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/default/automizer/svcomp-Reach-32bit-Automizer_Default.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 0.1.24-13a467a-m [2019-10-14 22:29:38,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 22:29:38,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 22:29:38,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 22:29:38,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 22:29:38,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 22:29:38,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 22:29:38,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 22:29:38,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 22:29:38,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 22:29:38,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 22:29:38,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 22:29:38,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 22:29:38,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 22:29:38,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 22:29:38,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 22:29:38,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 22:29:38,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 22:29:38,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 22:29:38,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 22:29:38,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 22:29:38,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 22:29:38,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 22:29:38,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 22:29:38,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 22:29:38,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 22:29:38,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 22:29:38,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 22:29:38,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 22:29:38,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 22:29:38,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 22:29:38,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 22:29:38,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 22:29:38,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 22:29:38,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 22:29:38,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 22:29:38,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 22:29:38,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 22:29:38,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 22:29:38,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 22:29:38,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 22:29:38,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 22:29:38,397 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 22:29:38,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 22:29:38,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 22:29:38,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 22:29:38,399 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 22:29:38,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 22:29:38,400 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 22:29:38,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 22:29:38,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 22:29:38,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 22:29:38,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 22:29:38,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 22:29:38,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 22:29:38,401 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 22:29:38,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 22:29:38,402 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 22:29:38,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 22:29:38,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 22:29:38,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 22:29:38,403 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 22:29:38,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 22:29:38,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 22:29:38,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 22:29:38,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 22:29:38,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 22:29:38,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 22:29:38,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 22:29:38,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 22:29:38,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 22:29:38,707 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 22:29:38,721 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 22:29:38,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 22:29:38,726 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 22:29:38,726 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 22:29:38,727 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2019-10-14 22:29:38,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2917e7ef/755a3148ab864979b063567463a53872/FLAG639d8e85d [2019-10-14 22:29:39,547 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 22:29:39,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2019-10-14 22:29:39,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2917e7ef/755a3148ab864979b063567463a53872/FLAG639d8e85d [2019-10-14 22:29:39,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2917e7ef/755a3148ab864979b063567463a53872 [2019-10-14 22:29:39,640 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 22:29:39,642 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 22:29:39,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 22:29:39,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 22:29:39,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 22:29:39,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:29:39" (1/1) ... [2019-10-14 22:29:39,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b16b92d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:39, skipping insertion in model container [2019-10-14 22:29:39,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:29:39" (1/1) ... [2019-10-14 22:29:39,664 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 22:29:39,780 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 22:29:40,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:29:40,988 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 22:29:41,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:29:41,319 INFO L192 MainTranslator]: Completed translation [2019-10-14 22:29:41,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41 WrapperNode [2019-10-14 22:29:41,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 22:29:41,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 22:29:41,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 22:29:41,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 22:29:41,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (1/1) ... [2019-10-14 22:29:41,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 22:29:41,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 22:29:41,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 22:29:41,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 22:29:41,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (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 [2019-10-14 22:29:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 22:29:41,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 22:29:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-14 22:29:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-14 22:29:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2019-10-14 22:29:41,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 22:29:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-14 22:29:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-14 22:29:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-14 22:29:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-14 22:29:41,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-14 22:29:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-14 22:29:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-14 22:29:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-14 22:29:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-14 22:29:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1051_init [2019-10-14 22:29:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1051_exit [2019-10-14 22:29:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure type_trans [2019-10-14 22:29:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure rx [2019-10-14 22:29:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure build_header [2019-10-14 22:29:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_tx [2019-10-14 22:29:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ArcProto_1 [2019-10-14 22:29:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 22:29:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-14 