/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 IntervalDomain -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 01:17:15,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 01:17:15,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 01:17:15,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 01:17:15,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 01:17:15,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 01:17:15,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 01:17:15,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 01:17:15,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 01:17:15,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 01:17:15,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 01:17:15,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 01:17:15,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 01:17:15,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 01:17:15,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 01:17:15,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 01:17:15,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 01:17:15,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 01:17:15,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 01:17:15,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 01:17:15,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 01:17:15,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 01:17:15,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 01:17:15,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 01:17:15,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 01:17:15,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 01:17:15,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 01:17:15,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 01:17:15,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 01:17:15,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 01:17:15,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 01:17:15,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 01:17:15,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 01:17:15,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 01:17:15,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 01:17:15,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 01:17:15,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 01:17:15,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 01:17:15,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 01:17:15,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 01:17:15,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 01:17:15,098 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 [2023-04-01 01:17:15,121 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 01:17:15,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 01:17:15,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 01:17:15,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 01:17:15,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 01:17:15,123 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 01:17:15,123 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 01:17:15,123 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 01:17:15,123 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 01:17:15,123 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 01:17:15,124 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 01:17:15,124 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 01:17:15,124 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 01:17:15,124 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 01:17:15,124 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 01:17:15,124 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 01:17:15,124 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 01:17:15,125 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 01:17:15,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 01:17:15,125 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 01:17:15,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 01:17:15,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 01:17:15,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 01:17:15,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 01:17:15,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 01:17:15,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 01:17:15,126 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 01:17:15,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 01:17:15,126 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 01:17:15,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 01:17:15,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 01:17:15,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 01:17:15,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:17:15,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 01:17:15,127 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 01:17:15,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 01:17:15,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 01:17:15,127 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 01:17:15,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 01:17:15,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 01:17:15,127 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 01:17:15,127 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 01:17:15,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 01:17:15,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 01:17:15,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 01:17:15,359 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 01:17:15,360 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 01:17:15,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2023-04-01 01:17:16,431 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 01:17:16,781 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 01:17:16,781 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2023-04-01 01:17:16,810 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcf2a26bd/d98549d0a9b8454aa997c594f564d762/FLAG884bf4398 [2023-04-01 01:17:16,828 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcf2a26bd/d98549d0a9b8454aa997c594f564d762 [2023-04-01 01:17:16,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 01:17:16,831 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 01:17:16,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 01:17:16,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 01:17:16,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 01:17:16,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:17:16" (1/1) ... [2023-04-01 01:17:16,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21098f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:16, skipping insertion in model container [2023-04-01 01:17:16,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:17:16" (1/1) ... [2023-04-01 01:17:16,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 01:17:16,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 01:17:17,340 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2023-04-01 01:17:17,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:17:17,553 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 01:17:17,643 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-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2023-04-01 01:17:17,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:17:17,717 INFO L208 MainTranslator]: Completed translation [2023-04-01 01:17:17,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:17 WrapperNode [2023-04-01 01:17:17,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 01:17:17,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 01:17:17,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 01:17:17,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 01:17:17,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:17" (1/1) ... [2023-04-01 01:17:17,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:17" (1/1) ... [2023-04-01 01:17:17,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:17" (1/1) ... [2023-04-01 01:17:17,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:17" (1/1) ... [2023-04-01 01:17:17,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:17" (1/1) ... [2023-04-01 01:17:17,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:17" (1/1) ... [2023-04-01 01:17:17,847 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:17" (1/1) ... [2023-04-01 01:17:17,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:17" (1/1) ... [2023-04-01 01:17:17,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 01:17:17,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 