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-f4eb214f-m [2019-10-13 18:30:42,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:30:42,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:30:42,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:30:42,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:30:42,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:30:42,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:30:42,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:30:42,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:30:42,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:30:42,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:30:42,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:30:42,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:30:42,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:30:42,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:30:42,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:30:42,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:30:42,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:30:42,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:30:42,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:30:42,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:30:42,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:30:42,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:30:42,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:30:42,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:30:42,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:30:42,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:30:42,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:30:42,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:30:42,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:30:42,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:30:42,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:30:42,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:30:42,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:30:42,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:30:42,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:30:42,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:30:42,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:30:42,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:30:42,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:30:42,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:30:42,177 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 [2019-10-13 18:30:42,198 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:30:42,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:30:42,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:30:42,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:30:42,200 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:30:42,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:30:42,201 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:30:42,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:30:42,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:30:42,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:30:42,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:30:42,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:30:42,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:30:42,203 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:30:42,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:30:42,204 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:30:42,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:30:42,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:30:42,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:30:42,204 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:30:42,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:30:42,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:30:42,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:30:42,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:30:42,206 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:30:42,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:30:42,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:30:42,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:30:42,206 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:30:42,480 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:30:42,493 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:30:42,496 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:30:42,498 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:30:42,498 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:30:42,499 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2019-10-13 18:30:42,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f56521ce/3004f1cb5efa4b0a8f135b2321c14e28/FLAG22ad82a0b [2019-10-13 18:30:43,395 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:30:43,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1051.ko-entry_point.cil.out.i [2019-10-13 18:30:43,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f56521ce/3004f1cb5efa4b0a8f135b2321c14e28/FLAG22ad82a0b [2019-10-13 18:30:43,465 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f56521ce/3004f1cb5efa4b0a8f135b2321c14e28 [2019-10-13 18:30:43,475 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:30:43,477 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:30:43,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:30:43,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:30:43,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:30:43,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:30:43" (1/1) ... [2019-10-13 18:30:43,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cee1a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:30:43, skipping insertion in model container [2019-10-13 18:30:43,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:30:43" (1/1) ... [2019-10-13 18:30:43,492 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:30:43,589 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:30:44,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:30:44,656 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:30:44,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:30:44,889 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:30:44,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:30:44 WrapperNode [2019-10-13 18:30:44,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:30:44,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:30:44,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:30:44,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:30:44,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:30:44" (1/1) ... [2019-10-13 18:30:44,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:30:44" (1/1) ... [2019-10-13 18:30:44,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:30:44" (1/1) ... [2019-10-13 18:30:44,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:30:44" (1/1) ... [2019-10-13 18:30:44,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:30:44" (1/1) ... [2019-10-13 18:30:44,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:30:44" (1/1) ... [2019-10-13 18:30:44,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:30:44" (1/1) ... [2019-10-13 18:30:45,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:30:45,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:30:45,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:30:45,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:30:45,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:30:44" (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 [2019-10-13 18:30:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:30:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:30:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-13 18:30:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-13 18:30:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_zalloc [2019-10-13 18:30:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 18:30:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 18:30:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 18:30:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 18:30:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 18:30:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 18:30:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 18:30:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 18:30:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 18:30:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-13 18:30:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1051_init [2019-10-13 18:30:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1051_exit [2019-10-13 18:30:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure type_trans [2019-10-13 18:30:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure rx [2019-10-13 18:30:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure build_header [2019-10-13 18:30:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_tx [2019-10-13 18:30:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ArcProto_1 [2019-10-13 18:30:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:30:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-13 18:30:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-13 18:30:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-13 18:30:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-13 18:30:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-13 18:30:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_13 [2019-10-13 18:30:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_14 [2019-10-13 18:30:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_15 [2019-10-13 18:30:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-13 18:30:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-13 18:30:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-13 18:30:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-13 18:30:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-13 18:30:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 18:30:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 