java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-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 0.1.24-112bae1 [2019-09-10 11:34:01,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 11:34:01,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 11:34:01,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 11:34:01,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 11:34:01,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 11:34:01,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 11:34:01,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 11:34:01,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 11:34:01,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 11:34:01,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 11:34:01,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 11:34:01,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 11:34:01,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 11:34:01,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 11:34:01,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 11:34:01,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 11:34:01,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 11:34:01,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 11:34:01,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 11:34:01,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 11:34:01,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 11:34:01,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 11:34:01,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 11:34:01,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 11:34:01,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 11:34:01,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 11:34:01,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 11:34:01,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 11:34:01,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 11:34:01,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 11:34:01,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 11:34:01,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 11:34:01,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 11:34:01,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 11:34:01,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 11:34:01,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 11:34:01,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 11:34:01,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 11:34:01,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 11:34:01,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 11:34:01,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 11:34:01,290 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 11:34:01,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 11:34:01,291 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 11:34:01,291 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 11:34:01,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 11:34:01,292 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 11:34:01,292 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 11:34:01,292 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 11:34:01,292 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 11:34:01,293 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 11:34:01,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 11:34:01,293 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 11:34:01,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 11:34:01,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 11:34:01,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 11:34:01,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 11:34:01,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 11:34:01,295 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 11:34:01,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 11:34:01,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 11:34:01,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 11:34:01,295 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 11:34:01,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 11:34:01,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 11:34:01,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 11:34:01,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 11:34:01,296 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 11:34:01,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 11:34:01,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 11:34:01,297 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 11:34:01,332 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 11:34:01,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 11:34:01,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 11:34:01,349 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 11:34:01,350 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 11:34:01,350 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-10 11:34:01,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3886f8eb/35b6e1b54b0745eca1052c0228045829/FLAG7811b61eb [2019-09-10 11:34:02,251 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 11:34:02,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-10 11:34:02,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3886f8eb/35b6e1b54b0745eca1052c0228045829/FLAG7811b61eb [2019-09-10 11:34:02,730 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3886f8eb/35b6e1b54b0745eca1052c0228045829 [2019-09-10 11:34:02,743 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 11:34:02,744 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 11:34:02,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 11:34:02,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 11:34:02,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 11:34:02,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:34:02" (1/1) ... [2019-09-10 11:34:02,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a50c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:02, skipping insertion in model container [2019-09-10 11:34:02,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:34:02" (1/1) ... [2019-09-10 11:34:02,765 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 11:34:02,905 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 11:34:04,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 11:34:04,902 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 11:34:05,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 11:34:05,480 INFO L192 MainTranslator]: Completed translation [2019-09-10 11:34:05,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:05 WrapperNode [2019-09-10 11:34:05,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 11:34:05,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 11:34:05,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 11:34:05,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 11:34:05,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:05" (1/1) ... [2019-09-10 11:34:05,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:05" (1/1) ... [2019-09-10 11:34:05,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:05" (1/1) ... [2019-09-10 11:34:05,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:05" (1/1) ... [2019-09-10 11:34:05,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:05" (1/1) ... [2019-09-10 11:34:05,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:05" (1/1) ... [2019-09-10 11:34:05,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:05" (1/1) ... [2019-09-10 11:34:05,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 11:34:05,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 11:34:05,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 11:34:05,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 11:34:05,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 11:34:05,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 11:34:05,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 11:34:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-09-10 11:34:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2019-09-10 11:34:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-09-10 11:34:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-09-10 11:34:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-09-10 11:34:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-09-10 11:34:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-09-10 11:34:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 11:34:05,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-10 11:34:05,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-10 11:34:05,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-10 11:34:05,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-10 11:34:05,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 11:34:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-10 11:34:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 