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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:54:40,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:54:40,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:54:40,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:54:40,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:54:40,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:54:40,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:54:40,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:54:40,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:54:40,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:54:40,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:54:40,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:54:40,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:54:40,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:54:40,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:54:40,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:54:40,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:54:40,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:54:40,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:54:40,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:54:40,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:54:40,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:54:40,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:54:40,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:54:40,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:54:40,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:54:40,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:54:40,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:54:40,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:54:40,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:54:40,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:54:40,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:54:40,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:54:40,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:54:40,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:54:40,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:54:40,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:54:40,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:54:40,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:54:40,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:54:40,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:54:40,565 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 22:54:40,579 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:54:40,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:54:40,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:54:40,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:54:40,582 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:54:40,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:54:40,583 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:54:40,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:54:40,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:54:40,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:54:40,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:54:40,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:54:40,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:54:40,585 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:54:40,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:54:40,585 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:54:40,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:54:40,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:54:40,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:54:40,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:54:40,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:54:40,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:54:40,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:54:40,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:54:40,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:54:40,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:54:40,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:54:40,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:54:40,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 22:54:40,857 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:54:40,873 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:54:40,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:54:40,878 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:54:40,879 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:54:40,879 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 22:54:40,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8fb5b4bc/f54dea927fbb4ae4808ccad8a1c57476/FLAG535c9f2d4 [2019-10-13 22:54:41,809 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:54:41,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 22:54:41,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8fb5b4bc/f54dea927fbb4ae4808ccad8a1c57476/FLAG535c9f2d4 [2019-10-13 22:54:42,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8fb5b4bc/f54dea927fbb4ae4808ccad8a1c57476 [2019-10-13 22:54:42,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:54:42,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:54:42,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:54:42,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:54:42,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:54:42,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:54:42" (1/1) ... [2019-10-13 22:54:42,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c44d314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:42, skipping insertion in model container [2019-10-13 22:54:42,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:54:42" (1/1) ... [2019-10-13 22:54:42,306 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:54:42,425 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:54:44,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:54:44,280 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:54:44,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:54:44,954 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:54:44,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:44 WrapperNode [2019-10-13 22:54:44,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:54:44,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:54:44,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:54:44,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:54:44,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:44" (1/1) ... [2019-10-13 22:54:44,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:44" (1/1) ... [2019-10-13 22:54:45,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:44" (1/1) ... [2019-10-13 22:54:45,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:44" (1/1) ... [2019-10-13 22:54:45,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:44" (1/1) ... [2019-10-13 22:54:45,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:44" (1/1) ... [2019-10-13 22:54:45,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:44" (1/1) ... [2019-10-13 22:54:45,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:54:45,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:54:45,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:54:45,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:54:45,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:44" (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 22:54:45,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:54:45,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:54:45,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-13 22:54:45,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-10-13 22:54:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-13 22:54:45,361 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-13 22:54:45,363 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-13 22:54:45,363 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-13 22:54:45,363 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-13 22:54:45,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 22:54:45,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 22:54:45,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 22:54:45,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 22:54:45,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 22:54:45,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 22:54:45,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 22:54:45,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 