/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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:23:56,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:23:56,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:23:56,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:23:56,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:23:56,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:23:56,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:23:56,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:23:56,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:23:56,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:23:56,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:23:56,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:23:56,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:23:56,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:23:56,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:23:56,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:23:56,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:23:56,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:23:56,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:23:56,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:23:56,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:23:56,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:23:56,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:23:56,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:23:56,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:23:56,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:23:56,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:23:56,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:23:56,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:23:56,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:23:56,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:23:56,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:23:56,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:23:56,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:23:56,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:23:56,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:23:56,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:23:56,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:23:56,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:23:56,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:23:56,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:23:56,519 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 [2022-10-16 12:23:56,554 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:23:56,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:23:56,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:23:56,554 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:23:56,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:23:56,555 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:23:56,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:23:56,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:23:56,556 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:23:56,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:23:56,557 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:23:56,557 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:23:56,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:23:56,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:23:56,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:23:56,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:23:56,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:23:56,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:23:56,558 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:23:56,559 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:23:56,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:23:56,559 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:23:56,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:23:56,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:23:56,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:23:56,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:23:56,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:23:56,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:23:56,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:23:56,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:23:56,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:23:56,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:23:56,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:23:56,561 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:23:56,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:23:56,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:23:56,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:23:56,949 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:23:56,949 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:23:56,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2022-10-16 12:23:57,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41edfc2b/3ee3182c17fb4d9f9aab158ecff1a77c/FLAG7588240b2 [2022-10-16 12:23:58,240 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:23:58,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2022-10-16 12:23:58,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41edfc2b/3ee3182c17fb4d9f9aab158ecff1a77c/FLAG7588240b2 [2022-10-16 12:23:58,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41edfc2b/3ee3182c17fb4d9f9aab158ecff1a77c [2022-10-16 12:23:58,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:23:58,562 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:23:58,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:23:58,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:23:58,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:23:58,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:23:58" (1/1) ... [2022-10-16 12:23:58,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc9b4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:23:58, skipping insertion in model container [2022-10-16 12:23:58,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:23:58" (1/1) ... [2022-10-16 12:23:58,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:23:58,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:24:02,619 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2022-10-16 12:24:02,620 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2022-10-16 12:24:02,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:24:02,721 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:24:03,186 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2022-10-16 12:24:03,187 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2022-10-16 12:24:03,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:24:03,517 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:24:03,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03 WrapperNode [2022-10-16 12:24:03,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:24:03,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:24:03,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:24:03,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:24:03,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03" (1/1) ... [2022-10-16 12:24:03,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03" (1/1) ... [2022-10-16 12:24:03,889 INFO L138 Inliner]: procedures = 547, calls = 2335, calls flagged for inlining = 258, calls inlined = 200, statements flattened = 5088 [2022-10-16 12:24:03,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:24:03,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:24:03,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:24:03,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:24:03,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03" (1/1) ... [2022-10-16 12:24:03,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03" (1/1) ... [2022-10-16 12:24:03,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03" (1/1) ... [2022-10-16 12:24:03,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03" (1/1) ... [2022-10-16 12:24:04,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03" (1/1) ... [2022-10-16 12:24:04,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03" (1/1) ... [2022-10-16 12:24:04,252 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03" (1/1) ... [2022-10-16 12:24:04,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03" (1/1) ... [2022-10-16 12:24:04,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:24:04,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:24:04,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:24:04,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:24:04,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03" (1/1) ... [2022-10-16 12:24:04,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:24:04,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:24:04,368 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) [2022-10-16 12:24:04,381 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 [2022-10-16 12:24:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2022-10-16 12:24:04,429 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2022-10-16 12:24:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-16 12:24:04,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-16 12:24:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-10-16 12:24:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-10-16 12:24:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-10-16 12:24:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-10-16 12:24:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:24:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:24:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netfront_info [2022-10-16 12:24:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netfront_info [2022-10-16 12:24:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2022-10-16 12:24:04,431 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2022-10-16 12:24:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-10-16 12:24:04,431 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-10-16 12:24:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_interrupt [2022-10-16 12:24:04,431 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_interrupt [2022-10-16 12:24:04,431 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-16 12:24:04,431 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-16 12:24:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2022-10-16 12:24:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2022-10-16 12:24:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2022-10-16 12:24:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2022-10-16 12:24:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2022-10-16 12:24:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2022-10-16 12:24:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-10-16 12:24:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-10-16 12:24:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2022-10-16 12:24:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2022-10-16 12:24:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-16 12:24:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-16 12:24:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2022-10-16 12:24:04,433 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2022-10-16 12:24:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2022-10-16 12:24:04,434 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2022-10-16 12:24:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-16 12:24:04,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-16 12:24:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-10-16 12:24:04,434 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-10-16 12:24:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-16 12:24:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-16 12:24:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2022-10-16 12:24:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2022-10-16 12:24:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:24:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-10-16 12:24:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-10-16 12:24:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-10-16 12:24:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-10-16 12:24:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2022-10-16 12:24:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2022-10-16 12:24:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-16 12:24:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-16 12:24:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 12:24:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2022-10-16 12:24:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2022-10-16 12:24:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-10-16 12:24:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-10-16 12:24:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-10-16 12:24:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-10-16 12:24:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-16 12:24:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-16 12:24:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 12:24:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-10-16 12:24:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-10-16 12:24:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2022-10-16 12:24:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2022-10-16 12:24:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:24:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-16 12:24:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-16 12:24:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 12:24:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 12:24:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-10-16 12:24:04,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-10-16 12:24:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_124 [2022-10-16 12:24:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_124 [2022-10-16 12:24:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-10-16 12:24:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-10-16 12:24:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2022-10-16 12:24:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2022-10-16 12:24:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-16 12:24:04,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-16 12:24:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2022-10-16 12:24:04,441 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2022-10-16 12:24:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2022-10-16 12:24:04,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2022-10-16 12:24:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_uninit [2022-10-16 12:24:04,442 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_uninit [2022-10-16 12:24:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-10-16 12:24:04,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-10-16 12:24:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:24:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:24:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-16 12:24:04,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-16 12:24:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:24:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-10-16 12:24:04,443 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-10-16 12:24:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-10-16 12:24:04,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-10-16 12:24:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-10-16 12:24:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-10-16 12:24:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-10-16 12:24:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-10-16 12:24:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2022-10-16 12:24:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2022-10-16 