11:34:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2019-09-10 11:34:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-10 11:34:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-09-10 11:34:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-10 11:34:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-09-10 11:34:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2019-09-10 11:34:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-09-10 11:34:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2019-09-10 11:34:05,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-10 11:34:05,850 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-10 11:34:05,850 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-10 11:34:05,850 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-10 11:34:05,851 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2019-09-10 11:34:05,851 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2019-09-10 11:34:05,851 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2019-09-10 11:34:05,851 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2019-09-10 11:34:05,851 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2019-09-10 11:34:05,851 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2019-09-10 11:34:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2019-09-10 11:34:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2019-09-10 11:34:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2019-09-10 11:34:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2019-09-10 11:34:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2019-09-10 11:34:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2019-09-10 11:34:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2019-09-10 11:34:05,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2019-09-10 11:34:05,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc_bufs [2019-09-10 11:34:05,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2019-09-10 11:34:05,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_realloc_bufs [2019-09-10 11:34:05,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_lock [2019-09-10 11:34:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2019-09-10 11:34:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2019-09-10 11:34:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_encaps [2019-09-10 11:34:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_write_wakeup [2019-09-10 11:34:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2019-09-10 11:34:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_xmit [2019-09-10 11:34:05,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_close [2019-09-10 11:34:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_open [2019-09-10 11:34:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2019-09-10 11:34:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2019-09-10 11:34:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_init [2019-09-10 11:34:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_uninit [2019-09-10 11:34:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_netdev [2019-09-10 11:34:05,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_setup [2019-09-10 11:34:05,856 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_receive_buf [2019-09-10 11:34:05,856 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_sync [2019-09-10 11:34:05,856 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_alloc [2019-09-10 11:34:05,856 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_open [2019-09-10 11:34:05,856 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2019-09-10 11:34:05,857 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2019-09-10 11:34:05,857 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc [2019-09-10 11:34:05,857 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc [2019-09-10 11:34:05,857 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_esc6 [2019-09-10 11:34:05,858 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_unesc6 [2019-09-10 11:34:05,858 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2019-09-10 11:34:05,858 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2019-09-10 11:34:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2019-09-10 11:34:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_init [2019-09-10 11:34:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_exit [2019-09-10 11:34:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_outfill [2019-09-10 11:34:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_keepalive [2019-09-10 11:34:05,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_3 [2019-09-10 11:34:05,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_4 [2019-09-10 11:34:05,860 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2019-09-10 11:34:05,860 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2019-09-10 11:34:05,861 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2019-09-10 11:34:05,861 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2019-09-10 11:34:05,861 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2019-09-10 11:34:05,862 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2019-09-10 11:34:05,862 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2019-09-10 11:34:05,863 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2019-09-10 11:34:05,863 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 11:34:05,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_1 [2019-09-10 11:34:05,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_2 [2019-09-10 11:34:05,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sl_alloc_bufs_3 [2019-09-10 11:34:05,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdevice_4 [2019-09-10 11:34:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_5 [2019-09-10 11:34:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_6 [2019-09-10 11:34:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_7 [2019-09-10 11:34:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_8 [2019-09-10 11:34:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_9 [2019-09-10 11:34:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_10 [2019-09-10 11:34:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_11 [2019-09-10 11:34:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_12 [2019-09-10 11:34:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_13 [2019-09-10 11:34:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_14 [2019-09-10 11:34:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_15 [2019-09-10 11:34:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_16 [2019-09-10 11:34:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_17 [2019-09-10 11:34:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_slip_open_18 [2019-09-10 11:34:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 11:34:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_callback_ret_val [2019-09-10 11:34:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2019-09-10 11:34:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-10 11:34:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-10 11:34:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-09-10 11:34:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2019-09-10 11:34:05,867 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-09-10 11:34:05,867 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2019-09-10 11:34:05,867 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-09-10 11:34:05,867 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2019-09-10 11:34:05,868 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-09-10 11:34:05,868 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-09-10 11:34:05,869 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-09-10 11:34:05,869 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2019-09-10 11:34:05,869 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2019-09-10 11:34:05,870 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2019-09-10 11:34:05,870 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2019-09-10 11:34:05,870 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2019-09-10 11:34:05,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 11:34:05,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 11:34:05,870 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-10 11:34:05,870 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2019-09-10 11:34:05,871 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2019-09-10 11:34:05,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2019-09-10 11:34:05,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2019-09-10 11:34:05,871 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-10 11:34:05,871 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2019-09-10 11:34:05,872 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2019-09-10 11:34:05,872 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2019-09-10 11:34:05,872 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-09-10 