01:17:17,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 01:17:17,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 01:17:17,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:17" (1/1) ... [2023-04-01 01:17:17,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:17:17,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:17:17,897 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) [2023-04-01 01:17:17,921 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 [2023-04-01 01:17:17,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 01:17:17,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 01:17:17,936 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 01:17:17,936 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-01 01:17:17,937 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-04-01 01:17:17,937 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2023-04-01 01:17:17,937 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_tail_pointer [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-04-01 01:17:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_rx_fixup [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_tx_fixup [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_bind [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure gl620a_driver_init [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure gl620a_driver_exit [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2023-04-01 01:17:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2023-04-01 01:17:17,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_13 [2023-04-01 01:17:17,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_14 [2023-04-01 01:17:17,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2023-04-01 01:17:17,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-04-01 01:17:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-04-01 01:17:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2023-04-01 01:17:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2023-04-01 01:17:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-01 01:17:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-01 01:17:17,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-01 01:17:17,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-01 01:17:17,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-04-01 01:17:17,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 01:17:17,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-04-01 01:17:17,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2023-04-01 01:17:17,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2023-04-01 01:17:17,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2023-04-01 01:17:17,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2023-04-01 01:17:17,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 01:17:17,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2023-04-01 01:17:17,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-04-01 01:17:17,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2023-04-01 01:17:17,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2023-04-01 01:17:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2023-04-01 01:17:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-04-01 01:17:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-04-01 01:17:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-01 01:17:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-01 01:17:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-01 01:17:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2023-04-01 01:17:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2023-04-01 01:17:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2023-04-01 01:17:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2023-04-01 01:17:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2023-04-01 01:17:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 01:17:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 01:17:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 01:17:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 01:17:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-04-01 01:17:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 01:17:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 01:17:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 01:17:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 01:17:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 01:17:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 01:17:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 01:17:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-04-01 01:17:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 01:17:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2023-04-01 01:17:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-01 01:17:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 01:17:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2023-04-01 01:17:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2023-04-01 01:17:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2023-04-01 01:17:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2023-04-01 01:17:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2023-04-01 01:17:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2023-04-01 01:17:17,947 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2023-04-01 01:17:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-04-01 01:17:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 01:17:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2023-04-01 01:17:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2023-04-01 01:17:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_tail_pointer [2023-04-01 01:17:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 01:17:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2023-04-01 01:17:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-01 01:17:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-04-01 01:17:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-04-01 01:17:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2023-04-01 01:17:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2023-04-01 01:17:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-04-01 01:17:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-04-01 01:17:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 01:17:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 01:17:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 01:17:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 01:17:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 01:17:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 01:17:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 01:17:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 01:17:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 01:17:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 01:17:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 01:17:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 01:17:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 01:17:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-01 01:17:17,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2023-04-01 01:17:17,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2023-04-01 01:17:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2023-04-01 01:17:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-04-01 01:17:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-01 01:17:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_13 [2023-04-01 01:17:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-01 01:17:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_14 [2023-04-01 01:17:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_rx_fixup [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_tx_fixup [2023-04-01 01:17:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_bind [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure gl620a_driver_init [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure gl620a_driver_exit [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-01 01:17:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 01:17:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 01:17:18,290 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 01:17:18,293 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 01:17:18,387 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 01:17:19,970 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 01:17:20,057 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 01:17:20,057 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-01 