/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:13:22,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:13:22,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:13:22,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:13:22,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:13:22,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:13:22,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:13:22,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:13:22,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:13:22,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:13:22,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:13:22,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:13:22,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:13:22,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:13:22,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:13:22,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:13:22,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:13:22,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:13:22,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:13:22,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:13:22,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:13:22,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:13:22,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:13:22,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:13:22,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:13:22,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:13:22,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:13:22,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:13:22,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:13:22,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:13:22,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:13:22,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:13:22,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:13:22,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:13:22,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:13:22,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:13:22,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:13:22,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:13:22,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:13:22,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:13:22,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:13:22,482 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:13:22,511 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:13:22,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:13:22,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:13:22,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:13:22,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:13:22,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:13:22,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:13:22,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:13:22,515 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:13:22,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:13:22,515 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:13:22,516 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:13:22,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:13:22,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:13:22,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:13:22,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:13:22,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:13:22,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:13:22,517 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:13:22,517 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:13:22,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:13:22,517 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:13:22,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:13:22,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:13:22,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:13:22,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:13:22,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:22,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:13:22,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:13:22,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:13:22,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:13:22,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:13:22,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:13:22,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:13:22,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:13:23,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:13:23,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:13:23,029 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:13:23,030 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:13:23,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i [2022-10-15 21:13:23,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b6cbd71/0599bec890f44d5589dbe10a7c45520f/FLAG3223f900c [2022-10-15 21:13:24,558 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:13:24,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i [2022-10-15 21:13:24,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b6cbd71/0599bec890f44d5589dbe10a7c45520f/FLAG3223f900c [2022-10-15 21:13:24,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29b6cbd71/0599bec890f44d5589dbe10a7c45520f [2022-10-15 21:13:24,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:13:24,806 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:13:24,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:13:24,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:13:24,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:13:24,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:13:24" (1/1) ... [2022-10-15 21:13:24,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23bca8c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:24, skipping insertion in model container [2022-10-15 21:13:24,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:13:24" (1/1) ... [2022-10-15 21:13:24,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:13:25,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:13:26,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i[158583,158596] [2022-10-15 21:13:27,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:13:27,482 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:13:27,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i[158583,158596] [2022-10-15 21:13:28,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:13:28,446 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:13:28,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28 WrapperNode [2022-10-15 21:13:28,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:13:28,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:13:28,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:13:28,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:13:28,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28" (1/1) ... [2022-10-15 21:13:28,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28" (1/1) ... [2022-10-15 21:13:28,863 INFO L138 Inliner]: procedures = 220, calls = 1799, calls flagged for inlining = 81, calls inlined = 72, statements flattened = 3298 [2022-10-15 21:13:28,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:13:28,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:13:28,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:13:28,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:13:28,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28" (1/1) ... [2022-10-15 21:13:28,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28" (1/1) ... [2022-10-15 21:13:28,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28" (1/1) ... [2022-10-15 21:13:28,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28" (1/1) ... [2022-10-15 21:13:29,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28" (1/1) ... [2022-10-15 21:13:29,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28" (1/1) ... [2022-10-15 21:13:29,208 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28" (1/1) ... [2022-10-15 21:13:29,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28" (1/1) ... [2022-10-15 21:13:29,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:13:29,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:13:29,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:13:29,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:13:29,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28" (1/1) ... [2022-10-15 21:13:29,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:13:29,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:13:29,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:13:29,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:13:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure nla_get_u32 [2022-10-15 21:13:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_get_u32 [2022-10-15 21:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_xmit [2022-10-15 21:13:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_xmit [2022-10-15 21:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:13:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:13:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:13:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure nla_put_u32 [2022-10-15 21:13:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure nla_put_u32 [2022-10-15 21:13:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_start_tx [2022-10-15 21:13:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_start_tx [2022-10-15 