12:24:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-10-16 12:24:04,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-10-16 12:24:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-16 12:24:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-16 12:24:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-10-16 12:24:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-10-16 12:24:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-10-16 12:24:04,445 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-10-16 12:24:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-16 12:24:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-16 12:24:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2022-10-16 12:24:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2022-10-16 12:24:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:24:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:24:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 12:24:04,446 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 12:24:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 12:24:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 12:24:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 12:24:04,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 12:24:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2022-10-16 12:24:04,447 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2022-10-16 12:24:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-10-16 12:24:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-10-16 12:24:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2022-10-16 12:24:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2022-10-16 12:24:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-10-16 12:24:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-10-16 12:24:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-10-16 12:24:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-10-16 12:24:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-10-16 12:24:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-10-16 12:24:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-10-16 12:24:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-10-16 12:24:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 12:24:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 12:24:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-16 12:24:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-16 12:24:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-10-16 12:24:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-10-16 12:24:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2022-10-16 12:24:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2022-10-16 12:24:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-10-16 12:24:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-10-16 12:24:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:24:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2022-10-16 12:24:04,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2022-10-16 12:24:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2022-10-16 12:24:04,451 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2022-10-16 12:24:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netfront_info [2022-10-16 12:24:04,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netfront_info [2022-10-16 12:24:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2022-10-16 12:24:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2022-10-16 12:24:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:24:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-10-16 12:24:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-10-16 12:24:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_min [2022-10-16 12:24:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_min [2022-10-16 12:24:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-10-16 12:24:04,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-10-16 12:24:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:24:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-10-16 12:24:04,453 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-10-16 12:24:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2022-10-16 12:24:04,453 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2022-10-16 12:24:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2022-10-16 12:24:04,453 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2022-10-16 12:24:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-16 12:24:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-16 12:24:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-16 12:24:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-16 12:24:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-10-16 12:24:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-10-16 12:24:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2022-10-16 12:24:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2022-10-16 12:24:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-10-16 12:24:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-10-16 12:24:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_104 [2022-10-16 12:24:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_104 [2022-10-16 12:24:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-10-16 12:24:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-10-16 12:24:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-10-16 12:24:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-10-16 12:24:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-10-16 12:24:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-10-16 12:24:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-16 12:24:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-16 12:24:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-16 12:24:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-16 12:24:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-10-16 12:24:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-10-16 12:24:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2022-10-16 12:24:04,457 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2022-10-16 12:24:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-16 12:24:04,457 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-16 12:24:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 12:24:04,457 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 12:24:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-10-16 12:24:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-10-16 12:24:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:24:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-10-16 12:24:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-10-16 12:24:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 12:24:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 12:24:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2022-10-16 12:24:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2022-10-16 12:24:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-16 12:24:04,459 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-16 12:24:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rx_interrupt [2022-10-16 12:24:04,459 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rx_interrupt [2022-10-16 12:24:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2022-10-16 12:24:04,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2022-10-16 12:24:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-16 12:24:04,459 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-16 12:24:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-10-16 12:24:04,460 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-10-16 12:24:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_105 [2022-10-16 12:24:04,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_105 [2022-10-16 12:24:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_max [2022-10-16 12:24:04,460 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_max [2022-10-16 12:24:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-16 12:24:04,460 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-16 12:24:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-10-16 12:24:04,461 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-10-16 12:24:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-16 12:24:04,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-16 12:24:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_interrupt [2022-10-16 12:24:04,461 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_interrupt [2022-10-16 12:24:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_123 [2022-10-16 12:24:04,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_123 [2022-10-16 12:24:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:24:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-10-16 12:24:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-10-16 12:24:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-10-16 12:24:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-10-16 12:24:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-10-16 12:24:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-10-16 12:24:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2022-10-16 12:24:04,463 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2022-10-16 12:24:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2022-10-16 12:24:04,463 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2022-10-16 12:24:05,259 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:24:05,263 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:24:05,467 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 12:24:14,303 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:24:14,323 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:24:14,324 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 12:24:14,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:24:14 BoogieIcfgContainer [2022-10-16 12:24:14,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:24:14,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:24:14,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:24:14,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:24:14,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:23:58" (1/3) ... [2022-10-16 12:24:14,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bc7d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:24:14, skipping insertion in model container [2022-10-16 12:24:14,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:24:03" (2/3) ... [2022-10-16 12:24:14,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56bc7d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:24:14, skipping insertion in model container [2022-10-16 12:24:14,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:24:14" (3/3) ... [2022-10-16 12:24:14,339 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2022-10-16 12:24:14,360 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:24:14,360 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2022-10-16 12:24:14,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:24:14,463 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;@9e8bdcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:24:14,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-10-16 12:24:14,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 1823 states, 1225 states have (on average 1.3093877551020408) internal successors, (1604), 1319 states have internal predecessors, (1604), 427 states have call successors, (427), 115 states have call predecessors, (427), 114 states have return successors, (423), 420 states have call predecessors, (423), 423 states have call successors, (423) [2022-10-16 12:24:14,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 12:24:14,497 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:24:14,499 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 12:24:14,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ERR_PTRErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:24:14,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:24:14,505 INFO L85 PathProgramCache]: Analyzing trace with hash -2023116795, now seen corresponding path program 1 times [2022-10-16 12:24:14,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:24:14,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915674693] [2022-10-16 12:24:14,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:24:14,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:24:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:24:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:24:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:24:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:24:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:24:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:24:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:24:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:24:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-10-16 12:24:15,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:24:15,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915674693] [2022-10-16 12:24:15,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915674693] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:24:15,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:24:15,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:24:15,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759428568] [2022-10-16 12:24:15,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:24:15,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:24:15,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:24:15,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:24:15,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:24:15,915 INFO L87 Difference]: Start difference. First operand has 1823 states, 1225 states have (on average 1.3093877551020408) internal successors, (1604), 1319 states have internal predecessors, (1604), 427 states have call successors, (427), 115 states have call predecessors, (427), 114 states have return successors, (423), 420 states have call predecessors, (423), 423 states have call successors, (423) Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 12:24:19,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:24:19,675 INFO L93 Difference]: Finished difference Result 3821 states and 5211 transitions. [2022-10-16 12:24:19,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:24:19,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2022-10-16 12:24:19,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:24:19,709 INFO L225 Difference]: With dead ends: 3821 [2022-10-16 12:24:19,710 INFO L226 Difference]: Without dead ends: 1956 [2022-10-16 12:24:19,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:24:19,731 INFO L413 NwaCegarLoop]: 2421 mSDtfsCounter, 664 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 4992 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:24:19,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 4992 Invalid, 1966 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [456 Valid, 1510 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-10-16 12:24:19,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2022-10-16 12:24:19,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1782. [2022-10-16 12:24:19,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1782 states, 1209 states have (on average 1.2762613730355665) internal successors, (1543), 1299 states have internal predecessors, (1543), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-10-16 12:24:19,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 2351 transitions. [2022-10-16 12:24:19,959 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 2351 transitions. Word has length 114 [2022-10-16 12:24:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:24:19,959 INFO L495 AbstractCegarLoop]: Abstraction has 1782 states and 2351 transitions. [2022-10-16 12:24:19,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 12:24:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 