22:54:45,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2019-10-13 22:54:45,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 22:54:45,369 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 22:54:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 22:54:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 22:54:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-10-13 22:54:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 22:54:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-10-13 22:54:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 22:54:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 22:54:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 22:54:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 22:54:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-10-13 22:54:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-10-13 22:54:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-10-13 22:54:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-10-13 22:54:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2019-10-13 22:54:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-10-13 22:54:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-10-13 22:54:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-10-13 22:54:45,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-10-13 22:54:45,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-10-13 22:54:45,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-10-13 22:54:45,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2019-10-13 22:54:45,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2019-10-13 22:54:45,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-10-13 22:54:45,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc_bufs [2019-10-13 22:54:45,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2019-10-13 22:54:45,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_realloc_bufs [2019-10-13 22:54:45,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_lock [2019-10-13 22:54:45,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2019-10-13 22:54:45,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2019-10-13 22:54:45,374 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_encaps [2019-10-13 22:54:45,375 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_write_wakeup [2019-10-13 22:54:45,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2019-10-13 22:54:45,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_xmit [2019-10-13 22:54:45,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_close [2019-10-13 22:54:45,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_open [2019-10-13 22:54:45,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2019-10-13 22:54:45,375 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2019-10-13 22:54:45,376 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_init [2019-10-13 22:54:45,376 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_uninit [2019-10-13 22:54:45,376 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_netdev [2019-10-13 22:54:45,377 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_setup [2019-10-13 22:54:45,377 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_receive_buf [2019-10-13 22:54:45,377 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_sync [2019-10-13 22:54:45,377 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc [2019-10-13 22:54:45,377 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_open [2019-10-13 22:54:45,378 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2019-10-13 22:54:45,378 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2019-10-13 22:54:45,378 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc [2019-10-13 22:54:45,378 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc [2019-10-13 22:54:45,378 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc6 [2019-10-13 22:54:45,378 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc6 [2019-10-13 22:54:45,379 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2019-10-13 22:54:45,379 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2019-10-13 22:54:45,380 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2019-10-13 22:54:45,380 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_init [2019-10-13 22:54:45,380 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_exit [2019-10-13 22:54:45,381 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_outfill [2019-10-13 22:54:45,381 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_keepalive [2019-10-13 22:54:45,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-10-13 22:54:45,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_4 [2019-10-13 22:54:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-10-13 22:54:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-10-13 22:54:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-10-13 22:54:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-10-13 22:54:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-10-13 22:54:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-10-13 22:54:45,383 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-10-13 22:54:45,383 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-10-13 22:54:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:54:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_1 [2019-10-13 22:54:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_2 [2019-10-13 22:54:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sl_alloc_bufs_3 [2019-10-13 22:54:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdevice_4 [2019-10-13 22:54:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_5 [2019-10-13 22:54:45,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_6 [2019-10-13 22:54:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_7 [2019-10-13 22:54:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_8 [2019-10-13 22:54:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_9 [2019-10-13 22:54:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_10 [2019-10-13 22:54:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_11 [2019-10-13 22:54:45,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-10-13 22:54:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_13 [2019-10-13 22:54:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_14 [2019-10-13 22:54:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_15 [2019-10-13 22:54:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-10-13 22:54:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_17 [2019-10-13 22:54:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_slip_open_18 [2019-10-13 22:54:45,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 22:54:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_callback_ret_val [2019-10-13 22:54:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-10-13 22:54:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 22:54:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 22:54:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 22:54:45,387 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-10-13 22:54:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 22:54:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-10-13 22:54:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-10-13 22:54:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-10-13 22:54:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-13 22:54:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-13 22:54:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-13 22:54:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-10-13 22:54:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-10-13 22:54:45,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2019-10-13 22:54:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-10-13 22:54:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-10-13 22:54:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 22:54:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 22:54:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 22:54:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-10-13 22:54:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2019-10-13 22:54:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-10-13 22:54:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-10-13 22:54:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 22:54:45,392 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2019-10-13 22:54:45,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2019-10-13 22:54:45,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2019-10-13 22:54:45,392 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-13 22:54:45,394 