11:34:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2019-09-10 11:34:05,876 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2019-09-10 11:34:05,876 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2019-09-10 11:34:05,876 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2019-09-10 11:34:05,877 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2019-09-10 11:34:05,883 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2019-09-10 11:34:05,883 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2019-09-10 11:34:05,883 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2019-09-10 11:34:05,884 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2019-09-10 11:34:05,884 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2019-09-10 11:34:05,884 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2019-09-10 11:34:05,884 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2019-09-10 11:34:05,884 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2019-09-10 11:34:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-10 11:34:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 11:34:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 11:34:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 11:34:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-10 11:34:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-10 11:34:05,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 11:34:05,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-10 11:34:05,886 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-09-10 11:34:05,886 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-09-10 11:34:05,886 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-09-10 11:34:05,886 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-09-10 11:34:05,886 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-09-10 11:34:05,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 11:34:05,887 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-10 11:34:05,887 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-10 11:34:05,887 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-10 11:34:05,887 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-09-10 11:34:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 11:34:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-10 11:34:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 11:34:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 11:34:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 11:34:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 11:34:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 11:34:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 11:34:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 11:34:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-10 11:34:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-10 11:34:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-10 11:34:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-10 11:34:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 11:34:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-10 11:34:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 11:34:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-10 11:34:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 11:34:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2019-09-10 11:34:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_callback_ret_val [2019-09-10 11:34:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-09-10 11:34:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-09-10 11:34:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-09-10 11:34:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-09-10 11:34:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-10 11:34:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-09-10 11:34:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2019-09-10 11:34:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-09-10 11:34:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2019-09-10 11:34:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-10 11:34:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-09-10 11:34:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2019-09-10 11:34:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-09-10 11:34:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2019-09-10 11:34:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2019-09-10 11:34:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-09-10 11:34:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_2 [2019-09-10 11:34:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_8 [2019-09-10 11:34:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_10 [2019-09-10 11:34:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_12 [2019-09-10 11:34:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_14 [2019-09-10 11:34:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_16 [2019-09-10 11:34:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2019-09-10 11:34:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_7 [2019-09-10 11:34:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_9 [2019-09-10 11:34:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_11 [2019-09-10 11:34:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_13 [2019-09-10 11:34:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_15 [2019-09-10 11:34:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_17 [2019-09-10 11:34:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-09-10 11:34:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2019-09-10 11:34:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_1 [2019-09-10 11:34:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_5 [2019-09-10 11:34:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_6 [2019-09-10 11:34:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 11:34:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-10 11:34:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-10 11:34:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-10 11:34:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_3 [2019-09-10 11:34:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_4 [2019-09-10 11:34:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2019-09-10 11:34:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2019-09-10 11:34:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2019-09-10 11:34:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2019-09-10 11:34:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2019-09-10 11:34:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2019-09-10 11:34:05,900 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2019-09-10 11:34:05,900 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2019-09-10 11:34:05,900 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-10 11:34:05,900 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-10 11:34:05,900 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-09-10 11:34:05,901 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2019-09-10 11:34:05,901 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2019-09-10 11:34:05,901 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2019-09-10 11:34:05,901 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2019-09-10 11:34:05,901 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2019-09-10 11:34:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2019-09-10 11:34:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-09-10 11:34:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-09-10 11:34:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2019-09-10 11:34:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 11:34:05,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 11:34:05,903 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2019-09-10 11:34:05,903 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2019-09-10 11:34:05,903 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2019-09-10 11:34:05,903 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2019-09-10 11:34:05,904 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2019-09-10 11:34:05,904 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2019-09-10 11:34:05,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdevice_4 [2019-09-10 11:34:05,904 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2019-09-10 11:34:05,904 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2019-09-10 11:34:05,904 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2019-09-10 11:34:05,905 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2019-09-10 11:34:05,905 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2019-09-10 11:34:05,905 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2019-09-10 11:34:05,905 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2019-09-10 11:34:05,907 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2019-09-10 11:34:05,912 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2019-09-10 