2351 transitions. [2022-10-16 12:24:19,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 12:24:19,964 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:24:19,965 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 12:24:19,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:24:19,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ERR_PTRErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:24:19,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:24:19,966 INFO L85 PathProgramCache]: Analyzing trace with hash -984532221, now seen corresponding path program 1 times [2022-10-16 12:24:19,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:24:19,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669356073] [2022-10-16 12:24:19,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:24:19,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:24:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:24:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:24:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:24:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:24:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:24:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:24:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:24:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:24:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:20,945 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-10-16 12:24:20,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:24:20,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669356073] [2022-10-16 12:24:20,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669356073] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:24:20,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:24:20,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:24:20,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464972962] [2022-10-16 12:24:20,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:24:20,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:24:20,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:24:20,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:24:20,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:24:20,952 INFO L87 Difference]: Start difference. First operand 1782 states and 2351 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 12:24:24,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:24:24,998 INFO L93 Difference]: Finished difference Result 1881 states and 2495 transitions. [2022-10-16 12:24:24,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:24:24,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 114 [2022-10-16 12:24:24,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:24:25,016 INFO L225 Difference]: With dead ends: 1881 [2022-10-16 12:24:25,016 INFO L226 Difference]: Without dead ends: 1880 [2022-10-16 12:24:25,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:24:25,019 INFO L413 NwaCegarLoop]: 2230 mSDtfsCounter, 604 mSDsluCounter, 3800 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 6030 SdHoareTripleChecker+Invalid, 2850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:24:25,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 6030 Invalid, 2850 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [428 Valid, 2422 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-10-16 12:24:25,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2022-10-16 12:24:25,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1788. [2022-10-16 12:24:25,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1788 states, 1214 states have (on average 1.2759472817133444) internal successors, (1549), 1304 states have internal predecessors, (1549), 404 states have call successors, (404), 114 states have call predecessors, (404), 114 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-10-16 12:24:25,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2357 transitions. [2022-10-16 12:24:25,138 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2357 transitions. Word has length 114 [2022-10-16 12:24:25,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:24:25,141 INFO L495 AbstractCegarLoop]: Abstraction has 1788 states and 2357 transitions. [2022-10-16 12:24:25,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 12:24:25,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2357 transitions. [2022-10-16 12:24:25,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-10-16 12:24:25,148 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:24:25,148 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 12:24:25,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:24:25,149 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ERR_PTRErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:24:25,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:24:25,149 INFO L85 PathProgramCache]: Analyzing trace with hash -455727249, now seen corresponding path program 1 times [2022-10-16 12:24:25,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:24:25,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973102186] [2022-10-16 12:24:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:24:25,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:24:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:24:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:24:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:24:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:24:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:24:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:24:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:24:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:25,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:24:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:26,019 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-10-16 12:24:26,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:24:26,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973102186] [2022-10-16 12:24:26,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973102186] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:24:26,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:24:26,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:24:26,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703322894] [2022-10-16 12:24:26,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:24:26,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:24:26,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:24:26,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:24:26,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:24:26,026 INFO L87 Difference]: Start difference. First operand 1788 states and 2357 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 12:24:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:24:29,673 INFO L93 Difference]: Finished difference Result 1880 states and 2494 transitions. [2022-10-16 12:24:29,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:24:29,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2022-10-16 12:24:29,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:24:29,688 INFO L225 Difference]: With dead ends: 1880 [2022-10-16 12:24:29,688 INFO L226 Difference]: Without dead ends: 1879 [2022-10-16 12:24:29,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:24:29,691 INFO L413 NwaCegarLoop]: 2231 mSDtfsCounter, 600 mSDsluCounter, 3800 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 6031 SdHoareTripleChecker+Invalid, 2849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:24:29,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 6031 Invalid, 2849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-10-16 12:24:29,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2022-10-16 12:24:29,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1788. [2022-10-16 12:24:29,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1788 states, 1214 states have (on average 1.2751235584843492) internal successors, (1548), 1304 states have internal predecessors, (1548), 404 states have call successors, (404), 114 states have call predecessors, (404), 114 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-10-16 12:24:29,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2356 transitions. [2022-10-16 12:24:29,775 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2356 transitions. Word has length 115 [2022-10-16 12:24:29,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:24:29,776 INFO L495 AbstractCegarLoop]: Abstraction has 1788 states and 2356 transitions. [2022-10-16 12:24:29,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 12:24:29,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2356 transitions. [2022-10-16 12:24:29,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-10-16 12:24:29,779 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:24:29,780 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:24:29,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:24:29,780 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting cpumask_nextErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:24:29,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:24:29,781 INFO L85 PathProgramCache]: Analyzing trace with hash 813274797, now seen corresponding path program 1 times [2022-10-16 12:24:29,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:24:29,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045932043] [2022-10-16 12:24:29,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:24:29,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:24:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:24:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:24:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:24:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:24:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:24:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:24:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:24:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:24:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:24:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:24:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 12:24:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:24:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 12:24:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 12:24:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 12:24:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:30,471 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-16 12:24:30,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:24:30,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045932043] [2022-10-16 12:24:30,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045932043] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:24:30,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:24:30,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:24:30,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603043732] [2022-10-16 12:24:30,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:24:30,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:24:30,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:24:30,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:24:30,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:24:30,474 INFO L87 Difference]: Start difference. First operand 1788 states and 2356 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-10-16 12:24:33,070 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 [] [2022-10-16 12:24:36,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:24:38,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:24:43,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:24:43,769 INFO L93 Difference]: Finished difference Result 4577 states and 6185 transitions. [2022-10-16 12:24:43,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:24:43,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 170 [2022-10-16 12:24:43,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:24:43,789 INFO L225 Difference]: With dead ends: 4577 [2022-10-16 12:24:43,789 INFO L226 Difference]: Without dead ends: 2813 [2022-10-16 12:24:43,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:24:43,798 INFO L413 NwaCegarLoop]: 3379 mSDtfsCounter, 1485 mSDsluCounter, 4884 mSDsCounter, 0 mSdLazyCounter, 2754 mSolverCounterSat, 475 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 8263 SdHoareTripleChecker+Invalid, 3232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 2754 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-10-16 12:24:43,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 8263 Invalid, 3232 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [475 Valid, 2754 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2022-10-16 12:24:43,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2022-10-16 12:24:43,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 1788. [2022-10-16 12:24:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1788 states, 1214 states have (on average 1.2742998352553543) internal successors, (1547), 1304 states have internal predecessors, (1547), 404 states have call successors, (404), 114 states have call predecessors, (404), 114 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-10-16 12:24:43,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2355 transitions. [2022-10-16 12:24:43,902 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2355 transitions. Word has length 170 [2022-10-16 12:24:43,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:24:43,902 INFO L495 AbstractCegarLoop]: Abstraction has 1788 states and 2355 transitions. [2022-10-16 12:24:43,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-10-16 12:24:43,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2355 transitions. [2022-10-16 12:24:43,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-10-16 12:24:43,907 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:24:43,907 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:24:43,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:24:43,907 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting cpumask_nextErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:24:43,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:24:43,908 INFO L85 PathProgramCache]: Analyzing trace with hash -4373653, now seen corresponding path program 1 times [2022-10-16 12:24:43,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:24:43,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369215166] [2022-10-16 12:24:43,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:24:43,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:24:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:24:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:24:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:24:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:24:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:24:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:24:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:24:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:24:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:24:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:24:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 12:24:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:24:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 12:24:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 12:24:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 12:24:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:44,499 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-16 12:24:44,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:24:44,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369215166] [2022-10-16 12:24:44,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369215166] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:24:44,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:24:44,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:24:44,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183541255] [2022-10-16 