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-10-13 22:54:45,394 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-10-13 22:54:45,394 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-10-13 22:54:45,394 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-10-13 22:54:45,394 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-10-13 22:54:45,395 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2019-10-13 22:54:45,403 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2019-10-13 22:54:45,403 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-10-13 22:54:45,404 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-10-13 22:54:45,404 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-10-13 22:54:45,404 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-10-13 22:54:45,404 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-10-13 22:54:45,405 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2019-10-13 22:54:45,405 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 22:54:45,405 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 22:54:45,405 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 22:54:45,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 22:54:45,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 22:54:45,406 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 22:54:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:54:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 22:54:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-13 22:54:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-13 22:54:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-13 22:54:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-13 22:54:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-13 22:54:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:54:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 22:54:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 22:54:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 22:54:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 22:54:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 22:54:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 22:54:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 22:54:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:54:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 22:54:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 22:54:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:54:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 22:54:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 22:54:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 22:54:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 22:54:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 22:54:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 22:54:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 22:54:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 22:54:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 22:54:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 22:54:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 22:54:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2019-10-13 22:54:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_callback_ret_val [2019-10-13 22:54:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 22:54:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 22:54:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-13 22:54:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-13 22:54:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 22:54:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 22:54:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-10-13 22:54:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 22:54:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-10-13 22:54:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 22:54:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 22:54:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-10-13 22:54:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 22:54:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-10-13 22:54:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2019-10-13 22:54:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-13 22:54:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_2 [2019-10-13 22:54:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_8 [2019-10-13 22:54:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_10 [2019-10-13 22:54:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-10-13 22:54:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_14 [2019-10-13 22:54:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-10-13 22:54:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-10-13 22:54:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_7 [2019-10-13 22:54:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_9 [2019-10-13 22:54:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_11 [2019-10-13 22:54:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_13 [2019-10-13 22:54:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_15 [2019-10-13 22:54:45,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_17 [2019-10-13 22:54:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-10-13 22:54:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-10-13 22:54:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_1 [2019-10-13 22:54:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_5 [2019-10-13 22:54:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_6 [2019-10-13 22:54:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 22:54:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 22:54:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 22:54:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 22:54:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-10-13 22:54:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_4 [2019-10-13 22:54:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-10-13 22:54:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-10-13 22:54:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-10-13 22:54:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-10-13 22:54:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-10-13 22:54:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-10-13 22:54:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-10-13 22:54:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-10-13 22:54:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 22:54:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 22:54:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-13 22:54:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2019-10-13 22:54:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-10-13 22:54:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-10-13 22:54:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2019-10-13 22:54:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-10-13 22:54:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-10-13 22:54:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-13 22:54:45,417 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-13 22:54:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-10-13 22:54:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 22:54:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:54:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-10-13 22:54:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-10-13 22:54:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-10-13 22:54:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-10-13 22:54:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2019-10-13 22:54:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2019-10-13 22:54:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdevice_4 [2019-10-13 22:54:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2019-10-13 22:54:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2019-10-13 22:54:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-10-13 22:54:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-10-13 22:54:45,422 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-10-13 22:54:45,423 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-10-13 22:54:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-10-13 22:54:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-10-13 22:54:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-10-13 22:54:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-10-13 22:54:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:54:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-10-13 