/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:14:56,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:14:56,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:14:56,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:14:56,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:14:56,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:14:56,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:14:56,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:14:56,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:14:56,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:14:56,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:14:56,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:14:56,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:14:56,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:14:56,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:14:56,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:14:56,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:14:56,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:14:56,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:14:56,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:14:56,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:14:56,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:14:56,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:14:56,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:14:56,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:14:56,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:14:56,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:14:56,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:14:56,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:14:56,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:14:56,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:14:56,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:14:56,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:14:56,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:14:56,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:14:56,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:14:56,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:14:56,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:14:56,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:14:56,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:14:56,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:14:56,247 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:14:56,276 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:14:56,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:14:56,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:14:56,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:14:56,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:14:56,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:14:56,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:14:56,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:14:56,280 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:14:56,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:14:56,280 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:14:56,281 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:14:56,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:14:56,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:14:56,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:14:56,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:14:56,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:14:56,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:14:56,282 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:14:56,282 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:14:56,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:14:56,283 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:14:56,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:14:56,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:14:56,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:14:56,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:14:56,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:14:56,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:14:56,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:14:56,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:14:56,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:14:56,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:14:56,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:14:56,286 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:14:56,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:14:56,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:14:56,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:14:56,733 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:14:56,734 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:14:56,736 INFO L432 ainManager$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--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-10-15 21:14:56,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291263c43/f76de35d7d2542e3977761453d0df98e/FLAGa5912cacf [2022-10-15 21:14:58,178 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:14:58,180 INFO L160 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--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-10-15 21:14:58,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291263c43/f76de35d7d2542e3977761453d0df98e/FLAGa5912cacf [2022-10-15 21:14:58,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/291263c43/f76de35d7d2542e3977761453d0df98e [2022-10-15 21:14:58,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:14:58,333 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:14:58,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:14:58,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:14:58,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:14:58,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:58,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c22b821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:14:58, skipping insertion in model container [2022-10-15 21:14:58,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:14:58" (1/1) ... [2022-10-15 21:14:58,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:14:58,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:15:01,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[198800,198813] [2022-10-15 21:15:02,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:15:02,651 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:15:02,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[198800,198813] [2022-10-15 21:15:03,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:15:03,422 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:15:03,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03 WrapperNode [2022-10-15 21:15:03,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:15:03,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:15:03,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:15:03,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:15:03,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03" (1/1) ... [2022-10-15 21:15:03,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03" (1/1) ... [2022-10-15 21:15:04,014 INFO L138 Inliner]: procedures = 375, calls = 2229, calls flagged for inlining = 193, calls inlined = 191, statements flattened = 6647 [2022-10-15 21:15:04,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:15:04,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:15:04,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:15:04,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:15:04,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03" (1/1) ... [2022-10-15 21:15:04,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03" (1/1) ... [2022-10-15 21:15:04,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03" (1/1) ... [2022-10-15 21:15:04,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03" (1/1) ... [2022-10-15 21:15:04,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03" (1/1) ... [2022-10-15 21:15:04,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03" (1/1) ... [2022-10-15 21:15:04,484 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03" (1/1) ... [2022-10-15 21:15:04,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03" (1/1) ... [2022-10-15 21:15:04,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:15:04,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:15:04,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:15:04,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:15:04,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03" (1/1) ... [2022-10-15 21:15:04,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:15:04,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:15:04,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:15:04,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:15:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unattached_filter_destroy [2022-10-15 21:15:04,777 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unattached_filter_destroy [2022-10-15 21:15:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-10-15 21:15:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-10-15 21:15:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-10-15 21:15:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-10-15 21:15:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-10-15 21:15:04,778 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-10-15 21:15:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-10-15 21:15:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-10-15 21:15:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-10-15 21:15:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:15:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:15:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:15:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:15:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-10-15 21:15:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-10-15 21:15:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-10-15 21:15:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-10-15 21:15:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-10-15 21:15:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-10-15 21:15:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-10-15 21:15:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-10-15 21:15:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-10-15 21:15:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-10-15 21:15:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-10-15 21:15:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-10-15 21:15:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-10-15 21:15:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-10-15 21:15:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-10-15 21:15:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-10-15 21:15:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-15 21:15:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-15 21:15:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:15:04,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:15:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-10-15 21:15:04,783 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-10-15 21:15:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-10-15 21:15:04,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-10-15 21:15:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-10-15 21:15:04,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-10-15 21:15:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-10-15 21:15:04,784 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-10-15 21:15:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:15:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:15:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2022-10-15 21:15:04,785 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2022-10-15 21:15:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:15:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:15:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-10-15 