01:17:20,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:17:20 BoogieIcfgContainer [2023-04-01 01:17:20,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 01:17:20,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 01:17:20,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 01:17:20,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 01:17:20,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 01:17:16" (1/3) ... [2023-04-01 01:17:20,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e61fdca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:17:20, skipping insertion in model container [2023-04-01 01:17:20,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:17:17" (2/3) ... [2023-04-01 01:17:20,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e61fdca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:17:20, skipping insertion in model container [2023-04-01 01:17:20,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:17:20" (3/3) ... [2023-04-01 01:17:20,065 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2023-04-01 01:17:20,078 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 01:17:20,078 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 01:17:20,114 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 01:17:20,118 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;@49be76cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 01:17:20,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 01:17:20,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 340 states, 206 states have (on average 1.3155339805825244) internal successors, (271), 214 states have internal predecessors, (271), 77 states have call successors, (77), 53 states have call predecessors, (77), 52 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-04-01 01:17:20,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-01 01:17:20,133 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:20,134 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 01:17:20,134 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:20,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:20,138 INFO L85 PathProgramCache]: Analyzing trace with hash -907523296, now seen corresponding path program 1 times [2023-04-01 01:17:20,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:20,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322055817] [2023-04-01 01:17:20,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:20,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:20,686 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-01 01:17:20,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:20,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322055817] [2023-04-01 01:17:20,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322055817] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:20,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:20,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:17:20,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402008666] [2023-04-01 01:17:20,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:20,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:17:20,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:20,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:17:20,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:20,727 INFO L87 Difference]: Start difference. First operand has 340 states, 206 states have (on average 1.3155339805825244) internal successors, (271), 214 states have internal predecessors, (271), 77 states have call successors, (77), 53 states have call predecessors, (77), 52 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-01 01:17:21,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:21,956 INFO L93 Difference]: Finished difference Result 903 states and 1155 transitions. [2023-04-01 01:17:21,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:17:21,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 59 [2023-04-01 01:17:21,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:21,994 INFO L225 Difference]: With dead ends: 903 [2023-04-01 01:17:21,994 INFO L226 Difference]: Without dead ends: 575 [2023-04-01 01:17:22,004 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 [2023-04-01 01:17:22,006 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 344 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-01 01:17:22,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 709 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-01 01:17:22,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-04-01 01:17:22,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2023-04-01 01:17:22,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 365 states have (on average 1.3041095890410959) internal successors, (476), 367 states have internal predecessors, (476), 124 states have call successors, (124), 88 states have call predecessors, (124), 85 states have return successors, (121), 121 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-01 01:17:22,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 721 transitions. [2023-04-01 01:17:22,125 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 721 transitions. Word has length 59 [2023-04-01 01:17:22,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:22,125 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 721 transitions. [2023-04-01 01:17:22,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-01 01:17:22,126 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 721 transitions. [2023-04-01 01:17:22,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-04-01 01:17:22,129 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:22,130 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-04-01 01:17:22,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 01:17:22,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:22,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:22,130 INFO L85 PathProgramCache]: Analyzing trace with hash -44562206, now seen corresponding path program 1 times [2023-04-01 01:17:22,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:22,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122887061] [2023-04-01 01:17:22,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:22,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:22,452 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-01 01:17:22,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:22,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122887061] [2023-04-01 01:17:22,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122887061] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:22,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:22,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 01:17:22,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633258042] [2023-04-01 01:17:22,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:22,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 01:17:22,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:22,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 01:17:22,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 01:17:22,456 INFO L87 Difference]: Start difference. First operand 575 states and 721 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-01 01:17:24,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:24,299 INFO L93 Difference]: Finished difference Result 1132 states and 1428 transitions. [2023-04-01 01:17:24,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 01:17:24,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 73 [2023-04-01 01:17:24,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:24,306 INFO L225 Difference]: With dead ends: 1132 [2023-04-01 01:17:24,306 INFO L226 Difference]: Without dead ends: 1111 [2023-04-01 01:17:24,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 01:17:24,308 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 373 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-01 01:17:24,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1587 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-01 01:17:24,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1111 states. [2023-04-01 01:17:24,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1111 to 1111. [2023-04-01 01:17:24,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 712 states have (on average 1.3061797752808988) internal successors, (930), 718 states have internal predecessors, (930), 234 states have call successors, (234), 165 states have call predecessors, (234), 164 states have return successors, (241), 231 states have call predecessors, (241), 231 states have call successors, (241) [2023-04-01 01:17:24,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1405 