java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:22:44,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:22:44,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:22:44,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:22:44,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:22:44,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:22:44,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:22:44,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:22:44,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:22:44,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:22:44,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:22:44,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:22:44,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:22:44,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:22:44,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:22:44,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:22:44,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:22:44,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:22:44,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:22:44,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:22:44,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:22:44,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:22:44,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:22:44,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:22:44,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:22:44,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:22:44,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:22:44,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:22:44,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:22:44,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:22:44,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:22:44,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:22:44,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:22:44,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:22:44,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:22:44,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:22:44,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:22:44,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:22:44,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:22:44,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:22:44,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:22:44,472 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:22:44,487 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:22:44,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:22:44,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:22:44,488 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:22:44,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:22:44,489 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:22:44,489 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:22:44,489 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:22:44,489 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:22:44,489 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:22:44,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:22:44,490 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:22:44,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:22:44,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:22:44,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:22:44,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:22:44,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:22:44,491 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:22:44,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:22:44,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:22:44,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:22:44,492 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:22:44,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:22:44,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:22:44,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:22:44,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:22:44,493 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:22:44,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:22:44,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:22:44,494 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:22:44,524 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:22:44,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:22:44,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:22:44,542 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:22:44,543 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:22:44,544 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2019-09-16 17:22:44,609 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76a169171/228f2a77c89c4f1fb05eee1764b19144/FLAGb1ea65560 [2019-09-16 17:22:45,334 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:22:45,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2019-09-16 17:22:45,375 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76a169171/228f2a77c89c4f1fb05eee1764b19144/FLAGb1ea65560 [2019-09-16 17:22:45,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76a169171/228f2a77c89c4f1fb05eee1764b19144 [2019-09-16 17:22:45,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:22:45,474 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:22:45,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:22:45,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:22:45,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:22:45,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:22:45" (1/1) ... [2019-09-16 17:22:45,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb2984e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:22:45, skipping insertion in model container [2019-09-16 17:22:45,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:22:45" (1/1) ... [2019-09-16 17:22:45,491 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:22:45,627 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:22:46,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:22:46,825 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:22:47,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:22:47,081 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:22:47,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:22:47 WrapperNode [2019-09-16 17:22:47,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:22:47,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:22:47,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:22:47,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:22:47,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:22:47" (1/1) ... [2019-09-16 17:22:47,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:22:47" (1/1) ... [2019-09-16 17:22:47,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:22:47" (1/1) ... [2019-09-16 17:22:47,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:22:47" (1/1) ... [2019-09-16 17:22:47,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:22:47" (1/1) ... [2019-09-16 17:22:47,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:22:47" (1/1) ... [2019-09-16 17:22:47,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:22:47" (1/1) ... [2019-09-16 17:22:47,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:22:47,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:22:47,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:22:47,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:22:47,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:22:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:22:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:22:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:22:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2019-09-16 17:22:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-09-16 17:22:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2019-09-16 17:22:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-16 17:22:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-16 17:22:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-16 17:22:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-16 17:22:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-16 17:22:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-16 17:22:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-16 17:22:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-16 17:22:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-09-16 17:22:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-09-16 17:22:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1051_init [2019-09-16 17:22:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1051_exit [2019-09-16 17:22:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure type_trans [2019-09-16 17:22:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rx [2019-09-16 17:22:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure build_header [2019-09-16 17:22:47,435 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_tx [2019-09-16 17:22:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ArcProto_1 [2019-09-16 17:22:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:22:47,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-09-16 17:22:47,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-09-16 17:22:47,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-09-16 17:22:47,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-09-16 