [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_interrupt [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2023-04-03 06:34:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_free_netdev [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_create_dev [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_probe [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_resume [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure xen_net_read_mac [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure setup_netfront_single [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure setup_netfront_split [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure setup_netfront [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_init_queue [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_destroy_queues [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_create_queues [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure talk_to_netback [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_connect [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2023-04-03 06:34:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_sset_count [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_ethtool_stats [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_strings [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure show_rxbuf [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure netif_init [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure netif_exit [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_7 [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_7 [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_suspend_2 [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-03 06:34:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 06:34:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 06:35:00,796 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 06:35:00,802 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 06:35:01,121 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 06:35:05,523 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 06:35:06,618 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 06:35:06,618 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-03 06:35:06,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:35:06 BoogieIcfgContainer [2023-04-03 06:35:06,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 06:35:06,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 06:35:06,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 06:35:06,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 06:35:06,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 06:34:56" (1/3) ... [2023-04-03 06:35:06,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a7a8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:35:06, skipping insertion in model container [2023-04-03 06:35:06,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:34:59" (2/3) ... [2023-04-03 06:35:06,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a7a8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:35:06, skipping insertion in model container [2023-04-03 06:35:06,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:35:06" (3/3) ... [2023-04-03 06:35:06,632 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2023-04-03 06:35:06,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 06:35:06,648 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 06:35:06,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 06:35:06,752 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@129a68e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 06:35:06,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 06:35:06,765 INFO L276 IsEmpty]: Start isEmpty. Operand has 2231 states, 1278 states have (on average 1.2613458528951487) internal successors, (1612), 1336 states have internal predecessors, (1612), 650 states have call successors, (650), 286 states have call predecessors, (650), 285 states have return successors, (641), 634 states have call predecessors, (641), 641 states have call successors, (641) [2023-04-03 06:35:06,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-04-03 06:35:06,814 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:35:06,815 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:35:06,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:35:06,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:35:06,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1522911205, now seen corresponding path program 1 times [2023-04-03 06:35:06,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:35:06,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299704627] [2023-04-03 06:35:06,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:35:06,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:35:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:35:07,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1464 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1464 trivial. 0 not checked. [2023-04-03 06:35:07,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:35:07,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299704627] [2023-04-03 06:35:07,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299704627] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:35:07,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:35:07,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:35:07,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000252620] [2023-04-03 06:35:07,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:35:07,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:35:07,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:35:07,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:35:07,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:35:07,930 INFO L87 Difference]: Start difference. First operand has 2231 states, 1278 states have (on average 1.2613458528951487) internal successors, (1612), 1336 states have internal predecessors, (1612), 650 states have call successors, (650), 286 states have call predecessors, (650), 285 states have return successors, (641), 634 states have call predecessors, (641), 641 states have call successors, (641) Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2023-04-03 06:35:09,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:35:09,433 INFO L93 Difference]: Finished difference Result 4949 states and 6459 transitions. [2023-04-03 06:35:09,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:35:09,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 370 [2023-04-03 06:35:09,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:35:09,463 INFO L225 Difference]: With dead ends: 4949 [2023-04-03 06:35:09,463 INFO L226 Difference]: Without dead ends: 3086 [2023-04-03 06:35:09,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:35:09,478 INFO L413 NwaCegarLoop]: 2568 mSDtfsCounter, 1766 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 