22:29:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-14 22:29:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-14 22:29:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-14 22:29:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-14 22:29:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2019-10-14 22:29:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_14 [2019-10-14 22:29:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_15 [2019-10-14 22:29:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-14 22:29:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-14 22:29:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-14 22:29:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-14 22:29:41,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-14 22:29:41,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-14 22:29:41,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-14 22:29:41,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-14 22:29:41,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-14 22:29:41,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-14 22:29:41,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 22:29:41,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-14 22:29:41,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-14 22:29:41,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-14 22:29:41,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-14 22:29:41,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-14 22:29:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 22:29:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_unregister_proto [2019-10-14 22:29:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-14 22:29:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-14 22:29:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-14 22:29:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-14 22:29:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 22:29:41,704 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 22:29:41,705 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-14 22:29:41,705 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-14 22:29:41,705 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-14 22:29:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 22:29:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-14 22:29:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-14 22:29:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-14 22:29:41,705 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-14 22:29:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-14 22:29:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-14 22:29:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-14 22:29:41,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-14 22:29:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2019-10-14 22:29:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-14 22:29:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_14 [2019-10-14 22:29:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-14 22:29:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-14 22:29:41,707 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-14 22:29:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-14 22:29:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 22:29:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 22:29:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-14 22:29:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-14 22:29:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-14 22:29:41,708 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 22:29:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 22:29:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 22:29:41,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-10-14 22:29:41,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 22:29:41,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 22:29:41,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 22:29:41,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2019-10-14 22:29:41,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 22:29:41,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-14 22:29:41,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 22:29:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-14 22:29:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-14 22:29:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-14 22:29:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-14 22:29:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-14 22:29:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-14 22:29:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-14 22:29:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ArcProto_1 [2019-10-14 22:29:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-14 22:29:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_15 [2019-10-14 22:29:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_unregister_proto [2019-10-14 22:29:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure type_trans [2019-10-14 22:29:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure rx [2019-10-14 22:29:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure build_header [2019-10-14 22:29:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_tx [2019-10-14 22:29:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1051_init [2019-10-14 22:29:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 22:29:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 22:29:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1051_exit [2019-10-14 22:29:41,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 22:29:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-14 22:29:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-14 22:29:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 22:29:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 22:29:41,717 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 22:29:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-14 22:29:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 22:29:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-14 22:29:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-14 22:29:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-14 22:29:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-14 22:29:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-14 22:29:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-14 22:29:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-14 22:29:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-14 22:29:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-14 22:29:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-14 22:29:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-14 22:29:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-14 22:29:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 22:29:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 22:29:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 22:29:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 22:29:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 22:29:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 22:29:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 22:29:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-14 22:29:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-14 22:29:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-14 22:29:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-14 22:29:42,486 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-14 22:29:45,058 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 22:29:45,058 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-14 22:29:45,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:29:45 BoogieIcfgContainer [2019-10-14 22:29:45,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 22:29:45,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 22:29:45,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 22:29:45,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 22:29:45,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:29:39" (1/3) ... [2019-10-14 22:29:45,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9cac95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:29:45, skipping insertion in model container [2019-10-14 22:29:45,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:29:41" (2/3) ... [2019-10-14 22:29:45,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9cac95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:29:45, skipping insertion in model container [2019-10-14 22:29:45,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:29:45" (3/3) ... [2019-10-14 22:29:45,068 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 [2019-10-14 22:29:45,079 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 22:29:45,093 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 22:29:45,105 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 22:29:45,142 