21:13:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:13:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:13:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-10-15 21:13:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-10-15 21:13:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_bits [2022-10-15 21:13:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_bits [2022-10-15 21:13:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-10-15 21:13:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-10-15 21:13:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-10-15 21:13:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-10-15 21:13:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-10-15 21:13:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-10-15 21:13:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:13:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:13:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-10-15 21:13:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-10-15 21:13:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-15 21:13:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-15 21:13:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure __symbol_put [2022-10-15 21:13:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __symbol_put [2022-10-15 21:13:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:13:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:13:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-10-15 21:13:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-10-15 21:13:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:13:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:13:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_fill_info [2022-10-15 21:13:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_fill_info [2022-10-15 21:13:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:13:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:13:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:13:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_rx_desc [2022-10-15 21:13:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_rx_desc [2022-10-15 21:13:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_update_aggregation_stats [2022-10-15 21:13:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_update_aggregation_stats [2022-10-15 21:13:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:13:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-10-15 21:13:29,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-10-15 21:13:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:13:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_tx_frm [2022-10-15 21:13:29,466 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_tx_frm [2022-10-15 21:13:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:13:29,466 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:13:29,467 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:13:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_dequeue [2022-10-15 21:13:29,467 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_dequeue [2022-10-15 21:13:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-15 21:13:29,467 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-15 21:13:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-10-15 21:13:29,467 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-10-15 21:13:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-15 21:13:29,469 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-15 21:13:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_rx_desc_len [2022-10-15 21:13:29,470 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_rx_desc_len [2022-10-15 21:13:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:13:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:13:29,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:13:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_tx_queue_len [2022-10-15 21:13:29,472 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_tx_queue_len [2022-10-15 21:13:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-15 21:13:29,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-15 21:13:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:13:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2022-10-15 21:13:29,473 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2022-10-15 21:13:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:13:29,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_21 [2022-10-15 21:13:29,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_21 [2022-10-15 21:13:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-10-15 21:13:29,474 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-10-15 21:13:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:13:29,474 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:13:29,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-10-15 21:13:29,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-10-15 21:13:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-15 21:13:29,475 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-15 21:13:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_get_size [2022-10-15 21:13:29,475 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_get_size [2022-10-15 21:13:29,475 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_netlink_parms [2022-10-15 21:13:29,475 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_netlink_parms [2022-10-15 21:13:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-10-15 21:13:29,476 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-10-15 21:13:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:13:29,476 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:13:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:13:29,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:13:29,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:13:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:13:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-10-15 21:13:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-10-15 21:13:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-15 21:13:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-15 21:13:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2022-10-15 21:13:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2022-10-15 21:13:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:13:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-10-15 21:13:29,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-10-15 21:13:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_changelink [2022-10-15 21:13:29,478 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_changelink [2022-10-15 21:13:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:13:29,478 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:13:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-10-15 21:13:29,479 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-10-15 21:13:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-15 21:13:29,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-15 21:13:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-10-15 21:13:29,479 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-10-15 21:13:29,479 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_open [2022-10-15 21:13:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_open [2022-10-15 21:13:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_rx_done [2022-10-15 21:13:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_rx_done [2022-10-15 21:13:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-15 21:13:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-15 21:13:29,480 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2022-10-15 21:13:29,481 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2022-10-15 21:13:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-10-15 21:13:29,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-10-15 21:13:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_can_send_aggregate [2022-10-15 21:13:29,481 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_can_send_aggregate [2022-10-15 21:13:29,481 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-15 21:13:29,481 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-15 21:13:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-15 21:13:29,482 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-15 21:13:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:13:29,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:13:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-10-15 21:13:29,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-10-15 21:13:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-15 21:13:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-15 21:13:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-15 21:13:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-15 21:13:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure caif_hsi_newlink [2022-10-15 21:13:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure caif_hsi_newlink [2022-10-15 21:13:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-10-15 21:13:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-10-15 21:13:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:13:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-10-15 21:13:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-10-15 21:13:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_close [2022-10-15 21:13:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_close [2022-10-15 21:13:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-10-15 