4523 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:35:09,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 4523 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 06:35:09,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3086 states. [2023-04-03 06:35:09,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3086 to 3056. [2023-04-03 06:35:09,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3056 states, 1782 states have (on average 1.2631874298540966) internal successors, (2251), 1855 states have internal predecessors, (2251), 849 states have call successors, (849), 428 states have call predecessors, (849), 424 states have return successors, (850), 827 states have call predecessors, (850), 847 states have call successors, (850) [2023-04-03 06:35:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3056 states to 3056 states and 3950 transitions. [2023-04-03 06:35:09,716 INFO L78 Accepts]: Start accepts. Automaton has 3056 states and 3950 transitions. Word has length 370 [2023-04-03 06:35:09,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:35:09,719 INFO L495 AbstractCegarLoop]: Abstraction has 3056 states and 3950 transitions. [2023-04-03 06:35:09,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2023-04-03 06:35:09,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3056 states and 3950 transitions. [2023-04-03 06:35:09,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-04-03 06:35:09,731 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:35:09,731 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 9, 9, 9, 9, 9, 9, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:35:09,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 06:35:09,732 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:35:09,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:35:09,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1882458416, now seen corresponding path program 1 times [2023-04-03 06:35:09,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:35:09,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532899524] [2023-04-03 06:35:09,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:35:09,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:35:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:35:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2023-04-03 06:35:10,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:35:10,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532899524] [2023-04-03 06:35:10,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532899524] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:35:10,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:35:10,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:35:10,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61369420] [2023-04-03 06:35:10,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:35:10,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:35:10,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:35:10,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:35:10,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:35:10,317 INFO L87 Difference]: Start difference. First operand 3056 states and 3950 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-04-03 06:35:11,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:35:11,949 INFO L93 Difference]: Finished difference Result 7235 states and 9324 transitions. [2023-04-03 06:35:11,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:35:11,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 371 [2023-04-03 06:35:11,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:35:11,974 INFO L225 Difference]: With dead ends: 7235 [2023-04-03 06:35:11,974 INFO L226 Difference]: Without dead ends: 4245 [2023-04-03 06:35:11,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:35:11,990 INFO L413 NwaCegarLoop]: 2528 mSDtfsCounter, 1321 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 4513 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-03 06:35:11,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 4513 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-03 06:35:11,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4245 states. [2023-04-03 06:35:12,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4245 to 4240. [2023-04-03 06:35:12,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4240 states, 2504 states have (on average 1.2731629392971247) internal successors, (3188), 2600 states have internal predecessors, (3188), 1135 states have call successors, (1135), 604 states have call predecessors, (1135), 600 states have return successors, (1136), 1105 states have call predecessors, (1136), 1133 states have call successors, (1136) [2023-04-03 06:35:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4240 states to 4240 states and 5459 transitions. [2023-04-03 06:35:12,155 INFO L78 Accepts]: Start accepts. Automaton has 4240 states and 5459 transitions. Word has length 371 [2023-04-03 06:35:12,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:35:12,159 INFO L495 AbstractCegarLoop]: Abstraction has 4240 states and 5459 transitions. [2023-04-03 06:35:12,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2023-04-03 06:35:12,159 INFO L276 IsEmpty]: Start isEmpty. Operand 4240 states and 5459 transitions. [2023-04-03 06:35:12,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-04-03 06:35:12,169 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:35:12,169 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:35:12,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 06:35:12,170 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:35:12,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:35:12,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1989513444, now seen corresponding path program 1 times [2023-04-03 06:35:12,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:35:12,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569903490] [2023-04-03 06:35:12,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:35:12,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:35:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:35:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2573 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2568 trivial. 