12:24:44,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:24:44,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:24:44,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:24:44,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:24:44,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:24:44,506 INFO L87 Difference]: Start difference. First operand 1788 states and 2355 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-10-16 12:24:47,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:24:50,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:24:52,807 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 [] [2022-10-16 12:24:55,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:24:55,615 INFO L93 Difference]: Finished difference Result 1989 states and 2653 transitions. [2022-10-16 12:24:55,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:24:55,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 170 [2022-10-16 12:24:55,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:24:55,629 INFO L225 Difference]: With dead ends: 1989 [2022-10-16 12:24:55,630 INFO L226 Difference]: Without dead ends: 1988 [2022-10-16 12:24:55,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:24:55,634 INFO L413 NwaCegarLoop]: 2167 mSDtfsCounter, 669 mSDsluCounter, 3258 mSDsCounter, 0 mSdLazyCounter, 2229 mSolverCounterSat, 477 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 5425 SdHoareTripleChecker+Invalid, 2709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 2229 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-10-16 12:24:55,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 5425 Invalid, 2709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 2229 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-10-16 12:24:55,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2022-10-16 12:24:55,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1789. [2022-10-16 12:24:55,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1789 states, 1215 states have (on average 1.2740740740740741) internal successors, (1548), 1305 states have internal predecessors, (1548), 404 states have call successors, (404), 114 states have call predecessors, (404), 114 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-10-16 12:24:55,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 2356 transitions. [2022-10-16 12:24:55,721 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 2356 transitions. Word has length 170 [2022-10-16 12:24:55,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:24:55,721 INFO L495 AbstractCegarLoop]: Abstraction has 1789 states and 2356 transitions. [2022-10-16 12:24:55,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-10-16 12:24:55,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 2356 transitions. [2022-10-16 12:24:55,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-10-16 12:24:55,726 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:24:55,726 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:24:55,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:24:55,727 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting cpumask_nextErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:24:55,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:24:55,728 INFO L85 PathProgramCache]: Analyzing trace with hash -135582640, now seen corresponding path program 1 times [2022-10-16 12:24:55,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:24:55,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515361728] [2022-10-16 12:24:55,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:24:55,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:24:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:24:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:24:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:24:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:24:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:24:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:24:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:24:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:24:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:24:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:24:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:24:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 12:24:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:24:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 12:24:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 12:24:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:24:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 12:24:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:24:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:24:56,380 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-16 12:24:56,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:24:56,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515361728] [2022-10-16 12:24:56,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515361728] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:24:56,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:24:56,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:24:56,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612449576] [2022-10-16 12:24:56,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:24:56,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:24:56,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:24:56,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:24:56,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:24:56,383 INFO L87 Difference]: Start difference. First operand 1789 states and 2356 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-10-16 12:24:58,896 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 [] [2022-10-16 12:25:00,971 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 [] [2022-10-16 12:25:04,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:25:04,319 INFO L93 Difference]: Finished difference Result 1986 states and 2647 transitions. [2022-10-16 12:25:04,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:25:04,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 171 [2022-10-16 12:25:04,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:25:04,332 INFO L225 Difference]: With dead ends: 1986 [2022-10-16 12:25:04,332 INFO L226 Difference]: Without dead ends: 1985 [2022-10-16 12:25:04,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:25:04,334 INFO L413 NwaCegarLoop]: 2175 mSDtfsCounter, 1132 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 1003 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 4627 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-10-16 12:25:04,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 4627 Invalid, 2768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 1763 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-10-16 12:25:04,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2022-10-16 12:25:04,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1790. [2022-10-16 12:25:04,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1790 states, 1216 states have (on average 1.2738486842105263) internal successors, (1549), 1306 states have internal predecessors, (1549), 404 states have call successors, (404), 114 states have call predecessors, (404), 114 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-10-16 12:25:04,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2357 transitions. [2022-10-16 12:25:04,414 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2357 transitions. Word has length 171 [2022-10-16 12:25:04,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:25:04,415 INFO L495 AbstractCegarLoop]: Abstraction has 1790 states and 2357 transitions. [2022-10-16 12:25:04,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-10-16 12:25:04,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2357 transitions. [2022-10-16 12:25:04,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-10-16 12:25:04,419 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:25:04,419 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:25:04,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 12:25:04,420 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ERR_PTRErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:25:04,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:25:04,420 INFO L85 PathProgramCache]: Analyzing trace with hash 2048929949, now seen corresponding path program 1 times [2022-10-16 12:25:04,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:25:04,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598321568] [2022-10-16 12:25:04,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:25:04,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:25:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:25:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:25:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:25:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:25:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:25:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:25:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:25:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:25:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:25:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:25:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 12:25:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:25:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 12:25:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 12:25:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 12:25:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 12:25:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 12:25:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:05,336 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-16 12:25:05,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:25:05,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598321568] [2022-10-16 12:25:05,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598321568] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:25:05,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:25:05,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 12:25:05,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211261724] [2022-10-16 12:25:05,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:25:05,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:25:05,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:25:05,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:25:05,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:25:05,339 INFO L87 Difference]: Start difference. First operand 1790 states and 2357 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-16 12:25:08,053 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 [] [2022-10-16 12:25:10,133 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 [] [2022-10-16 12:25:15,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:25:15,550 INFO L93 Difference]: Finished difference Result 2812 states and 3861 transitions. [2022-10-16 12:25:15,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:25:15,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 183 [2022-10-16 12:25:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:25:15,570 INFO L225 Difference]: With dead ends: 2812 [2022-10-16 12:25:15,571 INFO L226 Difference]: Without dead ends: 2811 [2022-10-16 12:25:15,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:25:15,573 INFO L413 NwaCegarLoop]: 3375 mSDtfsCounter, 2131 mSDsluCounter, 8213 mSDsCounter, 0 mSdLazyCounter, 4358 mSolverCounterSat, 1096 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2505 SdHoareTripleChecker+Valid, 11588 SdHoareTripleChecker+Invalid, 5456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1096 IncrementalHoareTripleChecker+Valid, 4358 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:25:15,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2505 Valid, 11588 Invalid, 5456 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1096 Valid, 4358 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2022-10-16 12:25:15,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2022-10-16 12:25:15,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 1789. [2022-10-16 12:25:15,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1789 states, 1216 states have (on average 1.2730263157894737) internal successors, (1548), 1305 states have internal predecessors, (1548), 404 states have call successors, (404), 114 states have call predecessors, (404), 114 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2022-10-16 12:25:15,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 2356 transitions. [2022-10-16 12:25:15,668 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 2356 transitions. Word has length 183 [2022-10-16 12:25:15,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:25:15,668 INFO L495 AbstractCegarLoop]: Abstraction has 1789 states and 2356 transitions. [2022-10-16 12:25:15,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-16 12:25:15,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 2356 transitions. [2022-10-16 12:25:15,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-10-16 12:25:15,673 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:25:15,673 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:25:15,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:25:15,673 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:25:15,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:25:15,674 INFO L85 PathProgramCache]: Analyzing trace with hash -365237435, now seen corresponding path program 1 times [2022-10-16 12:25:15,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:25:15,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899450306] [2022-10-16 12:25:15,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:25:15,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:25:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:25:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:25:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:25:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:25:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:16,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:25:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:25:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:25:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:25:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:25:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:25:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 12:25:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:25:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 12:25:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 12:25:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 12:25:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 12:25:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:16,411 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-16 12:25:16,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:25:16,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899450306] [2022-10-16 12:25:16,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899450306] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:25:16,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:25:16,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:25:16,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075411563] [2022-10-16 12:25:16,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:25:16,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:25:16,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:25:16,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:25:16,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:25:16,414 INFO L87 Difference]: Start difference. First operand 1789 states and 2356 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-10-16 12:25:18,962 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 [] [2022-10-16 12:25:22,172 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 [] [2022-10-16 