21:13:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-10-15 21:13:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure cfhsi_abort_tx [2022-10-15 21:13:29,485 INFO L138 BoogieDeclarations]: Found implementation of procedure cfhsi_abort_tx [2022-10-15 21:13:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-15 21:13:29,485 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-10-15 21:13:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:13:29,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:13:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-15 21:13:29,485 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-15 21:13:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-10-15 21:13:29,486 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-10-15 21:13:30,166 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:13:30,171 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:13:30,886 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:13:34,861 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:13:34,883 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:13:34,883 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 21:13:34,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:34 BoogieIcfgContainer [2022-10-15 21:13:34,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:13:34,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:13:34,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:13:34,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:13:34,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:13:24" (1/3) ... [2022-10-15 21:13:34,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa48c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:34, skipping insertion in model container [2022-10-15 21:13:34,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:13:28" (2/3) ... [2022-10-15 21:13:34,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa48c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:13:34, skipping insertion in model container [2022-10-15 21:13:34,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:13:34" (3/3) ... [2022-10-15 21:13:34,902 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--caif--caif_hsi.ko-entry_point.cil.out.i [2022-10-15 21:13:34,929 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:13:34,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 94 error locations. [2022-10-15 21:13:35,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:13:35,052 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;@421921e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:13:35,053 INFO L358 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2022-10-15 21:13:35,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 1272 states, 850 states have (on average 1.4094117647058824) internal successors, (1198), 962 states have internal predecessors, (1198), 255 states have call successors, (255), 73 states have call predecessors, (255), 72 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2022-10-15 21:13:35,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-15 21:13:35,083 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:35,085 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:13:35,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting caif_hsi_get_sizeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [cfhsi_rx_descErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cfhsi_rx_descErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, cfhsi_rx_descErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 91 more)] === [2022-10-15 21:13:35,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:35,094 INFO L85 PathProgramCache]: Analyzing trace with hash 266940351, now seen corresponding path program 1 times [2022-10-15 21:13:35,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:35,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639125617] [2022-10-15 21:13:35,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:35,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:35,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:36,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:36,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:13:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:36,053 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 21:13:36,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:36,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639125617] [2022-10-15 21:13:36,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639125617] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:36,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:36,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:13:36,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440773989] [2022-10-15 21:13:36,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:36,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:36,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:36,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:36,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:13:36,138 INFO L87 Difference]: Start difference. First operand has 1272 states, 850 states have (on average 1.4094117647058824) internal successors, (1198), 962 states have internal predecessors, (1198), 255 states have call successors, (255), 73 states have call predecessors, (255), 72 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 21:13:39,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:13:42,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:42,560 INFO L93 Difference]: Finished difference Result 3951 states and 5561 transitions. [2022-10-15 21:13:42,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:13:42,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2022-10-15 21:13:42,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:42,617 INFO L225 Difference]: With dead ends: 3951 [2022-10-15 21:13:42,617 INFO L226 Difference]: Without dead ends: 2631 [2022-10-15 21:13:42,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:42,642 INFO L413 NwaCegarLoop]: 1866 mSDtfsCounter, 2263 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2455 SdHoareTripleChecker+Valid, 3859 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:42,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2455 Valid, 3859 Invalid, 1987 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [695 Valid, 1292 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-10-15 21:13:42,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2022-10-15 21:13:42,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2201. [2022-10-15 21:13:42,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 1540 states have (on average 1.3733766233766234) internal successors, (2115), 1637 states have internal predecessors, (2115), 456 states have call successors, (456), 133 states have call predecessors, (456), 133 states have return successors, (456), 455 states have call predecessors, (456), 456 states have call successors, (456) [2022-10-15 21:13:43,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 3027 transitions. [2022-10-15 21:13:43,025 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 3027 transitions. Word has length 33 [2022-10-15 21:13:43,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:43,026 INFO L495 AbstractCegarLoop]: Abstraction has 2201 states and 3027 transitions. [2022-10-15 21:13:43,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 21:13:43,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 3027 transitions. [2022-10-15 21:13:43,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-15 21:13:43,032 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:43,032 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:13:43,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:13:43,033 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [cfhsi_rx_descErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cfhsi_rx_descErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, cfhsi_rx_descErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 91 more)] === [2022-10-15 21:13:43,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:43,034 INFO L85 PathProgramCache]: Analyzing trace with hash -274891193, now seen corresponding path program 1 times [2022-10-15 21:13:43,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:43,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466279676] [2022-10-15 21:13:43,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:43,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:43,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:43,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:43,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:13:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:43,354 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 21:13:43,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:43,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466279676] [2022-10-15 21:13:43,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466279676] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:43,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:43,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:13:43,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995277660] [2022-10-15 21:13:43,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:43,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:13:43,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:43,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:13:43,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:13:43,369 INFO L87 Difference]: Start difference. First operand 2201 states and 3027 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 