17:22:47,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-09-16 17:22:47,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2019-09-16 17:22:47,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_14 [2019-09-16 17:22:47,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_15 [2019-09-16 17:22:47,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-09-16 17:22:47,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-09-16 17:22:47,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-09-16 17:22:47,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-09-16 17:22:47,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-09-16 17:22:47,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-16 17:22:47,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-16 17:22:47,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-16 17:22:47,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-16 17:22:47,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-09-16 17:22:47,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-16 17:22:47,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-09-16 17:22:47,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-09-16 17:22:47,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-09-16 17:22:47,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-09-16 17:22:47,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-09-16 17:22:47,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-16 17:22:47,445 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_unregister_proto [2019-09-16 17:22:47,446 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-16 17:22:47,446 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-09-16 17:22:47,446 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-09-16 17:22:47,446 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-09-16 17:22:47,447 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-16 17:22:47,447 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-16 17:22:47,447 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-16 17:22:47,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-16 17:22:47,450 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-16 17:22:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:22:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-16 17:22:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-16 17:22:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-16 17:22:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-16 17:22:47,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-09-16 17:22:47,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-09-16 17:22:47,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-09-16 17:22:47,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-09-16 17:22:47,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2019-09-16 17:22:47,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-09-16 17:22:47,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_14 [2019-09-16 17:22:47,455 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-09-16 17:22:47,455 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-09-16 17:22:47,455 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-09-16 17:22:47,457 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-09-16 17:22:47,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:22:47,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:22:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-09-16 17:22:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-09-16 17:22:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-09-16 17:22:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:22:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 17:22:47,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:22:47,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-09-16 17:22:47,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-16 17:22:47,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-16 17:22:47,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-16 17:22:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2019-09-16 17:22:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:22:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-16 17:22:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-16 17:22:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-16 17:22:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-16 17:22:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-16 17:22:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-16 17:22:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-16 17:22:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-16 17:22:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-09-16 17:22:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ArcProto_1 [2019-09-16 17:22:47,468 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-09-16 17:22:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_15 [2019-09-16 17:22:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_unregister_proto [2019-09-16 17:22:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure type_trans [2019-09-16 17:22:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure rx [2019-09-16 17:22:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure build_header [2019-09-16 17:22:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_tx [2019-09-16 17:22:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1051_init [2019-09-16 17:22:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:22:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:22:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1051_exit [2019-09-16 17:22:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:22:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-16 17:22:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2019-09-16 17:22:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-16 17:22:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-16 17:22:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:22:47,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-16 17:22:47,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:22:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-09-16 17:22:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-09-16 17:22:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-09-16 17:22:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-09-16 17:22:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-09-16 17:22:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-16 17:22:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-16 17:22:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-16 17:22:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-16 17:22:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-09-16 17:22:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-09-16 17:22:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-09-16 17:22:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-16 17:22:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:22:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-16 17:22:47,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:22:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:22:47,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-16 17:22:47,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:22:47,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-16 17:22:47,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-16 17:22:47,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-16 17:22:47,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-16 17:22:48,524 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-16 17:22:50,810 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:22:50,811 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-16 17:22:50,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:22:50 BoogieIcfgContainer [2019-09-16 17:22:50,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:22:50,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:22:50,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:22:50,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:22:50,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:22:45" (1/3) ... [2019-09-16 17:22:50,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f0f5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:22:50, skipping insertion in model container [2019-09-16 17:22:50,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:22:47" (2/3) ... [2019-09-16 17:22:50,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f0f5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:22:50, skipping insertion in model container [2019-09-16 17:22:50,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:22:50" (3/3) ... [2019-09-16 17:22:50,821 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2019-09-16 17:22:50,832 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:22:50,842 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:22:50,864 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:22:50,899 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:22:50,899 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:22:50,899 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:22:50,899 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:22:50,900 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:22:50,900 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:22:50,900 