22:54:45,424 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2019-10-13 22:54:45,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2019-10-13 22:54:45,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-10-13 22:54:45,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-10-13 22:54:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-10-13 22:54:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-10-13 22:54:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-10-13 22:54:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2019-10-13 22:54:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2019-10-13 22:54:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-10-13 22:54:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-10-13 22:54:45,426 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-10-13 22:54:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-10-13 22:54:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-10-13 22:54:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc [2019-10-13 22:54:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc [2019-10-13 22:54:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc6 [2019-10-13 22:54:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc6 [2019-10-13 22:54:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure sl_keepalive [2019-10-13 22:54:45,427 INFO L130 BoogieDeclarations]: Found specification of procedure sl_outfill [2019-10-13 22:54:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2019-10-13 22:54:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc_bufs [2019-10-13 22:54:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sl_alloc_bufs_3 [2019-10-13 22:54:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2019-10-13 22:54:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 22:54:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure sl_realloc_bufs [2019-10-13 22:54:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 22:54:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 22:54:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure sl_lock [2019-10-13 22:54:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2019-10-13 22:54:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2019-10-13 22:54:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure sl_encaps [2019-10-13 22:54:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-13 22:54:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:54:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure slip_write_wakeup [2019-10-13 22:54:45,429 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2019-10-13 22:54:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure sl_xmit [2019-10-13 22:54:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure sl_close [2019-10-13 22:54:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure sl_open [2019-10-13 22:54:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2019-10-13 22:54:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2019-10-13 22:54:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure sl_init [2019-10-13 22:54:45,430 INFO L130 BoogieDeclarations]: Found specification of procedure sl_uninit [2019-10-13 22:54:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_netdev [2019-10-13 22:54:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure sl_setup [2019-10-13 22:54:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure slip_receive_buf [2019-10-13 22:54:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure sl_sync [2019-10-13 22:54:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc [2019-10-13 22:54:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure slip_open [2019-10-13 22:54:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_slip_open_18 [2019-10-13 22:54:45,431 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2019-10-13 22:54:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2019-10-13 22:54:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2019-10-13 22:54:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2019-10-13 22:54:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure slip_init [2019-10-13 22:54:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure slip_exit [2019-10-13 22:54:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 22:54:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 22:54:45,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-10-13 22:54:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:54:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 22:54:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 22:54:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 22:54:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 22:54:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:54:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 22:54:45,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 22:54:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:54:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 22:54:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 22:54:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 22:54:45,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 22:54:46,566 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 22:54:57,069 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:54:57,069 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:54:57,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:54:57 BoogieIcfgContainer [2019-10-13 22:54:57,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:54:57,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:54:57,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:54:57,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:54:57,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:54:42" (1/3) ... [2019-10-13 22:54:57,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1da82f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:54:57, skipping insertion in model container [2019-10-13 22:54:57,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:54:44" (2/3) ... [2019-10-13 22:54:57,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1da82f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:54:57, skipping insertion in model container [2019-10-13 22:54:57,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:54:57" (3/3) ... [2019-10-13 22:54:57,080 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 22:54:57,091 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:54:57,109 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:54:57,121 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:54:57,165 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:54:57,166 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:54:57,166 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:54:57,166 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:54:57,166 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:54:57,166 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:54:57,166 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:54:57,166 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:54:57,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states. [2019-10-13 22:54:57,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-13 22:54:57,258 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:57,260 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:57,262 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:57,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:57,267 INFO L82 PathProgramCache]: Analyzing trace with hash 2060249647, now seen corresponding path program 1 times [2019-10-13 22:54:57,276 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:57,277 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825823582] [2019-10-13 22:54:57,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:57,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:57,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:58,060 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2019-10-13 22:54:58,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825823582] [2019-10-13 22:54:58,061 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:58,062 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:54:58,062 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112008654] [2019-10-13 22:54:58,067 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:54:58,067 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:58,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:54:58,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:58,084 INFO L87 Difference]: Start difference. First operand 1150 