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 22:29:45,142 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 22:29:45,142 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 22:29:45,142 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 22:29:45,142 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 22:29:45,142 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 22:29:45,143 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 22:29:45,143 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 22:29:45,175 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2019-10-14 22:29:45,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-14 22:29:45,185 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:29:45,186 INFO L380 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] [2019-10-14 22:29:45,188 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:29:45,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:29:45,194 INFO L82 PathProgramCache]: Analyzing trace with hash 557541643, now seen corresponding path program 1 times [2019-10-14 22:29:45,201 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:29:45,201 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733835387] [2019-10-14 22:29:45,202 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:29:45,202 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:29:45,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:29:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:45,837 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-10-14 22:29:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:29:46,076 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733835387] [2019-10-14 22:29:46,077 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:29:46,077 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 22:29:46,078 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651927083] [2019-10-14 22:29:46,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 22:29:46,083 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:29:46,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 22:29:46,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-14 22:29:46,101 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 8 states. [2019-10-14 22:29:46,293 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-10-14 22:29:46,904 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-10-14 22:29:50,101 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2019-10-14 22:29:55,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:29:55,696 INFO L93 Difference]: Finished difference Result 760 states and 1009 transitions. [2019-10-14 22:29:55,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-14 22:29:55,700 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2019-10-14 22:29:55,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:29:55,744 INFO L225 Difference]: With dead ends: 760 [2019-10-14 22:29:55,744 INFO L226 Difference]: Without dead ends: 519 [2019-10-14 22:29:55,756 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-14 22:29:55,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2019-10-14 22:29:55,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 412. [2019-10-14 22:29:55,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2019-10-14 22:29:55,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 516 transitions. [2019-10-14 22:29:55,924 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 516 transitions. Word has length 53 [2019-10-14 22:29:55,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:29:55,924 INFO L462 AbstractCegarLoop]: Abstraction has 412 states and 516 transitions. [2019-10-14 22:29:55,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 22:29:55,925 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 516 transitions. [2019-10-14 22:29:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-14 22:29:55,929 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:29:55,929 INFO L380 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] [2019-10-14 22:29:55,929 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:29:55,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:29:55,930 INFO L82 PathProgramCache]: Analyzing trace with hash -519276073, now seen corresponding path program 1 times [2019-10-14 22:29:55,930 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:29:55,930 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4069721] [2019-10-14 22:29:55,930 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:29:55,931 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:29:55,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:29:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:56,232 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-10-14 22:29:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:29:56,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 22:29:56,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4069721] [2019-10-14 22:29:56,505 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:29:56,505 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 22:29:56,506 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952423586] [2019-10-14 22:29:56,509 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 22:29:56,510 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:29:56,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 22:29:56,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-14 22:29:56,511 INFO L87 Difference]: Start difference. First operand 412 states and 516 transitions. Second operand 11 states. [2019-10-14 22:29:56,698 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-10-14 22:29:56,954 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-10-14 22:29:57,172 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2019-10-14 22:30:09,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:30:09,061 INFO L93 Difference]: Finished difference Result 909 states and 1151 transitions. [2019-10-14 22:30:09,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 22:30:09,062 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 55 [2019-10-14 22:30:09,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:30:09,067 INFO L225 Difference]: With dead ends: 909 [2019-10-14 22:30:09,068 INFO L226 Difference]: Without dead ends: 518 [2019-10-14 22:30:09,071 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2019-10-14 22:30:09,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2019-10-14 22:30:09,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 411. [2019-10-14 22:30:09,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2019-10-14 22:30:09,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 512 transitions. [2019-10-14 22:30:09,153 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 512 transitions. Word has length 55 [2019-10-14 22:30:09,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:30:09,154 INFO L462 AbstractCegarLoop]: Abstraction has 411 states and 512 transitions. [2019-10-14 22:30:09,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 22:30:09,159 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 512 transitions. [2019-10-14 22:30:09,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-14 22:30:09,172 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:30:09,172 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 22:30:09,173 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:30:09,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:30:09,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1601516934, now seen corresponding path program 1 times [2019-10-14 22:30:09,174 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:30:09,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940791943] [2019-10-14 22:30:09,174 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:30:09,174 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:30:09,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:30:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,485 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-10-14 22:30:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:30:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-14 22:30:09,747 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940791943] [2019-10-14 22:30:09,748 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:30:09,748 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 22:30:09,748 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614044492] [2019-10-14 22:30:09,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 22:30:09,752 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:30:09,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 22:30:09,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2019-10-14 22:30:09,755 INFO L87 Difference]: Start difference. First operand 411 states and 512 transitions. Second operand 13 states. [2019-10-14 22:30:10,021 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-10-14 22:30:10,417 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-10-14 22:30:10,629 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 111