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:22:50,900 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:22:50,926 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states. [2019-09-16 17:22:50,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-16 17:22:50,942 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:22:50,944 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:22:50,947 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:22:50,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:22:50,954 INFO L82 PathProgramCache]: Analyzing trace with hash 997223558, now seen corresponding path program 1 times [2019-09-16 17:22:50,957 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:22:51,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:22:51,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:22:51,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:22:51,042 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:22:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:22:51,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:22:51,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:22:51,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:22:51,426 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:22:51,432 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:22:51,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:22:51,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:22:51,449 INFO L87 Difference]: Start difference. First operand 273 states. Second operand 3 states. [2019-09-16 17:22:51,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:22:51,596 INFO L93 Difference]: Finished difference Result 429 states and 541 transitions. [2019-09-16 17:22:51,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:22:51,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-09-16 17:22:51,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:22:51,622 INFO L225 Difference]: With dead ends: 429 [2019-09-16 17:22:51,622 INFO L226 Difference]: Without dead ends: 414 [2019-09-16 17:22:51,627 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:22:51,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2019-09-16 17:22:51,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2019-09-16 17:22:51,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-09-16 17:22:51,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 520 transitions. [2019-09-16 17:22:51,743 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 520 transitions. Word has length 54 [2019-09-16 17:22:51,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:22:51,743 INFO L475 AbstractCegarLoop]: Abstraction has 414 states and 520 transitions. [2019-09-16 17:22:51,744 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:22:51,744 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 520 transitions. [2019-09-16 17:22:51,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-16 17:22:51,748 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:22:51,748 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:22:51,751 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:22:51,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:22:51,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1153909464, now seen corresponding path program 1 times [2019-09-16 17:22:51,752 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:22:51,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:22:51,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:22:51,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:22:51,765 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:22:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:22:51,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:22:51,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:22:51,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:22:51,976 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:22:51,980 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:22:51,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:22:51,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:22:51,981 INFO L87 Difference]: Start difference. First operand 414 states and 520 transitions. Second operand 5 states. [2019-09-16 17:22:52,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:22:52,095 INFO L93 Difference]: Finished difference Result 413 states and 516 transitions. [2019-09-16 17:22:52,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:22:52,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2019-09-16 17:22:52,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:22:52,100 INFO L225 Difference]: With dead ends: 413 [2019-09-16 17:22:52,101 INFO L226 Difference]: Without dead ends: 413 [2019-09-16 17:22:52,102 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:22:52,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-09-16 17:22:52,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2019-09-16 17:22:52,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-09-16 17:22:52,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 516 transitions. [2019-09-16 17:22:52,137 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 516 transitions. Word has length 56 [2019-09-16 17:22:52,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:22:52,138 INFO L475 AbstractCegarLoop]: Abstraction has 413 states and 516 transitions. [2019-09-16 17:22:52,138 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:22:52,138 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 516 transitions. [2019-09-16 17:22:52,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-16 17:22:52,144 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:22:52,144 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:22:52,145 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:22:52,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:22:52,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1163764777, now seen corresponding path program 1 times [2019-09-16 17:22:52,145 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:22:52,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:22:52,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:22:52,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:22:52,160 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:22:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:22:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-16 17:22:52,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:22:52,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:22:52,381 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:22:52,381 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:22:52,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:22:52,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:22:52,382 INFO L87 Difference]: Start difference. First operand 413 states and 516 transitions. Second operand 6 states. [2019-09-16 17:22:52,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:22:52,928 INFO L93 Difference]: Finished difference Result 810 states and 1024 transitions. [2019-09-16 17:22:52,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:22:52,928 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2019-09-16 17:22:52,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:22:52,942 INFO L225 Difference]: With dead ends: 810 [2019-09-16 17:22:52,942 INFO L226 Difference]: Without dead ends: 794 [2019-09-16 17:22:52,943 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:22:52,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2019-09-16 17:22:52,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2019-09-16 17:22:52,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 794 states. [2019-09-16 17:22:52,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1008 transitions. [2019-09-16 17:22:52,997 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1008 transitions. Word has length 96 [2019-09-16 17:22:52,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:22:52,997 INFO L475 AbstractCegarLoop]: Abstraction has 794 states and 1008 transitions. [2019-09-16 17:22:52,998 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:22:52,998 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1008 transitions. [2019-09-16 17:22:53,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-09-16 17:22:53,009 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:22:53,009 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2019-09-16 17:22:53,013 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:22:53,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:22:53,013 INFO L82 PathProgramCache]: Analyzing trace with hash -268364921, now seen corresponding path program 1 times [2019-09-16 17:22:53,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:22:53,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:22:53,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:22:53,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:22:53,020 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:22:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:22:53,319 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-09-16 17:22:53,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:22:53,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:22:53,320 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:22:53,322 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:22:53,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:22:53,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:22:53,323 