0 not checked. [2023-04-03 06:35:12,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:35:12,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569903490] [2023-04-03 06:35:12,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569903490] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:35:12,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:35:12,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:35:12,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29004455] [2023-04-03 06:35:12,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:35:12,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:35:12,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:35:12,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:35:12,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:35:12,867 INFO L87 Difference]: Start difference. First operand 4240 states and 5459 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2023-04-03 06:35:14,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:35:14,482 INFO L93 Difference]: Finished difference Result 11100 states and 14284 transitions. [2023-04-03 06:35:14,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:35:14,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 478 [2023-04-03 06:35:14,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:35:14,520 INFO L225 Difference]: With dead ends: 11100 [2023-04-03 06:35:14,520 INFO L226 Difference]: Without dead ends: 6929 [2023-04-03 06:35:14,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:35:14,538 INFO L413 NwaCegarLoop]: 3322 mSDtfsCounter, 2184 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 5268 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:35:14,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 5268 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 06:35:14,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2023-04-03 06:35:14,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6924. [2023-04-03 06:35:14,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6924 states, 4091 states have (on average 1.271571742850159) internal successors, (5202), 4251 states have internal predecessors, (5202), 1847 states have call successors, (1847), 989 states have call predecessors, (1847), 985 states have return successors, (1848), 1801 states have call predecessors, (1848), 1845 states have call successors, (1848) [2023-04-03 06:35:14,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6924 states to 6924 states and 8897 transitions. [2023-04-03 06:35:14,843 INFO L78 Accepts]: Start accepts. Automaton has 6924 states and 8897 transitions. Word has length 478 [2023-04-03 06:35:14,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:35:14,844 INFO L495 AbstractCegarLoop]: Abstraction has 6924 states and 8897 transitions. [2023-04-03 06:35:14,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2023-04-03 06:35:14,845 INFO L276 IsEmpty]: Start isEmpty. Operand 6924 states and 8897 transitions. [2023-04-03 06:35:14,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2023-04-03 06:35:14,854 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:35:14,855 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:35:14,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 06:35:14,855 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:35:14,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:35:14,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1239995396, now seen corresponding path program 1 times [2023-04-03 06:35:14,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:35:14,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606844500] [2023-04-03 06:35:14,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:35:14,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:35:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:35:15,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2573 trivial. 0 not checked. [2023-04-03 06:35:15,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:35:15,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606844500] [2023-04-03 06:35:15,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606844500] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:35:15,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:35:15,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:35:15,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196123177] [2023-04-03 06:35:15,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:35:15,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:35:15,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:35:15,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:35:15,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:35:15,573 INFO L87 Difference]: Start difference. First operand 6924 states and 8897 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2023-04-03 06:35:16,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:35:16,817 INFO L93 Difference]: Finished difference Result 13811 states and 17766 transitions. [2023-04-03 06:35:16,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:35:16,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 477 [2023-04-03 06:35:16,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:35:16,858 INFO L225 Difference]: With dead ends: 13811 [2023-04-03 06:35:16,858 INFO L226 Difference]: Without dead ends: 6956 [2023-04-03 06:35:16,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:35:16,889 INFO L413 NwaCegarLoop]: 2097 mSDtfsCounter, 5 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4190 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-03 06:35:16,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4190 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-03 06:35:16,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6956 states. [2023-04-03 06:35:17,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6956 to 6928. [2023-04-03 06:35:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6928 states, 4095 states have (on average 1.2713064713064712) internal successors, (5206), 4255 states have internal predecessors, (5206), 1847 states have call successors, (1847), 989 states have call predecessors, (1847), 985 states have return successors, (1848), 1801 states have call predecessors, (1848), 1845 states have call successors, (1848) [2023-04-03 06:35:17,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 8901 transitions. [2023-04-03 06:35:17,172 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 8901 transitions. Word has length 477 [2023-04-03 06:35:17,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:35:17,174 INFO L495 AbstractCegarLoop]: Abstraction has 6928 states and 8901 transitions. [2023-04-03 06:35:17,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2023-04-03 06:35:17,174 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 8901 transitions. [2023-04-03 06:35:17,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2023-04-03 06:35:17,184 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:35:17,185 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:35:17,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 06:35:17,185 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:35:17,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:35:17,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2023354398, now seen corresponding path program 1 times [2023-04-03 06:35:17,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:35:17,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213059162] [2023-04-03 06:35:17,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:35:17,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:35:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:35:19,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2573 trivial. 