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_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 18:31:05,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:31:05,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:31:05,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:31:05,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:31:05,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:31:05,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:31:05,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:31:05,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:31:05,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:31:05,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:31:05,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:31:05,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:31:05,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:31:05,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:31:05,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:31:05,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:31:05,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:31:05,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:31:05,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:31:05,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:31:05,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:31:05,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:31:05,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:31:05,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:31:05,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:31:05,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:31:05,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:31:05,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:31:05,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:31:05,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:31:05,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:31:05,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:31:05,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:31:05,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:31:05,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:31:05,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:31:05,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:31:05,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:31:05,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:31:05,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:31:05,285 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 18:31:05,301 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:31:05,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:31:05,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:31:05,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:31:05,304 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:31:05,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:31:05,305 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:31:05,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:31:05,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:31:05,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:31:05,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:31:05,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:31:05,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:31:05,307 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:31:05,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:31:05,307 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:31:05,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:31:05,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:31:05,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:31:05,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:31:05,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:31:05,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:31:05,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:31:05,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:31:05,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:31:05,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:31:05,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:31:05,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:31:05,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:31:05,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:31:05,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:31:05,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:31:05,589 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:31:05,590 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:31:05,590 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i [2019-10-13 18:31:05,663 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/194f20ff5/6fe9be7f05694b07ba34c03eb53f7411/FLAGa9cc1a782 [2019-10-13 18:31:06,457 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:31:06,458 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i [2019-10-13 18:31:06,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/194f20ff5/6fe9be7f05694b07ba34c03eb53f7411/FLAGa9cc1a782 [2019-10-13 18:31:06,528 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/194f20ff5/6fe9be7f05694b07ba34c03eb53f7411 [2019-10-13 18:31:06,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:31:06,540 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:31:06,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:31:06,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:31:06,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:31:06,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:31:06" (1/1) ... [2019-10-13 18:31:06,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e149e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:06, skipping insertion in model container [2019-10-13 18:31:06,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:31:06" (1/1) ... [2019-10-13 18:31:06,555 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:31:06,671 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:31:07,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:31:07,904 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:31:08,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:31:08,381 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:31:08,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:08 WrapperNode [2019-10-13 18:31:08,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:31:08,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:31:08,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:31:08,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:31:08,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:08" (1/1) ... [2019-10-13 18:31:08,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:08" (1/1) ... [2019-10-13 18:31:08,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:08" (1/1) ... [2019-10-13 18:31:08,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:08" (1/1) ... [2019-10-13 18:31:08,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:08" (1/1) ... [2019-10-13 18:31:08,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:08" (1/1) ... [2019-10-13 18:31:08,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:08" (1/1) ... [2019-10-13 18:31:08,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:31:08,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:31:08,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:31:08,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:31:08,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:08" (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 18:31:08,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:31:08,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:31:08,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-13 18:31:08,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-13 18:31:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-13 18:31:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 18:31:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 18:31:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 18:31:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 18:31:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 18:31:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 18:31:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 18:31:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 18:31:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 18:31:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-13 18:31:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2019-10-13 18:31:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1201_init [2019-10-13 18:31:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_rfc1201_exit [2019-10-13 18:31:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure type_trans [2019-10-13 18:31:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure rx [2019-10-13 18:31:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure build_header [2019-10-13 18:31:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure load_pkt [2019-10-13 18:31:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_tx [2019-10-13 18:31:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure continue_tx [2019-10-13 18:31:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_ArcProto_1 [2019-10-13 18:31:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:31:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2019-10-13 18:31:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2019-10-13 18:31:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2019-10-13 18:31:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2019-10-13 18:31:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2019-10-13 18:31:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2019-10-13 18:31:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2019-10-13 18:31:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_15 [2019-10-13 18:31:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2019-10-13 18:31:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2019-10-13 18:31:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2019-10-13 18:31:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2019-10-13 18:31:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2019-10-13 18:31:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 18:31:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-13 18:31:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-13 18:31:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-13 18:31:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2019-10-13 18:31:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 18:31:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2019-10-13 18:31:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2019-10-13 18:31:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2019-10-13 18:31:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2019-10-13 18:31:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2019-10-13 18:31:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 18:31:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2019-10-13 18:31:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure arcnet_unregister_proto [2019-10-13 18:31:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 18:31:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-13 18:31:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-13 18:31:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-13 18:31:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 18:31:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 18:31:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 18:31:08,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 18:31:08,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 18:31:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:31:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 18:31:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-13 18:31:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 18:31:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 18:31:08,744 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 18:31:08,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2019-10-13 18:31:08,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2019-10-13 18:31:08,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2019-10-13 18:31:08,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2019-10-13 18:31:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2019-10-13 