transitions. [2023-04-01 01:17:24,345 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1405 transitions. Word has length 73 [2023-04-01 01:17:24,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:24,345 INFO L495 AbstractCegarLoop]: Abstraction has 1111 states and 1405 transitions. [2023-04-01 01:17:24,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-01 01:17:24,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1405 transitions. [2023-04-01 01:17:24,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-04-01 01:17:24,351 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:24,351 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2023-04-01 01:17:24,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 01:17:24,351 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:24,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:24,352 INFO L85 PathProgramCache]: Analyzing trace with hash 442437411, now seen corresponding path program 1 times [2023-04-01 01:17:24,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:24,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324184360] [2023-04-01 01:17:24,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:24,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-04-01 01:17:24,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:24,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324184360] [2023-04-01 01:17:24,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324184360] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:24,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:24,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:17:24,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52360857] [2023-04-01 01:17:24,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:24,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:17:24,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:24,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:17:24,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:24,566 INFO L87 Difference]: Start difference. First operand 1111 states and 1405 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-01 01:17:25,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:25,008 INFO L93 Difference]: Finished difference Result 2497 states and 3166 transitions. [2023-04-01 01:17:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:17:25,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 150 [2023-04-01 01:17:25,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:25,014 INFO L225 Difference]: With dead ends: 2497 [2023-04-01 01:17:25,015 INFO L226 Difference]: Without dead ends: 1408 [2023-04-01 01:17:25,018 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 [2023-04-01 01:17:25,019 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 144 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 01:17:25,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 678 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 01:17:25,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2023-04-01 01:17:25,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1387. [2023-04-01 01:17:25,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 911 states have (on average 1.3260153677277717) internal successors, (1208), 917 states have internal predecessors, (1208), 274 states have call successors, (274), 202 states have call predecessors, (274), 201 states have return successors, (281), 271 states have call predecessors, (281), 271 states have call successors, (281) [2023-04-01 01:17:25,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 1763 transitions. [2023-04-01 01:17:25,069 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 1763 transitions. Word has length 150 [2023-04-01 01:17:25,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:25,069 INFO L495 AbstractCegarLoop]: Abstraction has 1387 states and 1763 transitions. [2023-04-01 01:17:25,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-01 01:17:25,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 1763 transitions. [2023-04-01 01:17:25,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-01 01:17:25,074 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:25,074 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-01 01:17:25,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 01:17:25,074 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:25,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:25,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1929341039, now seen corresponding path program 1 times [2023-04-01 01:17:25,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:25,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293680653] [2023-04-01 01:17:25,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:25,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:25,238 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-04-01 01:17:25,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:25,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293680653] [2023-04-01 01:17:25,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293680653] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:25,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:25,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:17:25,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940355984] [2023-04-01 01:17:25,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:25,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:17:25,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:25,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:17:25,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:17:25,240 INFO L87 Difference]: Start difference. First operand 1387 states and 1763 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, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-01 01:17:26,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:26,108 INFO L93 Difference]: Finished difference Result 3725 states and 4734 transitions. [2023-04-01 01:17:26,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:17:26,109 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, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 182 [2023-04-01 01:17:26,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:26,117 INFO L225 Difference]: With dead ends: 3725 [2023-04-01 01:17:26,118 INFO L226 Difference]: Without dead ends: 2372 [2023-04-01 01:17:26,122 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 [2023-04-01 01:17:26,125 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 345 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 01:17:26,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 802 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 01:17:26,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states. [2023-04-01 01:17:26,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 2351. [2023-04-01 01:17:26,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2351 states, 1551 states have (on average 1.312701482914249) internal successors, (2036), 1563 states have internal predecessors, (2036), 456 states have call successors, (456), 342 states have call predecessors, (456), 343 states have return successors, (469), 453 states have call predecessors, (469), 453 states have call successors, (469) [2023-04-01 01:17:26,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2351 states to 2351 states and 2961 transitions. [2023-04-01 01:17:26,202 INFO L78 Accepts]: Start accepts. Automaton has 2351 states and 2961 transitions. Word has length 182 [2023-04-01 01:17:26,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:26,202 INFO L495 AbstractCegarLoop]: Abstraction has 2351 states and 2961 transitions. [2023-04-01 01:17:26,202 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, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-01 01:17:26,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2351 states and 2961 transitions. [2023-04-01 01:17:26,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-01 01:17:26,206 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:26,207 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-01 01:17:26,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 01:17:26,207 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:26,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:26,207 INFO L85 PathProgramCache]: Analyzing trace with hash 2060012357, now seen corresponding path program 1 times [2023-04-01 01:17:26,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:26,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827956696] [2023-04-01 01:17:26,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:26,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:26,531 