0 not checked. [2023-04-03 06:35:19,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:35:19,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213059162] [2023-04-03 06:35:19,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213059162] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:35:19,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:35:19,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 06:35:19,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402022441] [2023-04-03 06:35:19,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:35:19,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 06:35:19,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:35:19,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 06:35:19,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 06:35:19,027 INFO L87 Difference]: Start difference. First operand 6928 states and 8901 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (63), 3 states have call predecessors, (63), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2023-04-03 06:35:20,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:35:20,492 INFO L93 Difference]: Finished difference Result 7374 states and 9326 transitions. [2023-04-03 06:35:20,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 06:35:20,492 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (63), 3 states have call predecessors, (63), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 480 [2023-04-03 06:35:20,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:35:20,530 INFO L225 Difference]: With dead ends: 7374 [2023-04-03 06:35:20,531 INFO L226 Difference]: Without dead ends: 7371 [2023-04-03 06:35:20,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:35:20,537 INFO L413 NwaCegarLoop]: 2132 mSDtfsCounter, 1780 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 4749 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:35:20,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 4749 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 06:35:20,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7371 states. [2023-04-03 06:35:20,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7371 to 7371. [2023-04-03 06:35:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7371 states, 4331 states have (on average 1.2609097206187947) internal successors, (5461), 4498 states have internal predecessors, (5461), 1929 states have call successors, (1929), 1114 states have call predecessors, (1929), 1110 states have return successors, (1930), 1883 states have call predecessors, (1930), 1927 states have call successors, (1930) [2023-04-03 06:35:20,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7371 states to 7371 states and 9320 transitions. [2023-04-03 06:35:20,820 INFO L78 Accepts]: Start accepts. Automaton has 7371 states and 9320 transitions. Word has length 480 [2023-04-03 06:35:20,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:35:20,821 INFO L495 AbstractCegarLoop]: Abstraction has 7371 states and 9320 transitions. [2023-04-03 06:35:20,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (63), 3 states have call predecessors, (63), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2023-04-03 06:35:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 7371 states and 9320 transitions. [2023-04-03 06:35:20,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2023-04-03 06:35:20,847 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:35:20,847 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:35:20,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 06:35:20,848 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:35:20,848 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:35:20,848 INFO L85 PathProgramCache]: Analyzing trace with hash 25601930, now seen corresponding path program 1 times [2023-04-03 06:35:20,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:35:20,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334704246] [2023-04-03 06:35:20,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:35:20,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:35:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:35:21,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2809 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2801 trivial. 0 not checked. [2023-04-03 06:35:21,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:35:21,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334704246] [2023-04-03 06:35:21,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334704246] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:35:21,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:35:21,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:35:21,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806453137] [2023-04-03 06:35:21,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:35:21,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:35:21,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:35:21,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:35:21,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:35:21,611 INFO L87 Difference]: Start difference. First operand 7371 states and 9320 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2023-04-03 06:35:23,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:35:23,766 INFO L93 Difference]: Finished difference Result 17993 states and 22775 transitions. [2023-04-03 06:35:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:35:23,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) Word has length 556 [2023-04-03 06:35:23,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:35:23,818 INFO L225 Difference]: With dead ends: 17993 [2023-04-03 06:35:23,818 INFO L226 Difference]: Without dead ends: 10691 [2023-04-03 06:35:23,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:35:23,844 INFO L413 NwaCegarLoop]: 3389 mSDtfsCounter, 1801 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 5377 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-03 06:35:23,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1801 Valid, 5377 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-03 06:35:23,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10691 states. [2023-04-03 06:35:24,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10691 to 10657. [2023-04-03 06:35:24,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10657 states, 6316 states have (on average 1.2601329955668144) internal successors, (7959), 6567 states have internal predecessors, (7959), 2731 states have call successors, (2731), 1615 states have call predecessors, (2731), 1609 states have return successors, (2735), 2660 states have call predecessors, (2735), 2729 states have call successors, (2735) [2023-04-03 06:35:24,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10657 states to 10657 states and 13425 