12:25:24,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:25:24,397 INFO L93 Difference]: Finished difference Result 3758 states and 4982 transitions. [2022-10-16 12:25:24,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:25:24,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 180 [2022-10-16 12:25:24,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:25:24,410 INFO L225 Difference]: With dead ends: 3758 [2022-10-16 12:25:24,410 INFO L226 Difference]: Without dead ends: 1993 [2022-10-16 12:25:24,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 12:25:24,418 INFO L413 NwaCegarLoop]: 2163 mSDtfsCounter, 1132 mSDsluCounter, 2419 mSDsCounter, 0 mSdLazyCounter, 1803 mSolverCounterSat, 1013 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 4582 SdHoareTripleChecker+Invalid, 2818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1013 IncrementalHoareTripleChecker+Valid, 1803 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-10-16 12:25:24,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 4582 Invalid, 2818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1013 Valid, 1803 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-10-16 12:25:24,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2022-10-16 12:25:24,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1798. [2022-10-16 12:25:24,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1224 states have (on average 1.2712418300653594) internal successors, (1556), 1313 states have internal predecessors, (1556), 405 states have call successors, (405), 114 states have call predecessors, (405), 114 states have return successors, (405), 402 states have call predecessors, (405), 405 states have call successors, (405) [2022-10-16 12:25:24,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2366 transitions. [2022-10-16 12:25:24,502 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2366 transitions. Word has length 180 [2022-10-16 12:25:24,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:25:24,503 INFO L495 AbstractCegarLoop]: Abstraction has 1798 states and 2366 transitions. [2022-10-16 12:25:24,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-10-16 12:25:24,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2366 transitions. [2022-10-16 12:25:24,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-16 12:25:24,507 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:25:24,507 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:25:24,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 12:25:24,508 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting cpumask_nextErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:25:24,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:25:24,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1960156878, now seen corresponding path program 1 times [2022-10-16 12:25:24,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:25:24,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312278694] [2022-10-16 12:25:24,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:25:24,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:25:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:24,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:25:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:24,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:25:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:24,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:25:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:24,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:24,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:24,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:25:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:25:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:25:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:25:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:25:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:25:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:25:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 12:25:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:25:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 12:25:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 12:25:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 12:25:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 12:25:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-16 12:25:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:25,231 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-10-16 12:25:25,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:25:25,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312278694] [2022-10-16 12:25:25,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312278694] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:25:25,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:25:25,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:25:25,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100305626] [2022-10-16 12:25:25,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:25:25,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:25:25,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:25:25,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:25:25,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:25:25,235 INFO L87 Difference]: Start difference. First operand 1798 states and 2366 transitions. Second operand has 7 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 12:25:27,964 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 [] [2022-10-16 12:25:31,786 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 [] [2022-10-16 12:25:35,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:25:35,414 INFO L93 Difference]: Finished difference Result 2021 states and 2693 transitions. [2022-10-16 12:25:35,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:25:35,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 182 [2022-10-16 12:25:35,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:25:35,425 INFO L225 Difference]: With dead ends: 2021 [2022-10-16 12:25:35,425 INFO L226 Difference]: Without dead ends: 2020 [2022-10-16 12:25:35,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:25:35,426 INFO L413 NwaCegarLoop]: 2171 mSDtfsCounter, 711 mSDsluCounter, 5964 mSDsCounter, 0 mSdLazyCounter, 4349 mSolverCounterSat, 497 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 8135 SdHoareTripleChecker+Invalid, 4848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 4349 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-10-16 12:25:35,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 8135 Invalid, 4848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 4349 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2022-10-16 12:25:35,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2022-10-16 12:25:35,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 1821. [2022-10-16 12:25:35,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1240 states have (on average 1.271774193548387) internal successors, (1577), 1331 states have internal predecessors, (1577), 411 states have call successors, (411), 115 states have call predecessors, (411), 115 states have return successors, (411), 407 states have call predecessors, (411), 411 states have call successors, (411) [2022-10-16 12:25:35,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2399 transitions. [2022-10-16 12:25:35,513 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2399 transitions. Word has length 182 [2022-10-16 12:25:35,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:25:35,513 INFO L495 AbstractCegarLoop]: Abstraction has 1821 states and 2399 transitions. [2022-10-16 12:25:35,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 12:25:35,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2399 transitions. [2022-10-16 12:25:35,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-10-16 12:25:35,518 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:25:35,518 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:25:35,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 12:25:35,518 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ERR_PTRErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:25:35,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:25:35,519 INFO L85 PathProgramCache]: Analyzing trace with hash -907680491, now seen corresponding path program 1 times [2022-10-16 12:25:35,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:25:35,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431267650] [2022-10-16 12:25:35,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:25:35,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:25:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:25:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:25:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:25:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:25:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:25:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:25:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:25:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:25:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:25:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:25:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 12:25:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:25:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 12:25:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 12:25:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 12:25:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-16 12:25:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-16 12:25:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:36,288 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-10-16 12:25:36,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:25:36,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431267650] [2022-10-16 12:25:36,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431267650] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:25:36,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:25:36,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 12:25:36,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493983319] [2022-10-16 12:25:36,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:25:36,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:25:36,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:25:36,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:25:36,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:25:36,290 INFO L87 Difference]: Start difference. First operand 1821 states and 2399 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-16 12:25:39,102 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 [] [2022-10-16 12:25:41,177 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 [] [2022-10-16 12:25:47,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:25:47,282 INFO L93 Difference]: Finished difference Result 2843 states and 3903 transitions. [2022-10-16 12:25:47,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:25:47,283 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 184 [2022-10-16 12:25:47,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:25:47,300 INFO L225 Difference]: With dead ends: 2843 [2022-10-16 12:25:47,300 INFO L226 Difference]: Without dead ends: 2842 [2022-10-16 12:25:47,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:25:47,302 INFO L413 NwaCegarLoop]: 3376 mSDtfsCounter, 1942 mSDsluCounter, 10034 mSDsCounter, 0 mSdLazyCounter, 4862 mSolverCounterSat, 1008 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 13410 SdHoareTripleChecker+Invalid, 5872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1008 IncrementalHoareTripleChecker+Valid, 4862 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:25:47,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 13410 Invalid, 5872 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1008 Valid, 4862 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2022-10-16 12:25:47,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2022-10-16 12:25:47,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1820. [2022-10-16 12:25:47,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 1240 states have (on average 1.270967741935484) internal successors, (1576), 1330 states have internal predecessors, (1576), 411 states have call successors, (411), 115 states have call predecessors, (411), 115 states have return successors, (411), 407 states have call predecessors, (411), 411 states have call successors, (411) [2022-10-16 12:25:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 2398 transitions. [2022-10-16 12:25:47,399 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 2398 transitions. Word has length 184 [2022-10-16 12:25:47,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:25:47,400 INFO L495 AbstractCegarLoop]: Abstraction has 1820 states and 2398 transitions. [2022-10-16 12:25:47,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-16 12:25:47,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 2398 transitions. [2022-10-16 12:25:47,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-10-16 12:25:47,405 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:25:47,405 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:25:47,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 12:25:47,406 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting cpumask_nextErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:25:47,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:25:47,406 INFO L85 PathProgramCache]: Analyzing trace with hash -635320471, now seen corresponding path program 1 times [2022-10-16 12:25:47,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:25:47,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222700064] [2022-10-16 12:25:47,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:25:47,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:25:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:25:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:25:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:25:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:25:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:25:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:25:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:25:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:25:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:25:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:25:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:25:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 12:25:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:25:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:47,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 12:25:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:48,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 12:25:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:48,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:48,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:25:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:48,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 12:25:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:48,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:25:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:48,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-10-16 12:25:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:48,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-10-16 12:25:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:25:48,061 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-10-16 12:25:48,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:25:48,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222700064] [2022-10-16 12:25:48,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222700064] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:25:48,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:25:48,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 