/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-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:16:27,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:16:27,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:16:27,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:16:27,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:16:27,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:16:27,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:16:27,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:16:27,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:16:27,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:16:27,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:16:27,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:16:27,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:16:27,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:16:27,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:16:27,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:16:27,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:16:27,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:16:27,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:16:27,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:16:27,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:16:27,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:16:27,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:16:27,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:16:27,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:16:27,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:16:27,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:16:27,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:16:27,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:16:27,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:16:27,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:16:27,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:16:27,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:16:27,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:16:27,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:16:27,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:16:27,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:16:27,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:16:27,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:16:27,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:16:27,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:16:27,265 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 21:16:27,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:16:27,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:16:27,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:16:27,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:16:27,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:16:27,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:16:27,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:16:27,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:16:27,330 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:16:27,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:16:27,330 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:16:27,331 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:16:27,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:16:27,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:16:27,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:16:27,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:16:27,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:16:27,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:16:27,332 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:16:27,332 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:16:27,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:16:27,333 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:16:27,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:16:27,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:16:27,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:16:27,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:16:27,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:16:27,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:16:27,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:16:27,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:16:27,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:16:27,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:16:27,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:16:27,335 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:16:27,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:16:27,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:16:27,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:16:27,818 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:16:27,818 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:16:27,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-10-15 21:16:27,908 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20aeebb5f/098b28f133db4949bea985da299e3b45/FLAG7e9e17263 [2022-10-15 21:16:29,205 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:16:29,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-10-15 21:16:29,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20aeebb5f/098b28f133db4949bea985da299e3b45/FLAG7e9e17263 [2022-10-15 21:16:29,428 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20aeebb5f/098b28f133db4949bea985da299e3b45 [2022-10-15 21:16:29,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:16:29,441 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:16:29,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:16:29,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:16:29,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:16:29,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:16:29" (1/1) ... [2022-10-15 21:16:29,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a7239b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:29, skipping insertion in model container [2022-10-15 21:16:29,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:16:29" (1/1) ... [2022-10-15 21:16:29,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:16:29,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:16:30,449 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-10-15 21:16:30,450 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-10-15 21:16:31,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-10-15 21:16:33,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:16:33,983 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:16:34,225 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-10-15 21:16:34,227 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-10-15 21:16:34,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-10-15 21:16:34,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:16:35,030 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:16:35,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35 WrapperNode [2022-10-15 21:16:35,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:16:35,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:16:35,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:16:35,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:16:35,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35" (1/1) ... [2022-10-15 21:16:35,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35" (1/1) ... [2022-10-15 21:16:35,529 INFO L138 Inliner]: procedures = 350, calls = 2000, calls flagged for inlining = 171, calls inlined = 139, statements flattened = 4785 [2022-10-15 21:16:35,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:16:35,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:16:35,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:16:35,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:16:35,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35" (1/1) ... [2022-10-15 21:16:35,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35" (1/1) ... [2022-10-15 21:16:35,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35" (1/1) ... [2022-10-15 21:16:35,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35" (1/1) ... [2022-10-15 21:16:35,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35" (1/1) ... [2022-10-15 21:16:35,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35" (1/1) ... [2022-10-15 21:16:35,915 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35" (1/1) ... [2022-10-15 21:16:35,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35" (1/1) ... [2022-10-15 21:16:36,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:16:36,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:16:36,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:16:36,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:16:36,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35" (1/1) ... [2022-10-15 21:16:36,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:16:36,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:16:36,058 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 21:16:36,079 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 21:16:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:16:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2022-10-15 21:16:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2022-10-15 21:16:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:16:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2022-10-15 21:16:36,142 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2022-10-15 21:16:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:16:36,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:16:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-10-15 21:16:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-10-15 21:16:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-10-15 21:16:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-10-15 21:16:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2022-10-15 21:16:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2022-10-15 21:16:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-10-15 21:16:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-10-15 21:16:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2022-10-15 21:16:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2022-10-15 21:16:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-10-15 21:16:36,145 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-10-15 21:16:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-15 21:16:36,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-15 21:16:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:16:36,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:16:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-10-15 21:16:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-10-15 21:16:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-10-15 21:16:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-10-15 21:16:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2022-10-15 21:16:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2022-10-15 21:16:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-10-15 21:16:36,147 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-10-15 21:16:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2022-10-15 21:16:36,147 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2022-10-15 21:16:36,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:16:36,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:16:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-10-15 