transitions. [2023-04-03 06:35:24,235 INFO L78 Accepts]: Start accepts. Automaton has 10657 states and 13425 transitions. Word has length 556 [2023-04-03 06:35:24,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:35:24,236 INFO L495 AbstractCegarLoop]: Abstraction has 10657 states and 13425 transitions. [2023-04-03 06:35:24,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2023-04-03 06:35:24,236 INFO L276 IsEmpty]: Start isEmpty. Operand 10657 states and 13425 transitions. [2023-04-03 06:35:24,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2023-04-03 06:35:24,264 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:35:24,265 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:35:24,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 06:35:24,265 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:35:24,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:35:24,266 INFO L85 PathProgramCache]: Analyzing trace with hash -405793271, now seen corresponding path program 1 times [2023-04-03 06:35:24,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:35:24,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930563054] [2023-04-03 06:35:24,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:35:24,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:35:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:35:25,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2816 trivial. 0 not checked. [2023-04-03 06:35:25,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:35:25,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930563054] [2023-04-03 06:35:25,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930563054] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:35:25,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:35:25,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:35:25,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595927301] [2023-04-03 06:35:25,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:35:25,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:35:25,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:35:25,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:35:25,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:35:25,017 INFO L87 Difference]: Start difference. First operand 10657 states and 13425 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (70), 3 states have call predecessors, (70), 2 states have call successors, (70) [2023-04-03 06:35:27,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:35:27,080 INFO L93 Difference]: Finished difference Result 21290 states and 26810 transitions. [2023-04-03 06:35:27,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 06:35:27,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (70), 3 states have call predecessors, (70), 2 states have call successors, (70) Word has length 578 [2023-04-03 06:35:27,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:35:27,136 INFO L225 Difference]: With dead ends: 21290 [2023-04-03 06:35:27,137 INFO L226 Difference]: Without dead ends: 10657 [2023-04-03 06:35:27,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:35:27,170 INFO L413 NwaCegarLoop]: 2095 mSDtfsCounter, 1 mSDsluCounter, 6279 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8374 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-03 06:35:27,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8374 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-03 06:35:27,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10657 states. [2023-04-03 06:35:27,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10657 to 10657. [2023-04-03 06:35:27,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10657 states, 6316 states have (on average 1.2572830905636478) internal successors, (7941), 6567 states have internal predecessors, (7941), 2731 states have call successors, (2731), 1615 states have call predecessors, (2731), 1609 states have return successors, (2735), 2660 states have call predecessors, (2735), 2729 states have call successors, (2735) [2023-04-03 06:35:27,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10657 states to 10657 states and 13407 transitions. [2023-04-03 06:35:27,554 INFO L78 Accepts]: Start accepts. Automaton has 10657 states and 13407 transitions. Word has length 578 [2023-04-03 06:35:27,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:35:27,555 INFO L495 AbstractCegarLoop]: Abstraction has 10657 states and 13407 transitions. [2023-04-03 06:35:27,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 4 states have internal predecessors, (163), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (70), 3 states have call predecessors, (70), 2 states have call successors, (70) [2023-04-03 06:35:27,555 INFO L276 IsEmpty]: Start isEmpty. Operand 10657 states and 13407 transitions. [2023-04-03 06:35:27,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2023-04-03 06:35:27,582 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:35:27,582 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:35:27,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 06:35:27,583 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:35:27,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:35:27,583 INFO L85 PathProgramCache]: Analyzing trace with hash 726559072, now seen corresponding path program 1 times [2023-04-03 06:35:27,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:35:27,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606134852] [2023-04-03 06:35:27,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:35:27,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:35:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:35:32,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2813 trivial. 0 not checked. [2023-04-03 06:35:32,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:35:32,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606134852] [2023-04-03 06:35:32,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606134852] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:35:32,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:35:32,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-03 06:35:32,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656123386] [2023-04-03 06:35:32,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:35:32,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-03 06:35:32,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:35:32,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-03 06:35:32,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2023-04-03 06:35:32,559 INFO L87 Difference]: Start difference. First operand 10657 states and 13407 transitions. Second operand has 16 states, 9 states have (on average 19.444444444444443) internal successors, (175), 11 states have internal predecessors, (175), 5 states have call successors, (83), 2 states have call predecessors, (83), 7 states have return successors, (76), 7 states have call predecessors, (76), 