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-04-01 01:17:26,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:26,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827956696] [2023-04-01 01:17:26,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827956696] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:26,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:26,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 01:17:26,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085441160] [2023-04-01 01:17:26,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:26,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 01:17:26,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:26,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 01:17:26,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 01:17:26,533 INFO L87 Difference]: Start difference. First operand 2351 states and 2961 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 01:17:28,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:28,767 INFO L93 Difference]: Finished difference Result 4722 states and 5991 transitions. [2023-04-01 01:17:28,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 01:17:28,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 182 [2023-04-01 01:17:28,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:28,777 INFO L225 Difference]: With dead ends: 4722 [2023-04-01 01:17:28,777 INFO L226 Difference]: Without dead ends: 2405 [2023-04-01 01:17:28,782 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 [2023-04-01 01:17:28,783 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 2 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-01 01:17:28,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1380 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-01 01:17:28,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2023-04-01 01:17:28,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2391. [2023-04-01 01:17:28,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2391 states, 1579 states have (on average 1.3071564281190626) internal successors, (2064), 1595 states have internal predecessors, (2064), 456 states have call successors, (456), 342 states have call predecessors, (456), 355 states have return successors, (489), 461 states have call predecessors, (489), 453 states have call successors, (489) [2023-04-01 01:17:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 3009 transitions. [2023-04-01 01:17:28,857 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 3009 transitions. Word has length 182 [2023-04-01 01:17:28,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:28,857 INFO L495 AbstractCegarLoop]: Abstraction has 2391 states and 3009 transitions. [2023-04-01 01:17:28,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 01:17:28,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 3009 transitions. [2023-04-01 01:17:28,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-04-01 01:17:28,863 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:28,863 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-01 01:17:28,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 01:17:28,863 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:28,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:28,864 INFO L85 PathProgramCache]: Analyzing trace with hash -825517830, now seen corresponding path program 1 times [2023-04-01 01:17:28,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:28,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784629509] [2023-04-01 01:17:28,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:28,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:29,274 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-04-01 01:17:29,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:29,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784629509] [2023-04-01 01:17:29,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784629509] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:29,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:17:29,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-01 01:17:29,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568110510] [2023-04-01 01:17:29,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:29,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-01 01:17:29,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:29,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-01 01:17:29,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-04-01 01:17:29,278 INFO L87 Difference]: Start difference. First operand 2391 states and 3009 transitions. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 8 states have internal predecessors, (96), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 7 states have call predecessors, (30), 5 states have call successors, (30) [2023-04-01 01:17:33,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:33,767 INFO L93 Difference]: Finished difference Result 4810 states and 6091 transitions. [2023-04-01 01:17:33,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-01 01:17:33,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 8 states have internal predecessors, (96), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 7 states have call predecessors, (30), 5 states have call successors, (30) Word has length 190 [2023-04-01 01:17:33,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:33,778 INFO L225 Difference]: With dead ends: 4810 [2023-04-01 01:17:33,778 INFO L226 Difference]: Without dead ends: 2453 [2023-04-01 01:17:33,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-04-01 01:17:33,784 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 10 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-01 01:17:33,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3149 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-01 01:17:33,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2453 states. [2023-04-01 01:17:33,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2453 to 2431. [2023-04-01 01:17:33,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2431 states, 1607 states have (on average 1.2968263845675172) internal successors, (2084), 1623 states have internal predecessors, (2084), 460 states have call successors, (460), 342 states have call predecessors, (460), 363 states have return successors, (501), 473 states have call predecessors, (501), 457 states have call successors, (501) [2023-04-01 01:17:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2431 states to 2431 states and 3045 transitions. [2023-04-01 01:17:33,867 INFO L78 Accepts]: Start accepts. Automaton has 2431 states and 3045 transitions. Word has length 190 [2023-04-01 01:17:33,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:33,868 INFO L495 AbstractCegarLoop]: Abstraction has 2431 states and 3045 transitions. [2023-04-01 01:17:33,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 8 states have internal predecessors, (96), 5 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (30), 7 states have call predecessors, (30), 5 states have call successors, (30) [2023-04-01 01:17:33,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2431 states and 3045 transitions. [2023-04-01 01:17:33,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-04-01 01:17:33,873 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:33,873 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2023-04-01 01:17:33,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 01:17:33,874 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:33,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:33,874 INFO L85 PathProgramCache]: Analyzing trace with hash -396903653, now seen corresponding path program 1 times [2023-04-01 01:17:33,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:33,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990467525] [2023-04-01 01:17:33,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:33,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:34,246 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2023-04-01 01:17:34,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:34,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990467525] [2023-04-01 01:17:34,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990467525] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:17:34,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064662280] [2023-04-01 01:17:34,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:34,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:17:34,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:17:34,250 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) [2023-04-01 