INFO L87 Difference]: Start difference. First operand 794 states and 1008 transitions. Second operand 4 states. [2019-09-16 17:22:53,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:22:53,368 INFO L93 Difference]: Finished difference Result 797 states and 1011 transitions. [2019-09-16 17:22:53,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:22:53,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 147 [2019-09-16 17:22:53,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:22:53,375 INFO L225 Difference]: With dead ends: 797 [2019-09-16 17:22:53,376 INFO L226 Difference]: Without dead ends: 795 [2019-09-16 17:22:53,376 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:22:53,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2019-09-16 17:22:53,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 795. [2019-09-16 17:22:53,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2019-09-16 17:22:53,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1009 transitions. [2019-09-16 17:22:53,420 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1009 transitions. Word has length 147 [2019-09-16 17:22:53,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:22:53,420 INFO L475 AbstractCegarLoop]: Abstraction has 795 states and 1009 transitions. [2019-09-16 17:22:53,421 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:22:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1009 transitions. [2019-09-16 17:22:53,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-09-16 17:22:53,428 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:22:53,428 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2019-09-16 17:22:53,428 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:22:53,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:22:53,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1500119329, now seen corresponding path program 1 times [2019-09-16 17:22:53,429 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:22:53,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:22:53,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:22:53,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:22:53,437 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:22:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:22:53,774 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2019-09-16 17:22:53,836 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-09-16 17:22:53,837 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:22:53,837 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:22:53,838 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2019-09-16 17:22:53,841 INFO L207 CegarAbsIntRunner]: [8], [11], [15], [16], [45], [47], [49], [50], [51], [53], [56], [58], [61], [64], [77], [90], [93], [96], [98], [117], [120], [123], [126], [129], [131], [135], [138], [141], [143], [146], [155], [190], [191], [195], [204], [209], [221], [225], [230], [231], [237], [238], [278], [279], [361], [362], [368], [370], [371], [384], [386], [390], [392], [393], [414], [416], [419], [424], [427], [432], [434], [460], [508], [510], [511], [512], [523], [524], [566], [570], [572], [573], [578], [579], [582], [584], [589], [605], [610], [611], [612], [613], [614], [615], [616], [617], [618], [619], [624], [625], [628], [629], [630], [631], [632], [633], [638], [642], [643], [658], [659], [668], [669], [670], [671], [674], [675], [676], [677], [698], [699], [708], [709], [710], [714], [715], [716], [718], [719] [2019-09-16 17:22:53,894 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:22:53,894 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:22:53,983 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:22:53,985 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 55 root evaluator evaluations with a maximum evaluation depth of 0. Performed 55 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 94 variables. [2019-09-16 17:22:53,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:22:53,991 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:22:54,094 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:22:54,094 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:22:54,104 INFO L420 sIntCurrentIteration]: We unified 147 AI predicates to 147 [2019-09-16 17:22:54,105 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:22:54,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:22:54,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-16 17:22:54,106 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:22:54,108 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:22:54,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:22:54,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:22:54,110 INFO L87 Difference]: Start difference. First operand 795 states and 1009 transitions. Second operand 2 states. [2019-09-16 17:22:54,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:22:54,110 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:22:54,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:22:54,111 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 148 [2019-09-16 17:22:54,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:22:54,111 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:22:54,111 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:22:54,111 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:22:54,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:22:54,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:22:54,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:22:54,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:22:54,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 148 [2019-09-16 17:22:54,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:22:54,113 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:22:54,113 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:22:54,113 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:22:54,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:22:54,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:22:54 BoogieIcfgContainer [2019-09-16 17:22:54,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:22:54,126 INFO L168 Benchmark]: Toolchain (without parser) took 8650.36 ms. Allocated memory was 131.1 MB in the beginning and 366.5 MB in the end (delta: 235.4 MB). Free memory was 79.6 MB in the beginning and 145.0 MB in the end (delta: -65.5 MB). Peak memory consumption was 169.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:22:54,127 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 131.1 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:22:54,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1607.07 ms. Allocated memory was 131.1 MB in the beginning and 215.5 MB in the end (delta: 84.4 MB). Free memory was 79.4 MB in the beginning and 116.8 MB in the end (delta: -37.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:22:54,130 INFO L168 Benchmark]: Boogie Preprocessor took 224.26 ms. Allocated memory is still 215.5 MB. Free memory was 116.8 MB in the beginning and 109.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:22:54,132 INFO L168 Benchmark]: RCFGBuilder took 3505.37 ms. Allocated memory was 215.5 MB in the beginning and 275.8 MB in the end (delta: 60.3 MB). Free memory was 109.7 MB in the beginning and 211.7 MB in the end (delta: -102.0 MB). Peak memory consumption was 103.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:22:54,133 INFO L168 Benchmark]: TraceAbstraction took 3309.05 ms. Allocated memory was 275.8 MB in the beginning and 366.5 MB in the end (delta: 90.7 MB). Free memory was 209.3 MB in the beginning and 145.0 MB in the end (delta: 64.3 MB). Peak memory consumption was 155.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:22:54,144 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 131.1 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1607.07 ms. Allocated memory was 131.1 MB in the beginning and 215.5 MB in the end (delta: 84.4 MB). Free memory was 79.4 MB in the beginning and 116.8 MB in the end (delta: -37.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 224.26 ms. Allocated memory is still 215.5 MB. Free memory was 116.8 MB in the beginning and 109.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3505.37 ms. Allocated memory was 215.5 MB in the beginning and 275.8 MB in the end (delta: 60.3 MB). Free memory was 109.7 MB in the beginning and 211.7 MB in the end (delta: -102.0 MB). Peak memory consumption was 103.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3309.05 ms. Allocated memory was 275.8 MB in the beginning and 366.5 MB in the end (delta: 90.7 MB). Free memory was 209.3 MB in the beginning and 145.0 MB in the end (delta: 64.3 MB). Peak memory consumption was 155.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5327]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 58 procedures, 349 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1323 SDtfs, 783 SDslu, 2824 SDs, 0 SdLazy, 174 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=795occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.7891156462585034 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 501 NumberOfCodeBlocks, 501 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 496 ConstructedInterpolants, 0 QuantifiedInterpolants, 81697 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 138/159 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...