21:16:36,148 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-10-15 21:16:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-15 21:16:36,148 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-15 21:16:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2022-10-15 21:16:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2022-10-15 21:16:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-15 21:16:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-15 21:16:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:16:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:16:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2022-10-15 21:16:36,150 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2022-10-15 21:16:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:16:36,150 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:16:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2022-10-15 21:16:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2022-10-15 21:16:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-10-15 21:16:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-10-15 21:16:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2022-10-15 21:16:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2022-10-15 21:16:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2022-10-15 21:16:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2022-10-15 21:16:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:16:36,152 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:16:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2022-10-15 21:16:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2022-10-15 21:16:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-10-15 21:16:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-10-15 21:16:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2022-10-15 21:16:36,153 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2022-10-15 21:16:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:16:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2022-10-15 21:16:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2022-10-15 21:16:36,154 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2022-10-15 21:16:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2022-10-15 21:16:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2022-10-15 21:16:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2022-10-15 21:16:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-10-15 21:16:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-10-15 21:16:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2022-10-15 21:16:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2022-10-15 21:16:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:16:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-10-15 21:16:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-10-15 21:16:36,156 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-15 21:16:36,156 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-10-15 21:16:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-15 21:16:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-15 21:16:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-10-15 21:16:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-10-15 21:16:36,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-10-15 21:16:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2022-10-15 21:16:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2022-10-15 21:16:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:16:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:16:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:16:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-10-15 21:16:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-10-15 21:16:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:16:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2022-10-15 21:16:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2022-10-15 21:16:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-10-15 21:16:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-10-15 21:16:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-10-15 21:16:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-10-15 21:16:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2022-10-15 21:16:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2022-10-15 21:16:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2022-10-15 21:16:36,160 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2022-10-15 21:16:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2022-10-15 21:16:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2022-10-15 21:16:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-15 21:16:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-15 21:16:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-15 21:16:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-15 21:16:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-15 21:16:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-15 21:16:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-10-15 21:16:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-10-15 21:16:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2022-10-15 21:16:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2022-10-15 21:16:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:16:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:16:36,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:16:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-10-15 21:16:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-10-15 21:16:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2022-10-15 21:16:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2022-10-15 21:16:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-10-15 21:16:36,164 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-10-15 21:16:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-15 21:16:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-15 21:16:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-15 21:16:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-15 21:16:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:16:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-10-15 21:16:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-10-15 21:16:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-10-15 21:16:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-10-15 21:16:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2022-10-15 21:16:36,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2022-10-15 21:16:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2022-10-15 21:16:36,167 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2022-10-15 21:16:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-10-15 21:16:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-10-15 21:16:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:16:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-15 21:16:36,168 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-15 21:16:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-15 21:16:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-15 21:16:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-10-15 21:16:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-10-15 21:16:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:16:36,169 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:16:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2022-10-15 21:16:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2022-10-15 21:16:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2022-10-15 21:16:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2022-10-15 21:16:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2022-10-15 21:16:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2022-10-15 21:16:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-15 21:16:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-15 21:16:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-15 21:16:36,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-15 21:16:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2022-10-15 21:16:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2022-10-15 21:16:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:16:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:16:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-10-15 21:16:36,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-10-15 21:16:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-10-15 21:16:36,173 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-10-15 21:16:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:16:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-10-15 21:16:36,173 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-10-15 21:16:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-15 21:16:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-15 21:16:36,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:16:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:16:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2022-10-15 21:16:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2022-10-15 21:16:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-10-15 21:16:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-10-15 21:16:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2022-10-15 21:16:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2022-10-15 21:16:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:16:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-15 21:16:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-15 21:16:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:16:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-15 21:16:36,177 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-15 21:16:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-10-15 21:16:36,178 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-10-15 21:16:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:16:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-10-15 21:16:36,178 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-10-15 21:16:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-10-15 21:16:36,178 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-10-15 21:16:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-15 21:16:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-15 21:16:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-10-15 21:16:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-10-15 21:16:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-10-15 21:16:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-10-15 21:16:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-10-15 21:16:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-10-15 21:16:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-15 21:16:36,180 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-15 21:16:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-10-15 21:16:36,181 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-10-15 21:16:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2022-10-15 21:16:36,181 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2022-10-15 21:16:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-15 21:16:36,181 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-15 21:16:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2022-10-15 