18:30:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 18:30:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 18:30:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-13 18:30:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 18:30:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-13 18:30:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-13 18:30:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-13 18:30:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-13 18:30:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-13 18:30:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 18:30:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_unregister_proto [2019-10-13 18:30:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 18:30:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-13 18:30:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-13 18:30:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-13 18:30:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 18:30:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 18:30:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 18:30:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 18:30:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 18:30:45,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:30:45,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 18:30:45,106 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 18:30:45,106 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 18:30:45,106 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 18:30:45,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-13 18:30:45,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-13 18:30:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-13 18:30:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-13 18:30:45,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_13 [2019-10-13 18:30:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-13 18:30:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_14 [2019-10-13 18:30:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-13 18:30:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-13 18:30:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-13 18:30:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-13 18:30:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:30:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 18:30:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-13 18:30:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-13 18:30:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-13 18:30:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 18:30:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 18:30:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:30:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-10-13 18:30:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 18:30:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 18:30:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 18:30:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_zalloc [2019-10-13 18:30:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 18:30:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 18:30:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 18:30:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 18:30:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 18:30:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 18:30:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 18:30:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 18:30:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 18:30:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 18:30:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ArcProto_1 [2019-10-13 18:30:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-13 18:30:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_15 [2019-10-13 18:30:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_unregister_proto [2019-10-13 18:30:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure type_trans [2019-10-13 18:30:45,160 INFO L130 BoogieDeclarations]: Found specification of procedure rx [2019-10-13 18:30:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure build_header [2019-10-13 18:30:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_tx [2019-10-13 18:30:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1051_init [2019-10-13 18:30:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:30:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:30:45,161 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1051_exit [2019-10-13 18:30:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 18:30:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 18:30:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-13 18:30:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 18:30:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 18:30:45,162 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:30:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 18:30:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:30:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-13 18:30:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-13 18:30:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-13 18:30:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-13 18:30:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-13 18:30:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 18:30:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 18:30:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 18:30:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 18:30:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-13 18:30:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-13 18:30:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-13 18:30:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 18:30:45,166 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:30:45,166 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 18:30:45,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:30:45,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 18:30:45,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 18:30:45,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:30:45,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 18:30:45,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 18:30:45,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 18:30:45,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 18:30:46,019 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 18:30:48,094 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:30:48,094 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 18:30:48,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:30:48 BoogieIcfgContainer [2019-10-13 18:30:48,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:30:48,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:30:48,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:30:48,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:30:48,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:30:43" (1/3) ... [2019-10-13 18:30:48,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f04fa08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:30:48, skipping insertion in model container [2019-10-13 18:30:48,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:30:44" (2/3) ... [2019-10-13 18:30:48,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f04fa08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:30:48, skipping insertion in model container [2019-10-13 18:30:48,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:30:48" (3/3) ... [2019-10-13 18:30:48,109 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 [2019-10-13 18:30:48,118 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:30:48,130 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:30:48,141 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:30:48,175 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:30:48,176 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:30:48,176 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:30:48,176 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:30:48,176 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:30:48,176 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:30:48,176 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:30:48,176 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:30:48,208 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2019-10-13 18:30:48,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-13 18:30:48,221 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:30:48,222 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] [2019-10-13 18:30:48,224 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:30:48,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:30:48,228 INFO L82 PathProgramCache]: Analyzing trace with hash 557541643, now seen corresponding path program 1 times [2019-10-13 18:30:48,236 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:30:48,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588526586] [2019-10-13 18:30:48,236 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:30:48,237 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:30:48,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:30:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:48,884 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-10-13 18:30:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:49,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:30:49,038 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588526586] [2019-10-13 18:30:49,039 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:30:49,039 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 18:30:49,039 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610679212] [2019-10-13 18:30:49,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 18:30:49,044 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:30:49,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 18:30:49,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 18:30:49,061 