11:34:05,912 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2019-09-10 11:34:05,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 11:34:05,912 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2019-09-10 11:34:05,913 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2019-09-10 11:34:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2019-09-10 11:34:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2019-09-10 11:34:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2019-09-10 11:34:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2019-09-10 11:34:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2019-09-10 11:34:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2019-09-10 11:34:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2019-09-10 11:34:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2019-09-10 11:34:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2019-09-10 11:34:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2019-09-10 11:34:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2019-09-10 11:34:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2019-09-10 11:34:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2019-09-10 11:34:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc [2019-09-10 11:34:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc [2019-09-10 11:34:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure slip_esc6 [2019-09-10 11:34:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure slip_unesc6 [2019-09-10 11:34:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure sl_keepalive [2019-09-10 11:34:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure sl_outfill [2019-09-10 11:34:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2019-09-10 11:34:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc_bufs [2019-09-10 11:34:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sl_alloc_bufs_3 [2019-09-10 11:34:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2019-09-10 11:34:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-10 11:34:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure sl_realloc_bufs [2019-09-10 11:34:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-10 11:34:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 11:34:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure sl_lock [2019-09-10 11:34:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2019-09-10 11:34:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2019-09-10 11:34:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure sl_encaps [2019-09-10 11:34:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-09-10 11:34:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 11:34:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure slip_write_wakeup [2019-09-10 11:34:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2019-09-10 11:34:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure sl_xmit [2019-09-10 11:34:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure sl_close [2019-09-10 11:34:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure sl_open [2019-09-10 11:34:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2019-09-10 11:34:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2019-09-10 11:34:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure sl_init [2019-09-10 11:34:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure sl_uninit [2019-09-10 11:34:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_netdev [2019-09-10 11:34:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure sl_setup [2019-09-10 11:34:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure slip_receive_buf [2019-09-10 11:34:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure sl_sync [2019-09-10 11:34:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure sl_alloc [2019-09-10 11:34:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure slip_open [2019-09-10 11:34:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_slip_open_18 [2019-09-10 11:34:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2019-09-10 11:34:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2019-09-10 11:34:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2019-09-10 11:34:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2019-09-10 11:34:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure slip_init [2019-09-10 11:34:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure slip_exit [2019-09-10 11:34:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 11:34:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 11:34:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2019-09-10 11:34:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 11:34:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 11:34:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 11:34:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-10 11:34:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 11:34:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 11:34:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 11:34:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 11:34:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 11:34:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-10 11:34:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-10 11:34:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-10 11:34:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-10 11:34:07,197 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 11:34:10,822 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 11:34:10,823 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 11:34:10,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:34:10 BoogieIcfgContainer [2019-09-10 11:34:10,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 11:34:10,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 11:34:10,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 11:34:10,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 11:34:10,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:34:02" (1/3) ... [2019-09-10 11:34:10,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245cf01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:34:10, skipping insertion in model container [2019-09-10 11:34:10,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:34:05" (2/3) ... [2019-09-10 11:34:10,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245cf01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:34:10, skipping insertion in model container [2019-09-10 11:34:10,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:34:10" (3/3) ... [2019-09-10 11:34:10,833 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-09-10 11:34:10,843 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 11:34:10,853 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 11:34:10,870 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 11:34:10,897 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 11:34:10,898 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 11:34:10,898 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 11:34:10,898 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 11:34:10,898 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 11:34:10,898 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 11:34:10,898 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 11:34:10,898 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 11:34:10,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states. [2019-09-10 11:34:10,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-09-10 11:34:10,968 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:10,969 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 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, 1, 1] [2019-09-10 11:34:10,973 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:10,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:10,979 INFO L82 PathProgramCache]: Analyzing trace with hash 535274995, now seen corresponding path program 1 times [2019-09-10 11:34:10,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:11,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:11,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:11,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:11,046 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2019-09-10 11:34:11,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:11,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:34:11,697 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:11,703 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:34:11,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:34:11,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:34:11,721 INFO L87 Difference]: Start difference. First operand 1451 states. Second operand 3 states. [2019-09-10 11:34:12,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:12,007 INFO L93 Difference]: Finished difference Result 2195 states and 2959 transitions. [2019-09-10 