21:15:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-10-15 21:15:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-15 21:15:04,786 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-15 21:15:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:15:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:15:04,787 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-10-15 21:15:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-10-15 21:15:04,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:15:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:15:04,788 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-15 21:15:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-15 21:15:04,788 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:15:04,788 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:15:04,788 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-10-15 21:15:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-10-15 21:15:04,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_19 [2022-10-15 21:15:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_19 [2022-10-15 21:15:04,789 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-10-15 21:15:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-10-15 21:15:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-10-15 21:15:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-10-15 21:15:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:15:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:15:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:15:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-10-15 21:15:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-10-15 21:15:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-10-15 21:15:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-10-15 21:15:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:15:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-10-15 21:15:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-10-15 21:15:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2022-10-15 21:15:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2022-10-15 21:15:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-10-15 21:15:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-10-15 21:15:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-10-15 21:15:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-10-15 21:15:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2022-10-15 21:15:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2022-10-15 21:15:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-15 21:15:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-15 21:15:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:15:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:15:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2022-10-15 21:15:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2022-10-15 21:15:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-10-15 21:15:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-10-15 21:15:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:15:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:15:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-15 21:15:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-15 21:15:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure sk_unattached_filter_create [2022-10-15 21:15:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_unattached_filter_create [2022-10-15 21:15:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:15:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:15:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-15 21:15:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-15 21:15:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-10-15 21:15:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-10-15 21:15:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-15 21:15:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-15 21:15:04,797 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-15 21:15:04,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-15 21:15:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-15 21:15:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-15 21:15:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-10-15 21:15:04,798 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-10-15 21:15:04,798 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-10-15 21:15:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-10-15 21:15:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-15 21:15:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-15 21:15:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-15 21:15:04,799 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-15 21:15:04,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:15:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:15:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:15:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:15:04,800 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:15:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-10-15 21:15:04,801 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-10-15 21:15:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-15 21:15:04,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-15 21:15:04,801 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-10-15 21:15:04,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-10-15 21:15:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2022-10-15 21:15:04,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2022-10-15 21:15:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:15:04,802 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-10-15 21:15:04,802 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-10-15 21:15:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-10-15 21:15:04,803 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-10-15 21:15:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:15:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-15 21:15:04,803 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-15 21:15:04,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-10-15 21:15:04,804 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-10-15 21:15:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2022-10-15 21:15:04,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2022-10-15 21:15:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-10-15 21:15:04,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-10-15 21:15:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-10-15 21:15:04,805 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-10-15 21:15:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-10-15 21:15:04,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-10-15 21:15:04,805 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2022-10-15 21:15:04,805 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2022-10-15 21:15:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2022-10-15 21:15:04,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2022-10-15 21:15:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2022-10-15 21:15:04,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2022-10-15 21:15:04,806 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-10-15 21:15:04,806 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-10-15 21:15:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_16 [2022-10-15 21:15:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_16 [2022-10-15 21:15:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-10-15 21:15:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-10-15 21:15:04,807 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-10-15 21:15:04,807 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-10-15 21:15:04,808 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-10-15 21:15:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-10-15 21:15:04,808 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-10-15 21:15:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-10-15 21:15:04,808 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:15:04,808 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:15:04,808 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-10-15 21:15:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-10-15 21:15:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2022-10-15 21:15:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2022-10-15 21:15:04,809 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-10-15 21:15:04,809 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-10-15 21:15:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:15:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-15 21:15:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-15 21:15:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-10-15 21:15:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-10-15 21:15:04,810 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-10-15 21:15:04,810 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-10-15 21:15:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2022-10-15 21:15:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2022-10-15 21:15:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:15:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:15:04,811 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-10-15 21:15:04,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-10-15 21:15:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-10-15 21:15:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-10-15 21:15:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:15:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-15 21:15:04,812 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-15 21:15:04,812 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-15 21:15:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-15 21:15:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:15:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-15 21:15:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-15 21:15:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:15:04,813 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-10-15 21:15:04,813 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-10-15 21:15:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:15:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-10-15 21:15:04,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-10-15 21:15:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:15:04,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:15:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-10-15 21:15:04,815 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-10-15 21:15:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-10-15 21:15:04,815 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-10-15 21:15:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2022-10-15 21:15:04,815 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2022-10-15 21:15:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-10-15 21:15:04,815 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-10-15 21:15:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-15 21:15:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-15 21:15:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-15 21:15:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-15 21:15:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-10-15 21:15:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-10-15 21:15:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-15 21:15:04,817 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-15 21:15:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-10-15 21:15:04,817 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-10-15 21:15:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-15 21:15:04,817 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-15 21:15:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2022-10-15 21:15:04,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2022-10-15 