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 8 states. [2019-10-13 18:30:49,209 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-10-13 18:30:49,680 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-10-13 18:30:52,596 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2019-10-13 18:30:58,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:30:58,463 INFO L93 Difference]: Finished difference Result 760 states and 1009 transitions. [2019-10-13 18:30:58,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 18:30:58,467 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2019-10-13 18:30:58,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:30:58,506 INFO L225 Difference]: With dead ends: 760 [2019-10-13 18:30:58,507 INFO L226 Difference]: Without dead ends: 519 [2019-10-13 18:30:58,516 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2019-10-13 18:30:58,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2019-10-13 18:30:58,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 412. [2019-10-13 18:30:58,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2019-10-13 18:30:58,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 516 transitions. [2019-10-13 18:30:58,642 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 516 transitions. Word has length 53 [2019-10-13 18:30:58,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:30:58,643 INFO L462 AbstractCegarLoop]: Abstraction has 412 states and 516 transitions. [2019-10-13 18:30:58,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 18:30:58,643 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 516 transitions. [2019-10-13 18:30:58,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-13 18:30:58,647 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:30:58,647 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] [2019-10-13 18:30:58,647 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:30:58,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:30:58,648 INFO L82 PathProgramCache]: Analyzing trace with hash -519276073, now seen corresponding path program 1 times [2019-10-13 18:30:58,648 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:30:58,648 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798515642] [2019-10-13 18:30:58,649 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:30:58,649 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:30:58,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:30:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:58,846 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-10-13 18:30:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:30:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 18:30:59,042 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798515642] [2019-10-13 18:30:59,042 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:30:59,042 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 18:30:59,043 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037015951] [2019-10-13 18:30:59,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 18:30:59,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:30:59,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 18:30:59,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 18:30:59,047 INFO L87 Difference]: Start difference. First operand 412 states and 516 transitions. Second operand 11 states. [2019-10-13 18:30:59,180 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-10-13 18:30:59,399 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-10-13 18:30:59,576 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2019-10-13 18:31:09,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:31:09,610 INFO L93 Difference]: Finished difference Result 909 states and 1151 transitions. [2019-10-13 18:31:09,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 18:31:09,611 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 55 [2019-10-13 18:31:09,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:31:09,616 INFO L225 Difference]: With dead ends: 909 [2019-10-13 18:31:09,616 INFO L226 Difference]: Without dead ends: 518 [2019-10-13 18:31:09,619 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2019-10-13 18:31:09,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2019-10-13 18:31:09,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 411. [2019-10-13 18:31:09,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2019-10-13 18:31:09,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 512 transitions. [2019-10-13 18:31:09,696 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 512 transitions. Word has length 55 [2019-10-13 18:31:09,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:31:09,696 INFO L462 AbstractCegarLoop]: Abstraction has 411 states and 512 transitions. [2019-10-13 18:31:09,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 18:31:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 512 transitions. [2019-10-13 18:31:09,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-13 18:31:09,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:31:09,702 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] [2019-10-13 18:31:09,702 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:31:09,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:31:09,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1601516934, now seen corresponding path program 1 times [2019-10-13 18:31:09,703 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:31:09,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310783628] [2019-10-13 18:31:09,703 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:09,703 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:09,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:31:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:10,165 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-13 18:31:10,165 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310783628] [2019-10-13 18:31:10,166 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:31:10,166 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 18:31:10,166 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351130696] [2019-10-13 18:31:10,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 18:31:10,167 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:31:10,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 18:31:10,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2019-10-13 18:31:10,168 INFO L87 Difference]: Start difference. First operand 411 states and 512 transitions. Second operand 13 states. [2019-10-13 18:31:10,288 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-10-13 18:31:10,497 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-10-13 18:31:10,720 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2019-10-13 18:31:24,451 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-10-13 18:31:25,339 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2019-10-13 18:31:25,489 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-10-13 18:31:25,629 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-10-13 18:31:25,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:31:25,797 INFO L93 Difference]: Finished difference Result 1311 states and 1684 transitions. [2019-10-13 18:31:25,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 18:31:25,797 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 93 [2019-10-13 18:31:25,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:31:25,804 INFO L225 Difference]: With dead ends: 1311 [2019-10-13 18:31:25,804 INFO L226 Difference]: Without dead ends: 905 [2019-10-13 18:31:25,806 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2019-10-13 18:31:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2019-10-13 18:31:25,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 846. [2019-10-13 18:31:25,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2019-10-13 18:31:25,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1078 transitions. [2019-10-13 18:31:25,885 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1078 transitions. Word has length 93 [2019-10-13 18:31:25,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:31:25,886 INFO L462 AbstractCegarLoop]: Abstraction has 846 states and 1078 transitions. [2019-10-13 18:31:25,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 18:31:25,886 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1078 transitions. [2019-10-13 18:31:25,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 18:31:25,892 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:31:25,893 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 18:31:25,893 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:31:25,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:31:25,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1113706041, now seen corresponding path program 1 times [2019-10-13 18:31:25,894 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:31:25,894 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266804250] [2019-10-13 18:31:25,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:25,894 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:25,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:31:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,167 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-10-13 18:31:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:26,596 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-13 18:31:26,596 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266804250] [2019-10-13 18:31:26,596 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:31:26,597 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 18:31:26,597 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52700641] [2019-10-13 18:31:26,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 18:31:26,599 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:31:26,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 18:31:26,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-10-13 18:31:26,600 INFO L87 Difference]: Start difference. First operand 846 states and 1078 transitions. Second operand 13 states. [2019-10-13 18:31:26,741 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 118