18:31:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2019-10-13 18:31:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-13 18:31:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-13 18:31:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-13 18:31:08,745 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-13 18:31:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:31:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 18:31:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2019-10-13 18:31:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2019-10-13 18:31:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2019-10-13 18:31:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 18:31:08,746 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 18:31:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:31:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-10-13 18:31:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 18:31:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 18:31:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 18:31:08,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 18:31:08,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 18:31:08,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 18:31:08,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 18:31:08,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 18:31:08,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 18:31:08,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 18:31:08,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 18:31:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 18:31:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 18:31:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_ArcProto_1 [2019-10-13 18:31:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-13 18:31:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2019-10-13 18:31:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2019-10-13 18:31:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2019-10-13 18:31:08,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_15 [2019-10-13 18:31:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_unregister_proto [2019-10-13 18:31:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure type_trans [2019-10-13 18:31:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure rx [2019-10-13 18:31:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure build_header [2019-10-13 18:31:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_tx [2019-10-13 18:31:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure continue_tx [2019-10-13 18:31:08,750 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1201_init [2019-10-13 18:31:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:31:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:31:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure arcnet_rfc1201_exit [2019-10-13 18:31:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 18:31:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~TO~VOID [2019-10-13 18:31:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 18:31:08,751 INFO L130 BoogieDeclarations]: Found specification of procedure load_pkt [2019-10-13 18:31:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:31:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 18:31:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 18:31:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:31:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 18:31:08,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2019-10-13 18:31:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2019-10-13 18:31:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2019-10-13 18:31:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2019-10-13 18:31:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2019-10-13 18:31:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 18:31:08,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-13 18:31:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-13 18:31:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-13 18:31:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2019-10-13 18:31:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2019-10-13 18:31:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2019-10-13 18:31:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 18:31:08,754 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:31:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 18:31:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:31:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 18:31:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 18:31:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:31:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 18:31:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 18:31:08,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 18:31:08,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 18:31:09,585 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 18:31:18,227 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:31:18,228 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 18:31:18,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:31:18 BoogieIcfgContainer [2019-10-13 18:31:18,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:31:18,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:31:18,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:31:18,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:31:18,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:31:06" (1/3) ... [2019-10-13 18:31:18,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488859a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:31:18, skipping insertion in model container [2019-10-13 18:31:18,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:31:08" (2/3) ... [2019-10-13 18:31:18,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488859a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:31:18, skipping insertion in model container [2019-10-13 18:31:18,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:31:18" (3/3) ... [2019-10-13 18:31:18,242 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--arcnet--rfc1201.ko-entry_point.cil.out.i [2019-10-13 18:31:18,252 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:31:18,262 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:31:18,273 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:31:18,307 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:31:18,307 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:31:18,307 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:31:18,307 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:31:18,308 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:31:18,308 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:31:18,309 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:31:18,309 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:31:18,334 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states. [2019-10-13 18:31:18,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-13 18:31:18,345 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:31:18,347 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] [2019-10-13 18:31:18,349 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:31:18,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:31:18,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1228622639, now seen corresponding path program 1 times [2019-10-13 18:31:18,364 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:31:18,365 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762442406] [2019-10-13 18:31:18,365 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:18,365 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:18,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:31:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:19,449 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2019-10-13 18:31:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:19,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:19,616 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 18:31:19,616 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762442406] [2019-10-13 18:31:19,617 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:31:19,618 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 18:31:19,618 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428988702] [2019-10-13 18:31:19,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 18:31:19,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:31:19,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 18:31:19,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 18:31:19,640 INFO L87 Difference]: Start difference. First operand 398 states. Second operand 7 states. [2019-10-13 18:31:20,037 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2019-10-13 18:31:21,118 WARN L191 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2019-10-13 18:31:31,336 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2019-10-13 18:31:44,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:31:44,861 INFO L93 Difference]: Finished difference Result 1278 states and 1817 transitions. [2019-10-13 18:31:44,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 18:31:44,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2019-10-13 18:31:44,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:31:44,908 INFO L225 Difference]: With dead ends: 1278 [2019-10-13 18:31:44,909 INFO L226 Difference]: Without dead ends: 903 [2019-10-13 18:31:44,923 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2019-10-13 18:31:44,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2019-10-13 18:31:45,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 664. [2019-10-13 18:31:45,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2019-10-13 18:31:45,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 891 transitions. [2019-10-13 18:31:45,160 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 891 transitions. Word has length 49 [2019-10-13 18:31:45,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:31:45,161 INFO L462 AbstractCegarLoop]: Abstraction has 664 states and 891 transitions. [2019-10-13 18:31:45,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 18:31:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 891 transitions. [2019-10-13 18:31:45,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 18:31:45,165 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:31:45,165 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] [2019-10-13 18:31:45,166 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:31:45,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:31:45,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1842869998, now seen corresponding path program 1 times [2019-10-13 18:31:45,166 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:31:45,167 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572232331] [2019-10-13 18:31:45,167 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:45,167 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:31:45,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:31:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:45,651 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2019-10-13 18:31:45,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:45,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:31:45,844 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 18:31:45,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572232331] [2019-10-13 18:31:45,845 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:31:45,845 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 18:31:45,845 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347340961] [2019-10-13 18:31:45,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 18:31:45,848 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:31:45,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 18:31:45,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-13 18:31:45,849 INFO L87 Difference]: Start difference. First operand 664 states and 891 transitions. Second operand 10 states. [2019-10-13 18:31:46,272 WARN L191 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2019-10-13 18:31:47,226 WARN L191 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2019-10-13 18:31:47,782 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 231