01:17:34,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 01:17:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:34,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-01 01:17:34,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:17:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-04-01 01:17:34,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 01:17:34,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064662280] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:17:34,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 01:17:34,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2023-04-01 01:17:34,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651149366] [2023-04-01 01:17:34,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:17:34,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 01:17:34,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:17:34,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 01:17:34,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 01:17:34,783 INFO L87 Difference]: Start difference. First operand 2431 states and 3045 transitions. Second operand has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-01 01:17:36,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:17:36,753 INFO L93 Difference]: Finished difference Result 4836 states and 6063 transitions. [2023-04-01 01:17:36,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 01:17:36,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 196 [2023-04-01 01:17:36,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:17:36,762 INFO L225 Difference]: With dead ends: 4836 [2023-04-01 01:17:36,763 INFO L226 Difference]: Without dead ends: 2432 [2023-04-01 01:17:36,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-04-01 01:17:36,769 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 1 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-01 01:17:36,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1044 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-01 01:17:36,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2023-04-01 01:17:36,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2432. [2023-04-01 01:17:36,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 1608 states have (on average 1.296641791044776) internal successors, (2085), 1624 states have internal predecessors, (2085), 460 states have call successors, (460), 342 states have call predecessors, (460), 363 states have return successors, (501), 473 states have call predecessors, (501), 457 states have call successors, (501) [2023-04-01 01:17:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3046 transitions. [2023-04-01 01:17:36,859 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3046 transitions. Word has length 196 [2023-04-01 01:17:36,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:17:36,860 INFO L495 AbstractCegarLoop]: Abstraction has 2432 states and 3046 transitions. [2023-04-01 01:17:36,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-01 01:17:36,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3046 transitions. [2023-04-01 01:17:36,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-04-01 01:17:36,865 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:17:36,865 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2023-04-01 01:17:36,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 01:17:37,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:17:37,080 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:17:37,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:17:37,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2048356297, now seen corresponding path program 1 times [2023-04-01 01:17:37,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:17:37,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194669709] [2023-04-01 01:17:37,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:37,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:17:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:37,584 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-04-01 01:17:37,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:17:37,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194669709] [2023-04-01 01:17:37,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194669709] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:17:37,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100822926] [2023-04-01 01:17:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:17:37,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:17:37,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:17:37,586 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) [2023-04-01 01:17:37,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 01:17:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:17:38,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 1923 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-01 01:17:38,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:17:38,164 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-04-01 01:17:38,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 01:17:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-04-01 01:17:38,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100822926] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 01:17:38,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1729260903] [2023-04-01 01:17:38,397 INFO L159 IcfgInterpreter]: Started Sifa with 145 locations of interest [2023-04-01 01:17:38,397 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 01:17:38,400 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 01:17:38,403 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 01:17:38,404 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 01:17:41,306 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 142 for LOIs [2023-04-01 01:17:42,149 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 148 for LOIs [2023-04-01 01:17:50,536 INFO L197 IcfgInterpreter]: Interpreting procedure genelink_rx_fixup with input of size 120 for LOIs [2023-04-01 01:17:52,422 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_alloc_skb_12 with input of size 113 for LOIs [2023-04-01 01:17:52,700 INFO L197 IcfgInterpreter]: Interpreting procedure skb_pull with input of size 99 for LOIs [2023-04-01 01:17:53,025 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 98 for LOIs [2023-04-01 01:17:53,150 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_initialize with input of size 99 for LOIs [2023-04-01 01:17:53,249 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_set_init with input of size 103 for LOIs [2023-04-01 01:17:53,266 INFO L197 IcfgInterpreter]: Interpreting procedure gl620a_driver_exit with input of size 92 for LOIs [2023-04-01 01:17:53,345 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_usb_deregister_14 with input of size 96 for LOIs [2023-04-01 01:17:53,462 INFO L197 IcfgInterpreter]: Interpreting procedure usb_deregister with input of size 94 for LOIs [2023-04-01 01:17:53,475 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_check_final_state with input of size 90 for LOIs [2023-04-01 01:17:53,596 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_error with input of size 90 for LOIs [2023-04-01 01:17:53,607 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_set_is_empty with input of size 94 for LOIs [2023-04-01 01:17:53,623 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 106 for LOIs [2023-04-01 01:17:53,701 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_initialize_driver_info_2 with input of size 109 for LOIs [2023-04-01 01:17:53,931 INFO L197 IcfgInterpreter]: Interpreting procedure gl620a_driver_init with input of size 107 for LOIs [2023-04-01 01:17:54,110 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_usb_register_driver_13 with input of size 122 for LOIs [2023-04-01 01:17:54,465 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_usb_driver_1 with input of size 103 for LOIs [2023-04-01 01:17:54,572 INFO L197 IcfgInterpreter]: Interpreting procedure usb_register_driver with input of size 104 for LOIs [2023-04-01 01:17:54,591 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_skb_alloc with input of size 110 for LOIs [2023-04-01 01:17:54,868 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_set_add with input of size 113 for LOIs [2023-04-01 01:17:54,963 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_zalloc with input of size 103 for LOIs [2023-04-01 01:17:55,602 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 132 for LOIs [2023-04-01 01:17:55,647 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 105 for LOIs [2023-04-01 01:17:55,661 INFO L180 IcfgInterpreter]: Interpretation finished