21:13:49,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:49,145 INFO L93 Difference]: Finished difference Result 6309 states and 8779 transitions. [2022-10-15 21:13:49,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:13:49,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-10-15 21:13:49,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:49,187 INFO L225 Difference]: With dead ends: 6309 [2022-10-15 21:13:49,187 INFO L226 Difference]: Without dead ends: 4118 [2022-10-15 21:13:49,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:49,205 INFO L413 NwaCegarLoop]: 1951 mSDtfsCounter, 1779 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 4027 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:49,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 4027 Invalid, 1629 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [466 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-10-15 21:13:49,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4118 states. [2022-10-15 21:13:49,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4118 to 3522. [2022-10-15 21:13:49,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3522 states, 2561 states have (on average 1.393205778992581) internal successors, (3568), 2671 states have internal predecessors, (3568), 676 states have call successors, (676), 213 states have call predecessors, (676), 213 states have return successors, (676), 675 states have call predecessors, (676), 676 states have call successors, (676) [2022-10-15 21:13:49,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 4920 transitions. [2022-10-15 21:13:49,498 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 4920 transitions. Word has length 39 [2022-10-15 21:13:49,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:49,500 INFO L495 AbstractCegarLoop]: Abstraction has 3522 states and 4920 transitions. [2022-10-15 21:13:49,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 21:13:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 4920 transitions. [2022-10-15 21:13:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 21:13:49,513 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:49,514 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:13:49,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:13:49,515 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting cfhsi_tx_frmErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [cfhsi_rx_descErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cfhsi_rx_descErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, cfhsi_rx_descErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 91 more)] === [2022-10-15 21:13:49,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:49,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2129338181, now seen corresponding path program 1 times [2022-10-15 21:13:49,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:49,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91627479] [2022-10-15 21:13:49,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:49,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:50,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:50,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:50,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:13:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:50,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-15 21:13:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:50,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-15 21:13:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:50,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:13:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:50,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 21:13:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:50,335 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 21:13:50,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:50,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91627479] [2022-10-15 21:13:50,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91627479] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:50,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:50,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:13:50,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226307809] [2022-10-15 21:13:50,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:50,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:13:50,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:50,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:13:50,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:13:50,342 INFO L87 Difference]: Start difference. First operand 3522 states and 4920 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:13:54,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:13:54,427 INFO L93 Difference]: Finished difference Result 7654 states and 10922 transitions. [2022-10-15 21:13:54,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:13:54,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 67 [2022-10-15 21:13:54,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:13:54,473 INFO L225 Difference]: With dead ends: 7654 [2022-10-15 21:13:54,474 INFO L226 Difference]: Without dead ends: 4142 [2022-10-15 21:13:54,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:54,508 INFO L413 NwaCegarLoop]: 1575 mSDtfsCounter, 932 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 633 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 1714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:13:54,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 3478 Invalid, 1714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-10-15 21:13:54,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4142 states. [2022-10-15 21:13:54,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4142 to 3550. [2022-10-15 21:13:54,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 2585 states have (on average 1.39110251450677) internal successors, (3596), 2695 states have internal predecessors, (3596), 680 states have call successors, (680), 213 states have call predecessors, (680), 213 states have return successors, (680), 679 states have call predecessors, (680), 680 states have call successors, (680) [2022-10-15 21:13:54,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 4956 transitions. [2022-10-15 21:13:54,931 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 4956 transitions. Word has length 67 [2022-10-15 21:13:54,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:13:54,932 INFO L495 AbstractCegarLoop]: Abstraction has 3550 states and 4956 transitions. [2022-10-15 21:13:54,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:13:54,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 4956 transitions. [2022-10-15 21:13:54,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-15 21:13:54,935 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:13:54,936 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-15 21:13:54,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:13:54,937 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_skb_allocErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [cfhsi_rx_descErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cfhsi_rx_descErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, cfhsi_rx_descErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 91 more)] === [2022-10-15 21:13:54,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:13:54,938 INFO L85 PathProgramCache]: Analyzing trace with hash -74446420, now seen corresponding path program 1 times [2022-10-15 21:13:54,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:13:54,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654870730] [2022-10-15 21:13:54,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:13:54,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:13:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:55,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:13:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:55,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:13:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:55,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:13:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:55,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:13:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:55,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:13:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:55,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-15 21:13:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:55,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-15 21:13:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:13:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-15 21:13:56,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:13:56,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654870730] [2022-10-15 21:13:56,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654870730] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:13:56,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:13:56,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:13:56,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700884441] [2022-10-15 21:13:56,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:13:56,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:13:56,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:13:56,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:13:56,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:13:56,022 INFO L87 Difference]: Start difference. First operand 3550 states and 4956 