5 states have call successors, (76) [2023-04-03 06:35:39,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:35:39,205 INFO L93 Difference]: Finished difference Result 21281 states and 26774 transitions. [2023-04-03 06:35:39,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-03 06:35:39,206 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 9 states have (on average 19.444444444444443) internal successors, (175), 11 states have internal predecessors, (175), 5 states have call successors, (83), 2 states have call predecessors, (83), 7 states have return successors, (76), 7 states have call predecessors, (76), 5 states have call successors, (76) Word has length 603 [2023-04-03 06:35:39,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:35:39,244 INFO L225 Difference]: With dead ends: 21281 [2023-04-03 06:35:39,244 INFO L226 Difference]: Without dead ends: 10693 [2023-04-03 06:35:39,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:35:39,274 INFO L413 NwaCegarLoop]: 2082 mSDtfsCounter, 11 mSDsluCounter, 29064 mSDsCounter, 0 mSdLazyCounter, 4270 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 31146 SdHoareTripleChecker+Invalid, 4274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:35:39,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 31146 Invalid, 4274 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 4270 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-03 06:35:39,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10693 states. [2023-04-03 06:35:39,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10693 to 10687. [2023-04-03 06:35:39,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10687 states, 6334 states have (on average 1.2565519419008526) internal successors, (7959), 6587 states have internal predecessors, (7959), 2738 states have call successors, (2738), 1615 states have call predecessors, (2738), 1614 states have return successors, (2747), 2670 states have call predecessors, (2747), 2736 states have call successors, (2747) [2023-04-03 06:35:39,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10687 states to 10687 states and 13444 transitions. [2023-04-03 06:35:39,689 INFO L78 Accepts]: Start accepts. Automaton has 10687 states and 13444 transitions. Word has length 603 [2023-04-03 06:35:39,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:35:39,690 INFO L495 AbstractCegarLoop]: Abstraction has 10687 states and 13444 transitions. [2023-04-03 06:35:39,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 9 states have (on average 19.444444444444443) internal successors, (175), 11 states have internal predecessors, (175), 5 states have call successors, (83), 2 states have call predecessors, (83), 7 states have return successors, (76), 7 states have call predecessors, (76), 5 states have call successors, (76) [2023-04-03 06:35:39,690 INFO L276 IsEmpty]: Start isEmpty. Operand 10687 states and 13444 transitions. [2023-04-03 06:35:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2023-04-03 06:35:39,715 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:35:39,715 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 9, 9, 9, 9, 9, 9, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:35:39,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 06:35:39,715 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:35:39,716 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:35:39,716 INFO L85 PathProgramCache]: Analyzing trace with hash 307752003, now seen corresponding path program 1 times [2023-04-03 06:35:39,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:35:39,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387356837] [2023-04-03 06:35:39,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:35:39,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:35:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:35:40,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2597 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2597 trivial. 0 not checked. [2023-04-03 06:35:40,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:35:40,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387356837] [2023-04-03 06:35:40,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387356837] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:35:40,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:35:40,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 06:35:40,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470431657] [2023-04-03 06:35:40,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:35:40,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 06:35:40,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:35:40,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 06:35:40,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 06:35:40,508 INFO L87 Difference]: Start difference. First operand 10687 states and 13444 transitions. Second operand has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (91), 4 states have call predecessors, (91), 3 states have call successors, (91) [2023-04-03 06:35:43,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:35:43,202 INFO L93 Difference]: Finished difference Result 21353 states and 26869 transitions. [2023-04-03 06:35:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 06:35:43,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (91), 4 states have call predecessors, (91), 3 states have call successors, (91) Word has length 633 [2023-04-03 06:35:43,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:35:43,235 INFO L225 Difference]: With dead ends: 21353 [2023-04-03 06:35:43,236 INFO L226 Difference]: Without dead ends: 10735 [2023-04-03 06:35:43,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-03 06:35:43,259 INFO L413 NwaCegarLoop]: 2095 mSDtfsCounter, 14 mSDsluCounter, 8295 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 10390 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:35:43,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 10390 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-03 06:35:43,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10735 states. [2023-04-03 06:35:43,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10735 to 10711. [2023-04-03 06:35:43,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10711 states, 6352 states have (on average 1.2558249370277077) internal successors, (7977), 6605 states have internal predecessors, (7977), 2738 states have call successors, (2738), 1615 states have call predecessors, (2738), 1620 states have return successors, (2753), 2676 states have call predecessors, (2753), 2736 states have call successors, (2753) [2023-04-03 06:35:43,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10711 states to 10711 states and 13468 transitions. [2023-04-03 06:35:43,610 INFO L78 Accepts]: Start accepts. Automaton has 10711 states and 13468 transitions. Word has length 633 [2023-04-03 06:35:43,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:35:43,611 