21:16:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2022-10-15 21:16:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-10-15 21:16:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-10-15 21:16:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-15 21:16:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-15 21:16:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:16:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-10-15 21:16:36,183 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-10-15 21:16:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-10-15 21:16:36,183 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-10-15 21:16:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2022-10-15 21:16:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2022-10-15 21:16:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2022-10-15 21:16:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2022-10-15 21:16:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:16:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:16:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2022-10-15 21:16:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2022-10-15 21:16:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-15 21:16:36,185 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-15 21:16:36,185 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:16:36,186 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:16:37,424 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:16:37,429 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:16:38,708 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:16:49,316 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:16:49,341 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:16:49,341 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:16:49,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:16:49 BoogieIcfgContainer [2022-10-15 21:16:49,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:16:49,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:16:49,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:16:49,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:16:49,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:16:29" (1/3) ... [2022-10-15 21:16:49,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efaa3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:16:49, skipping insertion in model container [2022-10-15 21:16:49,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:35" (2/3) ... [2022-10-15 21:16:49,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efaa3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:16:49, skipping insertion in model container [2022-10-15 21:16:49,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:16:49" (3/3) ... [2022-10-15 21:16:49,363 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-10-15 21:16:49,389 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:16:49,389 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2022-10-15 21:16:49,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:16:49,512 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;@5f9fd21e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:16:49,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2022-10-15 21:16:49,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 1747 states, 1206 states have (on average 1.357379767827529) internal successors, (1637), 1301 states have internal predecessors, (1637), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) [2022-10-15 21:16:49,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-15 21:16:49,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:16:49,578 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:16:49,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-15 21:16:49,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:16:49,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1657044445, now seen corresponding path program 1 times [2022-10-15 21:16:49,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:16:49,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876047187] [2022-10-15 21:16:49,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:16:49,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:16:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:50,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:16:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:50,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:16:50,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:50,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:16:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:50,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:16:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:50,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:16:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:50,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:16:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:50,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:16:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:50,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:16:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:50,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:16:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:50,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-15 21:16:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:50,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-15 21:16:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:51,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:16:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:16:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-10-15 21:16:51,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:16:51,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876047187] [2022-10-15 21:16:51,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876047187] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:16:51,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:16:51,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:16:51,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919204969] [2022-10-15 21:16:51,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:16:51,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:16:51,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:16:51,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:16:51,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:16:51,123 INFO L87 Difference]: Start difference. First operand has 1747 states, 1206 states have (on average 1.357379767827529) internal successors, (1637), 1301 states have internal predecessors, (1637), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-15 21:17:00,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:17:02,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:17:07,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:07,500 INFO L93 Difference]: Finished difference Result 5444 states and 7545 transitions. [2022-10-15 21:17:07,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:17:07,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 90 [2022-10-15 21:17:07,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:07,572 INFO L225 Difference]: With dead ends: 5444 [2022-10-15 21:17:07,572 INFO L226 Difference]: Without dead ends: 3643 [2022-10-15 21:17:07,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:17:07,598 INFO L413 NwaCegarLoop]: 2605 mSDtfsCounter, 3745 mSDsluCounter, 3615 mSDsCounter, 0 mSdLazyCounter, 2896 mSolverCounterSat, 1917 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4045 SdHoareTripleChecker+Valid, 6220 SdHoareTripleChecker+Invalid, 4815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1917 IncrementalHoareTripleChecker+Valid, 2896 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:07,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4045 Valid, 6220 Invalid, 4815 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1917 Valid, 2896 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2022-10-15 21:17:07,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2022-10-15 21:17:07,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 3287. [2022-10-15 21:17:07,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3287 states, 2308 states have (on average 1.3167244367417679) internal successors, (3039), 2417 states have internal predecessors, (3039), 705 states have call successors, (705), 211 states have call predecessors, (705), 212 states have return successors, (709), 700 states have call predecessors, (709), 705 states have call successors, (709) [2022-10-15 21:17:07,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3287 states to 3287 states and 4453 transitions. [2022-10-15 21:17:08,002 INFO L78 Accepts]: Start accepts. Automaton has 3287 states and 4453 transitions. Word has length 90 [2022-10-15 21:17:08,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:08,003 INFO L495 AbstractCegarLoop]: Abstraction has 3287 states and 4453 transitions. [2022-10-15 21:17:08,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-15 21:17:08,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3287 states and 4453 transitions. [2022-10-15 21:17:08,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-15 21:17:08,012 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:08,012 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:17:08,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:17:08,013 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-15 21:17:08,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:08,015 INFO L85 PathProgramCache]: Analyzing trace with hash 472012067, now seen corresponding path program 1 times [2022-10-15 21:17:08,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:08,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327761696] [2022-10-15 21:17:08,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:08,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:17:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:17:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:17:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:17:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:17:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:17:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:17:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-15 21:17:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-15 21:17:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 21:17:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-15 21:17:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-10-15 21:17:08,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:08,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327761696] [2022-10-15 21:17:08,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327761696] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:08,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:08,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:17:08,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630055610] [2022-10-15 21:17:08,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:08,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:17:08,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:08,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:17:08,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:17:08,627 INFO L87 Difference]: Start difference. First operand 3287 states and 4453 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)