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:14:00,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:00,503 INFO L93 Difference]: Finished difference Result 7596 states and 10844 transitions. [2022-10-15 21:14:00,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:14:00,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 68 [2022-10-15 21:14:00,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:00,545 INFO L225 Difference]: With dead ends: 7596 [2022-10-15 21:14:00,545 INFO L226 Difference]: Without dead ends: 4056 [2022-10-15 21:14:00,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:14:00,575 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 435 mSDsluCounter, 4500 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 6126 SdHoareTripleChecker+Invalid, 2239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:00,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 6126 Invalid, 2239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-10-15 21:14:00,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4056 states. [2022-10-15 21:14:00,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4056 to 3566. [2022-10-15 21:14:00,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3566 states, 2597 states have (on average 1.3892953407778206) internal successors, (3608), 2707 states have internal predecessors, (3608), 680 states have call successors, (680), 213 states have call predecessors, (680), 217 states have return successors, (693), 683 states have call predecessors, (693), 680 states have call successors, (693) [2022-10-15 21:14:00,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3566 states to 3566 states and 4981 transitions. [2022-10-15 21:14:00,839 INFO L78 Accepts]: Start accepts. Automaton has 3566 states and 4981 transitions. Word has length 68 [2022-10-15 21:14:00,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:00,840 INFO L495 AbstractCegarLoop]: Abstraction has 3566 states and 4981 transitions. [2022-10-15 21:14:00,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:14:00,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3566 states and 4981 transitions. [2022-10-15 21:14:00,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 21:14:00,844 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:00,845 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-15 21:14:00,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:14:00,845 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting cfhsi_dequeueErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [cfhsi_rx_descErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cfhsi_rx_descErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, cfhsi_rx_descErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 91 more)] === [2022-10-15 21:14:00,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:00,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1592952956, now seen corresponding path program 1 times [2022-10-15 21:14:00,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:00,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952833892] [2022-10-15 21:14:00,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:00,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:01,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:01,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:14:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:01,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:14:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:01,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:14:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:01,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:14:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:01,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-15 21:14:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:01,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-15 21:14:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:01,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:14:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:01,435 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 21:14:01,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:01,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952833892] [2022-10-15 21:14:01,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952833892] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:01,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:01,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:14:01,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912848164] [2022-10-15 21:14:01,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:01,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:14:01,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:01,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:14:01,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:14:01,444 INFO L87 Difference]: Start difference. First operand 3566 states and 4981 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-15 21:14:06,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:14:06,452 INFO L93 Difference]: Finished difference Result 4109 states and 5873 transitions. [2022-10-15 21:14:06,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:14:06,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-10-15 21:14:06,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:14:06,488 INFO L225 Difference]: With dead ends: 4109 [2022-10-15 21:14:06,488 INFO L226 Difference]: Without dead ends: 4108 [2022-10-15 21:14:06,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:14:06,493 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 451 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 4211 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:14:06,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 4211 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 1552 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-10-15 21:14:06,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2022-10-15 21:14:06,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 3570. [2022-10-15 21:14:06,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3570 states, 2601 states have (on average 1.3886966551326414) internal successors, (3612), 2711 states have internal predecessors, (3612), 680 states have call successors, (680), 213 states have call predecessors, (680), 217 states have return successors, (693), 683 states have call predecessors, (693), 680 states have call successors, (693) [2022-10-15 21:14:06,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3570 states to 3570 states and 4985 transitions. [2022-10-15 21:14:06,760 INFO L78 Accepts]: Start accepts. Automaton has 3570 states and 4985 transitions. Word has length 71 [2022-10-15 21:14:06,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:14:06,761 INFO L495 AbstractCegarLoop]: Abstraction has 3570 states and 4985 transitions. [2022-10-15 21:14:06,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-15 21:14:06,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3570 states and 4985 transitions. [2022-10-15 21:14:06,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-15 21:14:06,763 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:14:06,764 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-10-15 21:14:06,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:14:06,764 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_skb_allocErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [cfhsi_rx_descErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cfhsi_rx_descErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, cfhsi_rx_descErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 91 more)] === [2022-10-15 21:14:06,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:14:06,765 INFO L85 PathProgramCache]: Analyzing trace with hash 454841282, now seen corresponding path program 1 times [2022-10-15 21:14:06,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:14:06,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114561863] [2022-10-15 21:14:06,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:14:06,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:14:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:14:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:14:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:14:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-15 21:14:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:14:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-15 21:14:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-15 21:14:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:14:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:14:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-15 21:14:07,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:14:07,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114561863] [2022-10-15 21:14:07,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114561863] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:14:07,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:14:07,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:14:07,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423528217] [2022-10-15 21:14:07,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:14:07,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:14:07,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:14:07,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:14:07,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:14:07,759 INFO L87 Difference]: Start difference. First operand 3570 states and 4985 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)