12:25:48,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095648642] [2022-10-16 12:25:48,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:25:48,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:25:48,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:25:48,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:25:48,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:25:48,065 INFO L87 Difference]: Start difference. First operand 1820 states and 2398 transitions. Second operand has 7 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 12:25:50,783 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 [] [2022-10-16 12:25:52,859 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 [] [2022-10-16 12:26:00,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:26:00,452 INFO L93 Difference]: Finished difference Result 2853 states and 3917 transitions. [2022-10-16 12:26:00,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:26:00,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 183 [2022-10-16 12:26:00,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:26:00,469 INFO L225 Difference]: With dead ends: 2853 [2022-10-16 12:26:00,469 INFO L226 Difference]: Without dead ends: 2850 [2022-10-16 12:26:00,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:26:00,471 INFO L413 NwaCegarLoop]: 3387 mSDtfsCounter, 1509 mSDsluCounter, 9670 mSDsCounter, 0 mSdLazyCounter, 5290 mSolverCounterSat, 496 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 13057 SdHoareTripleChecker+Invalid, 5788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 5290 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:26:00,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 13057 Invalid, 5788 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [496 Valid, 5290 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2022-10-16 12:26:00,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2850 states. [2022-10-16 12:26:00,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2850 to 1814. [2022-10-16 12:26:00,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1236 states have (on average 1.2694174757281553) internal successors, (1569), 1324 states have internal predecessors, (1569), 411 states have call successors, (411), 115 states have call predecessors, (411), 115 states have return successors, (411), 407 states have call predecessors, (411), 411 states have call successors, (411) [2022-10-16 12:26:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 2391 transitions. [2022-10-16 12:26:00,567 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 2391 transitions. Word has length 183 [2022-10-16 12:26:00,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:26:00,568 INFO L495 AbstractCegarLoop]: Abstraction has 1814 states and 2391 transitions. [2022-10-16 12:26:00,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-10-16 12:26:00,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 2391 transitions. [2022-10-16 12:26:00,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-10-16 12:26:00,573 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:26:00,573 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:26:00,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 12:26:00,573 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:26:00,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:26:00,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1776399967, now seen corresponding path program 1 times [2022-10-16 12:26:00,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:26:00,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384679683] [2022-10-16 12:26:00,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:26:00,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:26:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:26:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:26:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:26:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:26:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:26:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:26:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:26:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:26:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:26:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:01,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 12:26:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:01,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:01,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 12:26:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:01,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 12:26:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:01,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:01,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:01,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:01,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:26:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:01,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 12:26:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:01,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-16 12:26:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-10-16 12:26:01,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:26:01,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384679683] [2022-10-16 12:26:01,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384679683] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:26:01,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:26:01,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:26:01,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371558816] [2022-10-16 12:26:01,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:26:01,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:26:01,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:26:01,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:26:01,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:26:01,111 INFO L87 Difference]: Start difference. First operand 1814 states and 2391 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-10-16 12:26:03,963 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 [] [2022-10-16 12:26:07,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:26:09,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:26:12,071 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 [] [2022-10-16 12:26:15,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:26:15,489 INFO L93 Difference]: Finished difference Result 3844 states and 5106 transitions. [2022-10-16 12:26:15,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:26:15,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 186 [2022-10-16 12:26:15,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:26:15,503 INFO L225 Difference]: With dead ends: 3844 [2022-10-16 12:26:15,503 INFO L226 Difference]: Without dead ends: 2054 [2022-10-16 12:26:15,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:26:15,511 INFO L413 NwaCegarLoop]: 2134 mSDtfsCounter, 739 mSDsluCounter, 3911 mSDsCounter, 0 mSdLazyCounter, 3084 mSolverCounterSat, 504 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 6045 SdHoareTripleChecker+Invalid, 3592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 3084 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:26:15,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 6045 Invalid, 3592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 3084 Invalid, 4 Unknown, 0 Unchecked, 14.2s Time] [2022-10-16 12:26:15,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2022-10-16 12:26:15,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 1822. [2022-10-16 12:26:15,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1822 states, 1244 states have (on average 1.2684887459807075) internal successors, (1578), 1332 states have internal predecessors, (1578), 411 states have call successors, (411), 115 states have call predecessors, (411), 115 states have return successors, (411), 407 states have call predecessors, (411), 411 states have call successors, (411) [2022-10-16 12:26:15,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 2400 transitions. [2022-10-16 12:26:15,607 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 2400 transitions. Word has length 186 [2022-10-16 12:26:15,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:26:15,607 INFO L495 AbstractCegarLoop]: Abstraction has 1822 states and 2400 transitions. [2022-10-16 12:26:15,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-10-16 12:26:15,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 2400 transitions. [2022-10-16 12:26:15,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-10-16 12:26:15,612 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:26:15,613 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:26:15,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 12:26:15,613 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:26:15,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:26:15,613 INFO L85 PathProgramCache]: Analyzing trace with hash -628923656, now seen corresponding path program 1 times [2022-10-16 12:26:15,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:26:15,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941220548] [2022-10-16 12:26:15,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:26:15,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:26:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:26:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:26:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:26:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:26:16,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:26:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:26:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:26:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:26:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:26:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:26:16,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 12:26:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:26:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 12:26:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 12:26:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 12:26:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 12:26:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 12:26:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-10-16 12:26:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:16,341 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-10-16 12:26:16,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:26:16,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941220548] [2022-10-16 12:26:16,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941220548] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:26:16,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188756683] [2022-10-16 12:26:16,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:26:16,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:26:16,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:26:16,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:26:16,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 12:26:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:17,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 3107 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:26:17,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:26:17,367 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-10-16 12:26:17,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:26:17,531 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-10-16 12:26:17,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188756683] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:26:17,532 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:26:17,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 9 [2022-10-16 12:26:17,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175837952] [2022-10-16 12:26:17,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:26:17,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 12:26:17,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:26:17,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 12:26:17,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:26:17,535 INFO L87 Difference]: Start difference. First operand 1822 states and 2400 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 7 states have internal predecessors, (94), 6 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2022-10-16 12:26:20,406 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 [] [2022-10-16 12:26:24,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:26:26,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:26:34,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:26:34,132 INFO L93 Difference]: Finished difference Result 4632 states and 6536 transitions. [2022-10-16 12:26:34,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 12:26:34,133 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 7 states have internal predecessors, (94), 6 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) Word has length 191 [2022-10-16 12:26:34,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:26:34,157 INFO L225 Difference]: With dead ends: 4632 [2022-10-16 12:26:34,157 INFO L226 Difference]: Without dead ends: 4630 [2022-10-16 12:26:34,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:26:34,161 INFO L413 NwaCegarLoop]: 3791 mSDtfsCounter, 4781 mSDsluCounter, 9072 mSDsCounter, 0 mSdLazyCounter, 6065 mSolverCounterSat, 1548 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5655 SdHoareTripleChecker+Valid, 12863 SdHoareTripleChecker+Invalid, 7616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1548 IncrementalHoareTripleChecker+Valid, 6065 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:26:34,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5655 Valid, 12863 Invalid, 7616 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1548 Valid, 6065 Invalid, 3 Unknown, 0 Unchecked, 16.1s Time] [2022-10-16 12:26:34,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2022-10-16 12:26:34,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 1815. [2022-10-16 12:26:34,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1240 states have (on average 1.267741935483871) internal successors, (1572), 1326 states have internal predecessors, (1572), 410 states have call successors, (410), 115 states have call predecessors, (410), 115 states have return successors, (410), 406 states have call predecessors, (410), 410 states have call successors, (410) [2022-10-16 12:26:34,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2392 transitions. [2022-10-16 12:26:34,291 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2392 transitions. Word has length 191 [2022-10-16 12:26:34,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:26:34,292 INFO L495 AbstractCegarLoop]: Abstraction has 1815 states and 2392 transitions. [2022-10-16 12:26:34,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 7 states have internal predecessors, (94), 6 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2022-10-16 12:26:34,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2392 transitions. [2022-10-16 12:26:34,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-10-16 12:26:34,297 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:26:34,298 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:26:34,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 12:26:34,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 12:26:34,511 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting cpumask_nextErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:26:34,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:26:34,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1869545703, now seen corresponding path program 1 times [2022-10-16 12:26:34,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:26:34,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69293726] [2022-10-16 