states. Second operand 3 states. [2019-10-13 22:54:58,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:58,509 INFO L93 Difference]: Finished difference Result 2852 states and 3787 transitions. [2019-10-13 22:54:58,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:54:58,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-10-13 22:54:58,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:58,561 INFO L225 Difference]: With dead ends: 2852 [2019-10-13 22:54:58,562 INFO L226 Difference]: Without dead ends: 1654 [2019-10-13 22:54:58,577 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:54:58,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2019-10-13 22:54:58,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1654. [2019-10-13 22:54:58,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-10-13 22:54:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2178 transitions. [2019-10-13 22:54:58,818 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2178 transitions. Word has length 140 [2019-10-13 22:54:58,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:58,821 INFO L462 AbstractCegarLoop]: Abstraction has 1654 states and 2178 transitions. [2019-10-13 22:54:58,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:54:58,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2178 transitions. [2019-10-13 22:54:58,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-13 22:54:58,835 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:58,836 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:54:58,836 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:58,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:58,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1710487695, now seen corresponding path program 1 times [2019-10-13 22:54:58,837 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:58,837 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053076225] [2019-10-13 22:54:58,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:58,838 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:58,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:54:59,346 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2019-10-13 22:54:59,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053076225] [2019-10-13 22:54:59,346 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:54:59,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 22:54:59,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586717834] [2019-10-13 22:54:59,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 22:54:59,349 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:54:59,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 22:54:59,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 22:54:59,350 INFO L87 Difference]: Start difference. First operand 1654 states and 2178 transitions. Second operand 10 states. [2019-10-13 22:54:59,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:54:59,538 INFO L93 Difference]: Finished difference Result 3273 states and 4310 transitions. [2019-10-13 22:54:59,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:54:59,539 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2019-10-13 22:54:59,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:54:59,553 INFO L225 Difference]: With dead ends: 3273 [2019-10-13 22:54:59,554 INFO L226 Difference]: Without dead ends: 1656 [2019-10-13 22:54:59,562 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 22:54:59,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2019-10-13 22:54:59,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1654. [2019-10-13 22:54:59,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-10-13 22:54:59,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2176 transitions. [2019-10-13 22:54:59,641 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2176 transitions. Word has length 195 [2019-10-13 22:54:59,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:54:59,644 INFO L462 AbstractCegarLoop]: Abstraction has 1654 states and 2176 transitions. [2019-10-13 22:54:59,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 22:54:59,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2176 transitions. [2019-10-13 22:54:59,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-13 22:54:59,653 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:54:59,653 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:54:59,654 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:54:59,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:54:59,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1492523137, now seen corresponding path program 1 times [2019-10-13 22:54:59,655 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:54:59,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597753572] [2019-10-13 22:54:59,655 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:59,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:54:59,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:54:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:55:00,126 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2019-10-13 22:55:00,127 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597753572] [2019-10-13 22:55:00,127 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:55:00,127 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 22:55:00,127 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10383451] [2019-10-13 22:55:00,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 22:55:00,128 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:55:00,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 22:55:00,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:55:00,129 INFO L87 Difference]: Start difference. First operand 1654 states and 2176 transitions. Second operand 7 states. [2019-10-13 22:55:00,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:55:00,248 INFO L93 Difference]: Finished difference Result 1667 states and 2189 transitions. [2019-10-13 22:55:00,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 22:55:00,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2019-10-13 22:55:00,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:55:00,260 INFO L225 Difference]: With dead ends: 1667 [2019-10-13 22:55:00,260 INFO L226 Difference]: Without dead ends: 1664 [2019-10-13 22:55:00,262 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:55:00,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2019-10-13 22:55:00,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1662. [2019-10-13 22:55:00,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2019-10-13 22:55:00,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2184 transitions. [2019-10-13 22:55:00,335 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2184 transitions. Word has length 201 [2019-10-13 22:55:00,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:55:00,337 INFO L462 AbstractCegarLoop]: Abstraction has 1662 states and 2184 transitions. [2019-10-13 22:55:00,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 22:55:00,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2184 transitions. [2019-10-13 22:55:00,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-13 22:55:00,347 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:55:00,347 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:00,347 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:55:00,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:55:00,348 INFO L82 PathProgramCache]: Analyzing trace with hash 561078519, now seen corresponding path program 1 times [2019-10-13 22:55:00,348 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:55:00,348 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264243390] [2019-10-13 22:55:00,349 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:00,349 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:00,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:55:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:55:00,649 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2019-10-13 22:55:00,650 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264243390] [2019-10-13 22:55:00,651 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:55:00,651 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 22:55:00,651 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124356079] [2019-10-13 22:55:00,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 22:55:00,655 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:55:00,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 22:55:00,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 22:55:00,656 INFO L87 Difference]: Start difference. First operand 1662 states and 2184 