INFO L495 AbstractCegarLoop]: Abstraction has 10711 states and 13468 transitions. [2023-04-03 06:35:43,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 5 states have internal predecessors, (190), 3 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (91), 4 states have call predecessors, (91), 3 states have call successors, (91) [2023-04-03 06:35:43,612 INFO L276 IsEmpty]: Start isEmpty. Operand 10711 states and 13468 transitions. [2023-04-03 06:35:43,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2023-04-03 06:35:43,638 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:35:43,638 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:35:43,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 06:35:43,639 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:35:43,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:35:43,639 INFO L85 PathProgramCache]: Analyzing trace with hash 143953099, now seen corresponding path program 1 times [2023-04-03 06:35:43,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:35:43,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345330681] [2023-04-03 06:35:43,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:35:43,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:35:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:35:45,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2849 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 2829 trivial. 0 not checked. [2023-04-03 06:35:45,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:35:45,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345330681] [2023-04-03 06:35:45,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345330681] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:35:45,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19694142] [2023-04-03 06:35:45,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:35:45,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:35:45,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:35:45,561 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:35:45,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 06:35:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:35:47,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 5844 conjuncts, 29 conjunts are in the unsatisfiable core [2023-04-03 06:35:47,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:35:47,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-04-03 06:35:47,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-04-03 06:35:47,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2849 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 2675 trivial. 0 not checked. [2023-04-03 06:35:47,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:35:47,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19694142] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:35:47,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:35:47,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7] total 17 [2023-04-03 06:35:47,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383462682] [2023-04-03 06:35:47,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:35:47,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-03 06:35:47,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:35:47,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-03 06:35:47,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-04-03 06:35:47,487 INFO L87 Difference]: Start difference. First operand 10711 states and 13468 transitions. Second operand has 12 states, 10 states have (on average 18.9) internal successors, (189), 9 states have internal predecessors, (189), 5 states have call successors, (87), 5 states have call predecessors, (87), 6 states have return successors, (81), 7 states have call predecessors, (81), 5 states have call successors, (81) [2023-04-03 06:35:58,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:35:58,988 INFO L93 Difference]: Finished difference Result 31846 states and 40392 transitions. [2023-04-03 06:35:58,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-03 06:35:58,989 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 18.9) internal successors, (189), 9 states have internal predecessors, (189), 5 states have call successors, (87), 5 states have call predecessors, (87), 6 states have return successors, (81), 7 states have call predecessors, (81), 5 states have call successors, (81) Word has length 629 [2023-04-03 06:35:58,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:35:59,071 INFO L225 Difference]: With dead ends: 31846 [2023-04-03 06:35:59,072 INFO L226 Difference]: Without dead ends: 21204 [2023-04-03 06:35:59,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 618 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2023-04-03 06:35:59,107 INFO L413 NwaCegarLoop]: 3106 mSDtfsCounter, 2357 mSDsluCounter, 18780 mSDsCounter, 0 mSdLazyCounter, 11694 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2357 SdHoareTripleChecker+Valid, 21886 SdHoareTripleChecker+Invalid, 11753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 11694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:35:59,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2357 Valid, 21886 Invalid, 11753 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 11694 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2023-04-03 06:35:59,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21204 states. [2023-04-03 06:35:59,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21204 to 20232. [2023-04-03 06:35:59,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20232 states, 12397 states have (on average 1.287488908606921) internal successors, (15961), 12928 states have internal predecessors, (15961), 4821 states have call successors, (4821), 3042 states have call predecessors, (4821), 3013 states have return successors, (5041), 4575 states have call predecessors, (5041), 4819 states have call successors, (5041) [2023-04-03 06:35:59,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20232 states to 20232 states and 25823 transitions. [2023-04-03 06:35:59,997 INFO L78 Accepts]: Start accepts. Automaton has 20232 states and 25823 transitions. Word has length 629 [2023-04-03 06:35:59,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:35:59,998 INFO L495 AbstractCegarLoop]: Abstraction has 20232 states and 25823 transitions. [2023-04-03 06:35:59,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 18.9) internal successors, (189), 9 states have internal predecessors, (189), 5 states have call successors, (87), 5 states have call predecessors, (87), 6 states have return successors, (81), 7 states have call predecessors, (81), 5 states have call successors, (81) [2023-04-03 06:35:59,999 INFO L276 IsEmpty]: Start isEmpty. Operand 20232 states and 25823 transitions. [2023-04-03 06:36:00,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2023-04-03 06:36:00,040 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:36:00,041 