12:26:34,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:26:34,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:26:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:26:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:26:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:26:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:26:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:26:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:26:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:26:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:26:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:26:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 12:26:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 12:26:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 12:26:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 12:26:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-10-16 12:26:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 12:26:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 12:26:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-10-16 12:26:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-10-16 12:26:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:35,808 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-10-16 12:26:35,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:26:35,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69293726] [2022-10-16 12:26:35,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69293726] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:26:35,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:26:35,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 12:26:35,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975109053] [2022-10-16 12:26:35,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:26:35,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:26:35,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:26:35,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:26:35,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:26:35,812 INFO L87 Difference]: Start difference. First operand 1815 states and 2392 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-16 12:26:38,512 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 [] [2022-10-16 12:26:44,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:26:44,333 INFO L93 Difference]: Finished difference Result 4645 states and 6275 transitions. [2022-10-16 12:26:44,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:26:44,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 193 [2022-10-16 12:26:44,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:26:44,347 INFO L225 Difference]: With dead ends: 4645 [2022-10-16 12:26:44,347 INFO L226 Difference]: Without dead ends: 2854 [2022-10-16 12:26:44,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:26:44,355 INFO L413 NwaCegarLoop]: 2490 mSDtfsCounter, 3471 mSDsluCounter, 5370 mSDsCounter, 0 mSdLazyCounter, 4050 mSolverCounterSat, 2032 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3618 SdHoareTripleChecker+Valid, 7860 SdHoareTripleChecker+Invalid, 6083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2032 IncrementalHoareTripleChecker+Valid, 4050 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:26:44,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3618 Valid, 7860 Invalid, 6083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2032 Valid, 4050 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-10-16 12:26:44,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2022-10-16 12:26:44,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 1818. [2022-10-16 12:26:44,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1818 states, 1243 states have (on average 1.2670957361222848) internal successors, (1575), 1329 states have internal predecessors, (1575), 410 states have call successors, (410), 115 states have call predecessors, (410), 115 states have return successors, (410), 406 states have call predecessors, (410), 410 states have call successors, (410) [2022-10-16 12:26:44,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1818 states to 1818 states and 2395 transitions. [2022-10-16 12:26:44,452 INFO L78 Accepts]: Start accepts. Automaton has 1818 states and 2395 transitions. Word has length 193 [2022-10-16 12:26:44,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:26:44,453 INFO L495 AbstractCegarLoop]: Abstraction has 1818 states and 2395 transitions. [2022-10-16 12:26:44,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-16 12:26:44,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1818 states and 2395 transitions. [2022-10-16 12:26:44,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-10-16 12:26:44,458 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:26:44,458 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:26:44,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 12:26:44,459 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:26:44,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:26:44,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1260342158, now seen corresponding path program 1 times [2022-10-16 12:26:44,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:26:44,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074156162] [2022-10-16 12:26:44,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:26:44,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:26:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:26:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:26:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:26:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:26:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:26:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:26:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:26:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:44,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:26:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:26:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 12:26:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 12:26:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 12:26:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:26:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 12:26:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-16 12:26:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-16 12:26:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:45,138 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-10-16 12:26:45,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:26:45,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074156162] [2022-10-16 12:26:45,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074156162] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:26:45,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:26:45,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 12:26:45,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870452286] [2022-10-16 12:26:45,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:26:45,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:26:45,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:26:45,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:26:45,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:26:45,140 INFO L87 Difference]: Start difference. First operand 1818 states and 2395 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-16 12:26:48,022 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 [] [2022-10-16 12:26:50,100 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 [] [2022-10-16 12:26:58,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:26:58,495 INFO L93 Difference]: Finished difference Result 4727 states and 6401 transitions. [2022-10-16 12:26:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:26:58,495 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 193 [2022-10-16 12:26:58,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:26:58,505 INFO L225 Difference]: With dead ends: 4727 [2022-10-16 12:26:58,506 INFO L226 Difference]: Without dead ends: 2933 [2022-10-16 12:26:58,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:26:58,513 INFO L413 NwaCegarLoop]: 3421 mSDtfsCounter, 1550 mSDsluCounter, 8646 mSDsCounter, 0 mSdLazyCounter, 5419 mSolverCounterSat, 502 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 12067 SdHoareTripleChecker+Invalid, 5923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 5419 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:26:58,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 12067 Invalid, 5923 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [502 Valid, 5419 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2022-10-16 12:26:58,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2022-10-16 12:26:58,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 1819. [2022-10-16 12:26:58,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1244 states have (on average 1.2668810289389068) internal successors, (1576), 1330 states have internal predecessors, (1576), 410 states have call successors, (410), 115 states have call predecessors, (410), 115 states have return successors, (410), 406 states have call predecessors, (410), 410 states have call successors, (410) [2022-10-16 12:26:58,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2396 transitions. [2022-10-16 12:26:58,610 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2396 transitions. Word has length 193 [2022-10-16 12:26:58,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:26:58,610 INFO L495 AbstractCegarLoop]: Abstraction has 1819 states and 2396 transitions. [2022-10-16 12:26:58,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-10-16 12:26:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2396 transitions. [2022-10-16 12:26:58,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-10-16 12:26:58,615 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:26:58,615 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:26:58,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 12:26:58,616 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:26:58,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:26:58,616 INFO L85 PathProgramCache]: Analyzing trace with hash -17339961, now seen corresponding path program 1 times [2022-10-16 12:26:58,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:26:58,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351698288] [2022-10-16 12:26:58,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:26:58,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:26:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:58,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:26:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:58,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:26:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:58,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:26:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:58,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:58,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:58,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:26:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:58,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:58,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:26:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:26:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:26:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:26:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:26:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 12:26:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 12:26:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 12:26:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:26:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:26:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:26:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:26:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 12:26:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-16 12:26:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:26:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-10-16 12:26:59,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:26:59,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351698288] [2022-10-16 12:26:59,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351698288] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:26:59,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698648827] [2022-10-16 12:26:59,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:26:59,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:26:59,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:26:59,209 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:26:59,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 12:27:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:00,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 2976 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:27:00,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:27:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-10-16 12:27:00,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:27:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-10-16 12:27:00,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698648827] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:27:00,249 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:27:00,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 9 [2022-10-16 12:27:00,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618205433] [2022-10-16 12:27:00,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:27:00,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 12:27:00,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:27:00,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 12:27:00,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:27:00,251 INFO L87 Difference]: Start difference. First operand 1819 states and 2396 transitions. Second operand has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 7 states have internal predecessors, (106), 1 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-10-16 12:27:03,142 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 [] [2022-10-16 12:27:05,220 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 [] [2022-10-16 12:27:18,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:27:18,807 INFO L93 Difference]: Finished difference Result 4721 states and 6681 transitions. [2022-10-16 12:27:18,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 12:27:18,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 7 states have internal predecessors, (106), 1 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 192 [2022-10-16 12:27:18,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:27:18,825 INFO L225 Difference]: With dead ends: 4721 [2022-10-16 12:27:18,825 INFO L226 Difference]: Without dead ends: 4718 [2022-10-16 12:27:18,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:27:18,830 INFO L413 NwaCegarLoop]: 4704 mSDtfsCounter, 3666 mSDsluCounter, 16236 mSDsCounter, 0 mSdLazyCounter, 9783 mSolverCounterSat, 766 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4575 SdHoareTripleChecker+Valid, 20940 SdHoareTripleChecker+Invalid, 10551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 766 IncrementalHoareTripleChecker+Valid, 9783 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:27:18,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4575 Valid, 20940 Invalid, 10551 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [766 Valid, 9783 Invalid, 2 Unknown, 0 Unchecked, 18.1s Time] [2022-10-16 12:27:18,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4718 states. [2022-10-16 12:27:19,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4718 to 1829. [2022-10-16 12:27:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1254 states have (on average 1.2671451355661882) internal successors, (1589), 1339 states have internal predecessors, (1589), 411 states have call successors, (411), 115 states have call predecessors, (411), 115 states have return successors, (411), 407 states have call predecessors, (411), 411 