21:15:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-15 21:15:04,818 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-15 21:15:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2022-10-15 21:15:04,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2022-10-15 21:15:04,818 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-10-15 21:15:04,818 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-10-15 21:15:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:15:04,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:15:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-10-15 21:15:04,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-10-15 21:15:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-10-15 21:15:04,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-10-15 21:15:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_44 [2022-10-15 21:15:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_44 [2022-10-15 21:15:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-10-15 21:15:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-10-15 21:15:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:15:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-10-15 21:15:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-10-15 21:15:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-10-15 21:15:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-10-15 21:15:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:15:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:15:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:15:04,822 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:15:04,822 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-15 21:15:04,822 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-15 21:15:06,058 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:15:06,067 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:15:06,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:15:14,939 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:15:14,981 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:15:14,982 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 21:15:14,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:15:14 BoogieIcfgContainer [2022-10-15 21:15:14,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:15:14,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:15:14,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:15:14,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:15:15,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:14:58" (1/3) ... [2022-10-15 21:15:15,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749ae452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:15:15, skipping insertion in model container [2022-10-15 21:15:15,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:03" (2/3) ... [2022-10-15 21:15:15,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749ae452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:15:15, skipping insertion in model container [2022-10-15 21:15:15,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:15:14" (3/3) ... [2022-10-15 21:15:15,011 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-10-15 21:15:15,038 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:15:15,039 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 164 error locations. [2022-10-15 21:15:15,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:15:15,202 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;@6787b037, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:15:15,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 164 error locations. [2022-10-15 21:15:15,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 2511 states, 1711 states have (on average 1.4436002337814144) internal successors, (2470), 1933 states have internal predecessors, (2470), 515 states have call successors, (515), 121 states have call predecessors, (515), 120 states have return successors, (510), 497 states have call predecessors, (510), 510 states have call successors, (510) [2022-10-15 21:15:15,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 21:15:15,239 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:15,240 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:15:15,240 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ppp_disconnect_channelErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ppp_disconnect_channelErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ppp_do_recvErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 161 more)] === [2022-10-15 21:15:15,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:15,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1162950271, now seen corresponding path program 1 times [2022-10-15 21:15:15,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:15,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610705528] [2022-10-15 21:15:15,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:15,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:16,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:16,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:15:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:16,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:15:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:16,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:15:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:16,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:15:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:16,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:15:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:16,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:15:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-15 21:15:16,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:16,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610705528] [2022-10-15 21:15:16,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610705528] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:16,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:16,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:15:16,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387229897] [2022-10-15 21:15:16,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:16,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:15:16,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:16,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:15:16,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:15:16,375 INFO L87 Difference]: Start difference. First operand has 2511 states, 1711 states have (on average 1.4436002337814144) internal successors, (2470), 1933 states have internal predecessors, (2470), 515 states have call successors, (515), 121 states have call predecessors, (515), 120 states have return successors, (510), 497 states have call predecessors, (510), 510 states have call successors, (510) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-10-15 21:15:27,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:15:27,787 INFO L93 Difference]: Finished difference Result 8263 states and 12104 transitions. [2022-10-15 21:15:27,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:15:27,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 63 [2022-10-15 21:15:27,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:15:27,894 INFO L225 Difference]: With dead ends: 8263 [2022-10-15 21:15:27,894 INFO L226 Difference]: Without dead ends: 5692 [2022-10-15 21:15:27,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:15:27,938 INFO L413 NwaCegarLoop]: 4422 mSDtfsCounter, 5058 mSDsluCounter, 4410 mSDsCounter, 0 mSdLazyCounter, 2902 mSolverCounterSat, 1493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5423 SdHoareTripleChecker+Valid, 8832 SdHoareTripleChecker+Invalid, 4395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1493 IncrementalHoareTripleChecker+Valid, 2902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:15:27,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5423 Valid, 8832 Invalid, 4395 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1493 Valid, 2902 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-10-15 21:15:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5692 states. [2022-10-15 21:15:28,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5692 to 4760. [2022-10-15 21:15:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4760 states, 3365 states have (on average 1.4172362555720655) internal successors, (4769), 3630 states have internal predecessors, (4769), 993 states have call successors, (993), 233 states have call predecessors, (993), 254 states have return successors, (1161), 979 states have call predecessors, (1161), 993 states have call successors, (1161) [2022-10-15 21:15:28,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4760 states to 4760 states and 6923 transitions. [2022-10-15 21:15:28,497 INFO L78 Accepts]: Start accepts. Automaton has 4760 states and 6923 transitions. Word has length 63 [2022-10-15 21:15:28,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:15:28,498 INFO L495 AbstractCegarLoop]: Abstraction has 4760 states and 6923 transitions. [2022-10-15 21:15:28,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-10-15 21:15:28,499 INFO L276 IsEmpty]: Start isEmpty. Operand 4760 states and 6923 transitions. [2022-10-15 21:15:28,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-15 21:15:28,505 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:28,505 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:15:28,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:15:28,506 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ppp_disconnect_channelErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ppp_disconnect_channelErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ppp_do_recvErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 161 more)] === [2022-10-15 21:15:28,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:28,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1116975523, now seen corresponding path program 1 times [2022-10-15 21:15:28,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:28,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380621106] [2022-10-15 21:15:28,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:28,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:28,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:28,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:15:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:28,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:15:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:28,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:15:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:28,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:15:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:29,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:15:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:29,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:15:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:29,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-15 21:15:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:29,080 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-10-15 21:15:29,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:29,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380621106] [2022-10-15 21:15:29,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380621106] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:29,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:29,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:15:29,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572228551] [2022-10-15 21:15:29,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:29,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:15:29,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:29,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:15:29,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:15:29,086 INFO L87 Difference]: Start difference. First operand 4760 states and 6923 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)