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 9, 9, 9, 9, 9, 9, 6, 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:36:00,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 06:36:00,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-04-03 06:36:00,263 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:36:00,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:36:00,264 INFO L85 PathProgramCache]: Analyzing trace with hash -247791957, now seen corresponding path program 1 times [2023-04-03 06:36:00,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:36:00,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841093493] [2023-04-03 06:36:00,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:36:00,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:36:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:36:02,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2901 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2023-04-03 06:36:02,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:36:02,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841093493] [2023-04-03 06:36:02,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841093493] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:36:02,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986268130] [2023-04-03 06:36:02,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:36:02,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:36:02,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:36:02,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:36:02,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 06:36:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:36:03,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 6074 conjuncts, 286 conjunts are in the unsatisfiable core [2023-04-03 06:36:03,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:36:03,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:36:03,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:36:03,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-03 06:36:03,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-03 06:36:04,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-03 06:36:04,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-03 06:36:04,195 INFO L321 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2023-04-03 06:36:04,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 53 [2023-04-03 06:36:04,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:36:04,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-03 06:36:04,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-04-03 06:36:04,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2023-04-03 06:36:04,675 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-04-03 06:36:04,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-04-03 06:36:04,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-04-03 06:36:05,060 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-04-03 06:36:05,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 19 [2023-04-03 06:36:05,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-04-03 06:36:05,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:36:06,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:36:06,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2023-04-03 06:36:06,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:36:06,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:36:06,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:36:06,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 06:36:11,237 WARN L861 $PredicateComparison]: unable to prove that (and (not (= c_~netfront_driver_group0~0.base 0)) (exists ((v_ArrVal_2904 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_dev_set_drvdata_#in~dev.base| v_ArrVal_2904) |c_#memory_$Pointer$.base|)) (not (= c_~xennet_ethtool_ops_group0~0.base c_~netfront_driver_group0~0.base)) (not (= c_~xennet_ethtool_ops_group0~0.base 0)) (exists ((v_ArrVal_2903 (Array Int Int))) (= (store |c_old(#memory_int)| |c_dev_set_drvdata_#in~dev.base| v_ArrVal_2903) |c_#memory_int|))) is different from true [2023-04-03 06:36:11,256 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-04-03 06:36:11,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2023-04-03 06:36:11,266 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-04-03 06:36:11,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-04-03 06:36:13,381 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-03 06:36:13,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 34 [2023-04-03 06:36:13,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-04-03 06:36:13,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 06:36:14,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:36:14,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 06:36:14,362 INFO L321 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2023-04-03 06:36:14,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 34 [2023-04-03 06:36:14,375 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-04-03 06:36:14,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-04-03 06:36:14,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-04-03 06:36:17,282 INFO L321 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2023-04-03 06:36:17,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 57 [2023-04-03 06:36:17,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-04-03 06:36:17,346 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-04-03 06:36:17,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 19 [2023-04-03 06:36:35,671 WARN L223 SmtUtils]: Spent 12.05s on a formula simplification. DAG size of input: 63 DAG size of output: 30 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-04-03 06:36:36,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-04-03 06:36:36,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2901 backedges. 943 proven. 100 refuted. 10 times theorem prover too weak. 1848 trivial. 0 not checked. [2023-04-03 06:36:36,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 06:36:46,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986268130] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:36:46,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1454927870] [2023-04-03 06:36:46,854 INFO L159 IcfgInterpreter]: Started Sifa with 322 locations of interest [2023-04-03 06:36:46,854 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 06:36:46,858 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 06:36:46,862 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 06:36:46,862 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 06:37:01,212 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 205 for LOIs [2023-04-03 06:37:09,107 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 246 for LOIs [2023-04-03 06:37:30,126 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-04-03 06:37:31,580 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9