states have call successors, (411) [2022-10-16 12:27:19,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2411 transitions. [2022-10-16 12:27:19,017 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2411 transitions. Word has length 192 [2022-10-16 12:27:19,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:27:19,018 INFO L495 AbstractCegarLoop]: Abstraction has 1829 states and 2411 transitions. [2022-10-16 12:27:19,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 7 states have internal predecessors, (106), 1 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-10-16 12:27:19,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2411 transitions. [2022-10-16 12:27:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-10-16 12:27:19,023 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:27:19,023 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:27:19,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 12:27:19,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 12:27:19,237 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:27:19,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:27:19,238 INFO L85 PathProgramCache]: Analyzing trace with hash -537536305, now seen corresponding path program 1 times [2022-10-16 12:27:19,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:27:19,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146363787] [2022-10-16 12:27:19,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:27:19,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:27:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:27:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:27:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:27:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:27:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:27:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:27:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:27:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:27:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:27:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:27:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:27:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:27:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 12:27:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 12:27:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 12:27:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:27:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:27:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 12:27:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-16 12:27:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:19,800 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-10-16 12:27:19,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:27:19,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146363787] [2022-10-16 12:27:19,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146363787] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:27:19,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065277187] [2022-10-16 12:27:19,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:27:19,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:27:19,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:27:19,803 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:27:19,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 12:27:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:20,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 2977 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:27:20,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:27:20,631 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-10-16 12:27:20,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:27:20,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065277187] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:27:20,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:27:20,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-10-16 12:27:20,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297795218] [2022-10-16 12:27:20,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:27:20,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:27:20,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:27:20,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:27:20,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:27:20,634 INFO L87 Difference]: Start difference. First operand 1829 states and 2411 transitions. Second operand has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-10-16 12:27:20,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:27:20,771 INFO L93 Difference]: Finished difference Result 4525 states and 6088 transitions. [2022-10-16 12:27:20,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:27:20,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 193 [2022-10-16 12:27:20,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:27:20,780 INFO L225 Difference]: With dead ends: 4525 [2022-10-16 12:27:20,780 INFO L226 Difference]: Without dead ends: 2720 [2022-10-16 12:27:20,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:27:20,788 INFO L413 NwaCegarLoop]: 3622 mSDtfsCounter, 828 mSDsluCounter, 5117 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 8739 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:27:20,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 8739 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:27:20,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2720 states. [2022-10-16 12:27:20,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2720 to 1824. [2022-10-16 12:27:20,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1252 states have (on average 1.2643769968051117) internal successors, (1583), 1334 states have internal predecessors, (1583), 410 states have call successors, (410), 115 states have call predecessors, (410), 115 states have return successors, (410), 406 states have call predecessors, (410), 410 states have call successors, (410) [2022-10-16 12:27:20,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2403 transitions. [2022-10-16 12:27:20,882 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2403 transitions. Word has length 193 [2022-10-16 12:27:20,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:27:20,883 INFO L495 AbstractCegarLoop]: Abstraction has 1824 states and 2403 transitions. [2022-10-16 12:27:20,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-10-16 12:27:20,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2403 transitions. [2022-10-16 12:27:20,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-10-16 12:27:20,919 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:27:20,919 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:27:20,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 12:27:21,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:27:21,121 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting cpumask_nextErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:27:21,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:27:21,122 INFO L85 PathProgramCache]: Analyzing trace with hash -741934373, now seen corresponding path program 1 times [2022-10-16 12:27:21,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:27:21,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38723828] [2022-10-16 12:27:21,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:27:21,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:27:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:27:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:27:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:27:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:27:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:27:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:27:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:27:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:27:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:27:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:27:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:27:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 12:27:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:27:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-10-16 12:27:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-16 12:27:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-16 12:27:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-16 12:27:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-10-16 12:27:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-10-16 12:27:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:22,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:23,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-10-16 12:27:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:23,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:23,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-16 12:27:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:23,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-10-16 12:27:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:23,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-10-16 12:27:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:23,193 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-10-16 12:27:23,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:27:23,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38723828] [2022-10-16 12:27:23,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38723828] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:27:23,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:27:23,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 12:27:23,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352279258] [2022-10-16 12:27:23,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:27:23,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 12:27:23,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:27:23,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 12:27:23,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:27:23,195 INFO L87 Difference]: Start difference. First operand 1824 states and 2403 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-10-16 12:27:26,045 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 [] [2022-10-16 12:27:28,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:27:31,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 12:27:33,991 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 [] [2022-10-16 12:27:40,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:27:40,147 INFO L93 Difference]: Finished difference Result 4701 states and 6351 transitions. [2022-10-16 12:27:40,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 12:27:40,147 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 214 [2022-10-16 12:27:40,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:27:40,157 INFO L225 Difference]: With dead ends: 4701 [2022-10-16 12:27:40,157 INFO L226 Difference]: Without dead ends: 2901 [2022-10-16 12:27:40,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:27:40,164 INFO L413 NwaCegarLoop]: 3405 mSDtfsCounter, 1457 mSDsluCounter, 12184 mSDsCounter, 0 mSdLazyCounter, 6461 mSolverCounterSat, 479 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 15589 SdHoareTripleChecker+Invalid, 6944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 6461 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-10-16 12:27:40,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 15589 Invalid, 6944 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [479 Valid, 6461 Invalid, 4 Unknown, 0 Unchecked, 16.6s Time] [2022-10-16 12:27:40,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2901 states. [2022-10-16 12:27:40,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2901 to 1829. [2022-10-16 12:27:40,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1829 states, 1256 states have (on average 1.2635350318471337) internal successors, (1587), 1338 states have internal predecessors, (1587), 410 states have call successors, (410), 115 states have call predecessors, (410), 116 states have return successors, (416), 407 states have call predecessors, (416), 410 states have call successors, (416) [2022-10-16 12:27:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2413 transitions. [2022-10-16 12:27:40,271 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2413 transitions. Word has length 214 [2022-10-16 12:27:40,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:27:40,272 INFO L495 AbstractCegarLoop]: Abstraction has 1829 states and 2413 transitions. [2022-10-16 12:27:40,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-10-16 12:27:40,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2413 transitions. [2022-10-16 12:27:40,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-10-16 12:27:40,277 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:27:40,277 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:27:40,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 12:27:40,277 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [xennet_release_tx_bufsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, xennet_release_tx_bufsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, lowmem_page_addressErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2022-10-16 12:27:40,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:27:40,278 INFO L85 PathProgramCache]: Analyzing trace with hash 692252511, now seen corresponding path program 1 times [2022-10-16 12:27:40,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:27:40,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770432575] [2022-10-16 12:27:40,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:27:40,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:27:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 12:27:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 12:27:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 12:27:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:27:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 12:27:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:27:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 12:27:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:27:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-16 12:27:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-10-16 12:27:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 12:27:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 12:27:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 12:27:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 12:27:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 12:27:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 12:27:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 12:27:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-16 12:27:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 12:27:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-10-16 12:27:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:40,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-10-16 12:27:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:41,005 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-10-16 12:27:41,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:27:41,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770432575] [2022-10-16 12:27:41,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770432575] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:27:41,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967505698] [2022-10-16 12:27:41,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:27:41,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:27:41,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:27:41,009 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:27:41,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 12:27:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:27:41,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 3006 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 12:27:41,842 INFO L286 TraceCheckSpWp]: Computing forward predicates...