transitions. Second operand 8 states. [2019-10-13 22:55:00,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:55:00,826 INFO L93 Difference]: Finished difference Result 1695 states and 2223 transitions. [2019-10-13 22:55:00,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 22:55:00,826 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 216 [2019-10-13 22:55:00,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:55:00,836 INFO L225 Difference]: With dead ends: 1695 [2019-10-13 22:55:00,836 INFO L226 Difference]: Without dead ends: 1692 [2019-10-13 22:55:00,838 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-13 22:55:00,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2019-10-13 22:55:00,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1664. [2019-10-13 22:55:00,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1664 states. [2019-10-13 22:55:00,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2187 transitions. [2019-10-13 22:55:00,909 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2187 transitions. Word has length 216 [2019-10-13 22:55:00,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:55:00,910 INFO L462 AbstractCegarLoop]: Abstraction has 1664 states and 2187 transitions. [2019-10-13 22:55:00,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 22:55:00,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2187 transitions. [2019-10-13 22:55:00,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-13 22:55:00,921 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:55:00,922 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:00,922 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:55:00,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:55:00,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1907033541, now seen corresponding path program 1 times [2019-10-13 22:55:00,923 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:55:00,923 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003496190] [2019-10-13 22:55:00,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:00,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:00,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:55:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:55:01,386 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2019-10-13 22:55:01,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003496190] [2019-10-13 22:55:01,387 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:55:01,388 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 22:55:01,388 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533470316] [2019-10-13 22:55:01,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 22:55:01,389 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:55:01,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 22:55:01,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:55:01,390 INFO L87 Difference]: Start difference. First operand 1664 states and 2187 transitions. Second operand 4 states. [2019-10-13 22:55:03,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:55:03,972 INFO L93 Difference]: Finished difference Result 3829 states and 5033 transitions. [2019-10-13 22:55:03,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 22:55:03,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 244 [2019-10-13 22:55:03,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:55:03,989 INFO L225 Difference]: With dead ends: 3829 [2019-10-13 22:55:03,990 INFO L226 Difference]: Without dead ends: 2210 [2019-10-13 22:55:03,996 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 22:55:04,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2019-10-13 22:55:04,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2209. [2019-10-13 22:55:04,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2209 states. [2019-10-13 22:55:04,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 2896 transitions. [2019-10-13 22:55:04,119 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 2896 transitions. Word has length 244 [2019-10-13 22:55:04,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:55:04,120 INFO L462 AbstractCegarLoop]: Abstraction has 2209 states and 2896 transitions. [2019-10-13 22:55:04,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 22:55:04,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 2896 transitions. [2019-10-13 22:55:04,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-13 22:55:04,134 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:55:04,134 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:04,135 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:55:04,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:55:04,135 INFO L82 PathProgramCache]: Analyzing trace with hash -631311840, now seen corresponding path program 1 times [2019-10-13 22:55:04,136 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:55:04,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784270650] [2019-10-13 22:55:04,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:04,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:04,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:55:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:55:04,499 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2019-10-13 22:55:04,500 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784270650] [2019-10-13 22:55:04,500 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:55:04,501 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 22:55:04,507 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092538750] [2019-10-13 22:55:04,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 22:55:04,508 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:55:04,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 22:55:04,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:55:04,509 INFO L87 Difference]: Start difference. First operand 2209 states and 2896 transitions. Second operand 5 states. [2019-10-13 22:55:04,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:55:04,675 INFO L93 Difference]: Finished difference Result 3836 states and 5038 transitions. [2019-10-13 22:55:04,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 22:55:04,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2019-10-13 22:55:04,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:55:04,696 INFO L225 Difference]: With dead ends: 3836 [2019-10-13 22:55:04,696 INFO L226 Difference]: Without dead ends: 2217 [2019-10-13 22:55:04,705 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 22:55:04,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2217 states. [2019-10-13 22:55:04,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2217 to 2213. [2019-10-13 22:55:04,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2213 states. [2019-10-13 22:55:04,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 2900 transitions. [2019-10-13 22:55:04,846 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 2900 transitions. Word has length 246 [2019-10-13 22:55:04,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:55:04,846 INFO L462 AbstractCegarLoop]: Abstraction has 2213 states and 2900 transitions. [2019-10-13 22:55:04,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 22:55:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 2900 transitions. [2019-10-13 22:55:04,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2019-10-13 22:55:04,860 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:55:04,861 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:04,861 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:55:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:55:04,862 INFO L82 PathProgramCache]: Analyzing trace with hash -730919617, now seen corresponding path program 1 times [2019-10-13 22:55:04,862 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:55:04,862 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163373788] [2019-10-13 22:55:04,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:04,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:04,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:55:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:55:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2019-10-13 22:55:05,187 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163373788] [2019-10-13 22:55:05,187 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:55:05,187 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:55:05,187 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993329958] [2019-10-13 22:55:05,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:55:05,189 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:55:05,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:55:05,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:55:05,190 INFO L87 Difference]: Start difference. First operand 2213 states and 2900 transitions. Second operand 3 states. [2019-10-13 22:55:05,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:55:05,344 INFO L93 Difference]: Finished difference Result 3839 states and 5043 transitions. [2019-10-13 22:55:05,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:55:05,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2019-10-13 22:55:05,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:55:05,358 INFO L225 Difference]: With dead ends: 3839 [2019-10-13 22:55:05,359 INFO L226 Difference]: Without dead ends: 2216 [2019-10-13 22:55:05,365 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:55:05,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2019-10-13 22:55:05,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2214. [2019-10-13 22:55:05,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2214 states. [2019-10-13 22:55:05,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2214 states to 2214 states and 2901 transitions. [2019-10-13 22:55:05,476 INFO L78 Accepts]: Start accepts. Automaton has 2214 states and 2901 transitions. Word has length 268 [2019-10-13 22:55:05,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:55:05,478 INFO L462 AbstractCegarLoop]: Abstraction has 2214 states and 2901 transitions. [2019-10-13 22:55:05,478 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:55:05,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2214 states and 2901 transitions. [2019-10-13 22:55:05,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2019-10-13 22:55:05,491 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:55:05,491 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:05,491 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:55:05,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:55:05,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1518582705, now seen corresponding path program 1 times [2019-10-13 22:55:05,492 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:55:05,492 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965422021] [2019-10-13 22:55:05,493 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:05,493 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:05,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:55:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:55:05,712 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2019-10-13 22:55:05,713 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965422021] [2019-10-13 22:55:05,713 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:55:05,713 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:55:05,714 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631693644] [2019-10-13 22:55:05,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:55:05,715 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:55:05,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:55:05,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:55:05,716 INFO L87 Difference]: Start difference. First operand 2214 states and 2901 transitions. Second operand 3 states. [2019-10-13 22:55:05,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:55:05,827 INFO L93 Difference]: Finished difference Result 3829 states and 5030 transitions. [2019-10-13 22:55:05,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:55:05,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2019-10-13 22:55:05,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:55:05,844 INFO L225 Difference]: With dead ends: 3829 [2019-10-13 22:55:05,844 INFO L226 Difference]: Without dead ends: 2205 [2019-10-13 22:55:05,852 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:55:05,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2019-10-13 22:55:05,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2201. [2019-10-13 22:55:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2201 states. [2019-10-13 22:55:05,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2883 transitions. [2019-10-13 22:55:05,960 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2883 transitions. Word has length 269 [2019-10-13 22:55:05,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:55:05,961 INFO L462 AbstractCegarLoop]: Abstraction has 2201 states and 2883 transitions. [2019-10-13 22:55:05,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:55:05,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2883 transitions. [2019-10-13 22:55:05,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-10-13 22:55:05,975 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:55:05,975 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:05,976 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:55:05,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:55:05,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1633386451, now seen corresponding path program 1 times [2019-10-13 22:55:05,976 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:55:05,977 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863858071] [2019-10-13 22:55:05,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:05,977 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:05,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:55:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:55:06,497 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2019-10-13 22:55:06,497 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863858071] [2019-10-13 22:55:06,498 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:55:06,498 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 22:55:06,498 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235416678] [2019-10-13 22:55:06,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 22:55:06,499 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:55:06,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 22:55:06,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:55:06,500 INFO L87 Difference]: Start difference. First operand 2201 states and 2883 transitions. Second operand 7 states. [2019-10-13 22:55:12,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:55:12,015 INFO L93 Difference]: Finished difference Result 3823 states and 5021 transitions. [2019-10-13 22:55:12,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 22:55:12,016 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 278 [2019-10-13 22:55:12,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:55:12,030 INFO L225 Difference]: With dead ends: 3823 [2019-10-13 22:55:12,030 INFO L226 Difference]: Without dead ends: 2212 [2019-10-13 22:55:12,039 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-13 22:55:12,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2212 states. [2019-10-13 22:55:12,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2212 to 2202. [2019-10-13 22:55:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2202 states. [2019-10-13 22:55:12,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2884 transitions. [2019-10-13 22:55:12,180 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2884 transitions. Word has length 278 [2019-10-13 22:55:12,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:55:12,180 INFO L462 AbstractCegarLoop]: Abstraction has 2202 states and 2884 transitions. [2019-10-13 22:55:12,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 22:55:12,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2884 transitions. [2019-10-13 22:55:12,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2019-10-13 22:55:12,198 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:55:12,199 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:12,199 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:55:12,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:55:12,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1539494461, now seen corresponding path program 1 times [2019-10-13 22:55:12,200 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:55:12,201 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865600192] [2019-10-13 22:55:12,201 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:12,201 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:55:12,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:55:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:55:12,896 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2019-10-13 22:55:12,896 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865600192] [2019-10-13 22:55:12,896 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374091574] [2019-10-13 22:55:12,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true