11:34:12,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:34:12,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-09-10 11:34:12,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:12,056 INFO L225 Difference]: With dead ends: 2195 [2019-09-10 11:34:12,056 INFO L226 Difference]: Without dead ends: 2082 [2019-09-10 11:34:12,059 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:34:12,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2019-09-10 11:34:12,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2082. [2019-09-10 11:34:12,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2082 states. [2019-09-10 11:34:12,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2803 transitions. [2019-09-10 11:34:12,296 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2803 transitions. Word has length 171 [2019-09-10 11:34:12,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:12,300 INFO L475 AbstractCegarLoop]: Abstraction has 2082 states and 2803 transitions. [2019-09-10 11:34:12,300 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:34:12,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2803 transitions. [2019-09-10 11:34:12,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-09-10 11:34:12,321 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:12,322 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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] [2019-09-10 11:34:12,322 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:12,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:12,323 INFO L82 PathProgramCache]: Analyzing trace with hash 698862750, now seen corresponding path program 1 times [2019-09-10 11:34:12,323 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:12,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:12,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:12,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:12,329 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:12,868 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2019-09-10 11:34:12,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:12,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 11:34:12,869 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:12,873 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 11:34:12,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 11:34:12,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 11:34:12,875 INFO L87 Difference]: Start difference. First operand 2082 states and 2803 transitions. Second operand 5 states. [2019-09-10 11:34:18,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:18,279 INFO L93 Difference]: Finished difference Result 2082 states and 2801 transitions. [2019-09-10 11:34:18,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 11:34:18,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 241 [2019-09-10 11:34:18,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:18,290 INFO L225 Difference]: With dead ends: 2082 [2019-09-10 11:34:18,290 INFO L226 Difference]: Without dead ends: 2082 [2019-09-10 11:34:18,291 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 11:34:18,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2019-09-10 11:34:18,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2082. [2019-09-10 11:34:18,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2082 states. [2019-09-10 11:34:18,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2801 transitions. [2019-09-10 11:34:18,358 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2801 transitions. Word has length 241 [2019-09-10 11:34:18,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:18,359 INFO L475 AbstractCegarLoop]: Abstraction has 2082 states and 2801 transitions. [2019-09-10 11:34:18,359 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 11:34:18,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2801 transitions. [2019-09-10 11:34:18,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-09-10 11:34:18,367 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:18,367 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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] [2019-09-10 11:34:18,368 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:18,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:18,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1719041316, now seen corresponding path program 1 times [2019-09-10 11:34:18,368 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:18,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:18,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:18,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:18,372 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:18,673 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2019-09-10 11:34:18,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:18,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 11:34:18,674 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:18,674 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 11:34:18,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 11:34:18,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 11:34:18,675 INFO L87 Difference]: Start difference. First operand 2082 states and 2801 transitions. Second operand 5 states. [2019-09-10 11:34:18,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:18,768 INFO L93 Difference]: Finished difference Result 2090 states and 2807 transitions. [2019-09-10 11:34:18,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 11:34:18,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 241 [2019-09-10 11:34:18,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:18,791 INFO L225 Difference]: With dead ends: 2090 [2019-09-10 11:34:18,792 INFO L226 Difference]: Without dead ends: 2082 [2019-09-10 11:34:18,792 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 11:34:18,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2019-09-10 11:34:18,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2082. [2019-09-10 11:34:18,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2082 states. [2019-09-10 11:34:18,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2799 transitions. [2019-09-10 11:34:18,857 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2799 transitions. Word has length 241 [2019-09-10 11:34:18,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:18,859 INFO L475 AbstractCegarLoop]: Abstraction has 2082 states and 2799 transitions. [2019-09-10 11:34:18,859 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 11:34:18,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2799 transitions. [2019-09-10 11:34:18,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-09-10 11:34:18,868 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:18,868 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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] [2019-09-10 11:34:18,868 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:18,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:18,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1934234600, now seen corresponding path program 1 times [2019-09-10 11:34:18,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:18,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:18,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:18,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:18,875 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:19,424 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2019-09-10 11:34:19,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:19,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 11:34:19,425 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:19,426 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 11:34:19,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 11:34:19,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-10 11:34:19,426 INFO L87 Difference]: Start difference. First operand 2082 states and 2799 transitions. Second operand 11 states. [2019-09-10 11:34:19,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:19,766 INFO L93 Difference]: Finished difference Result 2799 states and 3748 transitions. [2019-09-10 11:34:19,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-10 11:34:19,769 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 248 [2019-09-10 11:34:19,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:19,784 INFO L225 Difference]: With dead ends: 2799 [2019-09-10 11:34:19,785 INFO L226 Difference]: Without dead ends: 2785 [2019-09-10 11:34:19,786 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2019-09-10 11:34:19,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2019-09-10 11:34:19,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2784. [2019-09-10 11:34:19,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2784 states. [2019-09-10 11:34:19,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3732 transitions. [2019-09-10 11:34:19,891 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3732 transitions. Word has length 248 [2019-09-10 11:34:19,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:19,893 INFO L475 AbstractCegarLoop]: Abstraction has 2784 states and 3732 transitions. [2019-09-10 11:34:19,893 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 11:34:19,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3732 transitions. [2019-09-10 11:34:19,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-09-10 11:34:19,909 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:19,910 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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] [2019-09-10 11:34:19,910 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:19,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:19,911 INFO L82 PathProgramCache]: Analyzing trace with hash -506387159, now seen corresponding path program 1 times [2019-09-10 11:34:19,911 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:19,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:19,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:19,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:19,916 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:20,245 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2019-09-10 11:34:20,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:20,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 11:34:20,246 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:20,246 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 11:34:20,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 11:34:20,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 11:34:20,247 INFO L87 Difference]: Start difference. First operand 2784 states and 3732 transitions. Second operand 7 states. [2019-09-10 11:34:20,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:20,354 INFO L93 Difference]: Finished difference Result 2795 states and 3743 transitions. [2019-09-10 11:34:20,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 11:34:20,355 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 248 [2019-09-10 11:34:20,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:20,370 INFO L225 Difference]: With dead ends: 2795 [2019-09-10 11:34:20,370 INFO L226 Difference]: Without dead ends: 2795 [2019-09-10 11:34:20,371 INFO L628 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 [2019-09-10 11:34:20,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2019-09-10 11:34:20,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2792. [2019-09-10 11:34:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2792 states. [2019-09-10 11:34:20,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 3740 transitions. [2019-09-10 11:34:20,463 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 3740 transitions. Word has length 248 [2019-09-10 11:34:20,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:20,469 INFO L475 AbstractCegarLoop]: Abstraction has 2792 states and 3740 transitions. [2019-09-10 11:34:20,469 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 11:34:20,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 3740 transitions. [2019-09-10 11:34:20,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2019-09-10 11:34:20,490 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:20,491 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 11:34:20,491 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:20,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:20,491 INFO L82 PathProgramCache]: Analyzing trace with hash -435488360, now seen corresponding path program 1 times [2019-09-10 11:34:20,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:20,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:20,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:20,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:20,495 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:20,849 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2019-09-10 11:34:20,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:20,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 11:34:20,850 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:20,851 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 11:34:20,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 11:34:20,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 11:34:20,852 INFO L87 Difference]: Start difference. First operand 2792 states and 3740 transitions. Second operand 8 states. [2019-09-10 11:34:21,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:21,022 INFO L93 Difference]: Finished difference Result 2823 states and 3777 transitions. [2019-09-10 11:34:21,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 11:34:21,023 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 264 [2019-09-10 11:34:21,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:21,041 INFO L225 Difference]: With dead ends: 2823 [2019-09-10 11:34:21,041 INFO L226 Difference]: Without dead ends: 2823 [2019-09-10 11:34:21,042 INFO L628 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 [2019-09-10 11:34:21,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2019-09-10 11:34:21,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 2794. [2019-09-10 11:34:21,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2794 states. [2019-09-10 11:34:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3743 transitions. [2019-09-10 11:34:21,147 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3743 transitions. Word has length 264 [2019-09-10 11:34:21,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:21,148 INFO L475 AbstractCegarLoop]: Abstraction has 2794 states and 3743 transitions. [2019-09-10 11:34:21,148 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 11:34:21,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3743 transitions. [2019-09-10 11:34:21,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2019-09-10 11:34:21,169 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:21,170 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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] [2019-09-10 11:34:21,170 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:21,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:21,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1391633158, now seen corresponding path program 1 times [2019-09-10 11:34:21,171 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:21,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:21,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:21,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:21,176 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:21,522 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2019-09-10 11:34:21,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:21,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 11:34:21,522 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:21,524 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 11:34:21,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 11:34:21,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 11:34:21,525 INFO L87 Difference]: Start difference. First operand 2794 states and 3743 transitions. Second operand 4 states. [2019-09-10 11:34:24,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:24,380 INFO L93 Difference]: Finished difference Result 2795 states and 3743 transitions. [2019-09-10 11:34:24,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 11:34:24,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 298 [2019-09-10 11:34:24,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:24,397 INFO L225 Difference]: With dead ends: 2795 [2019-09-10 11:34:24,398 INFO L226 Difference]: Without dead ends: 2795 [2019-09-10 11:34:24,398 INFO L628 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 [2019-09-10 11:34:24,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2019-09-10 11:34:24,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2794. [2019-09-10 11:34:24,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2794 states. [2019-09-10 11:34:24,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3742 transitions. [2019-09-10 11:34:24,470 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3742 transitions. Word has length 298 [2019-09-10 11:34:24,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:24,471 INFO L475 AbstractCegarLoop]: Abstraction has 2794 states and 3742 transitions. [2019-09-10 11:34:24,471 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 11:34:24,471 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3742 transitions. [2019-09-10 11:34:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2019-09-10 11:34:24,485 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:24,486 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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] [2019-09-10 11:34:24,486 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:24,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:24,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1540873291, now seen corresponding path program 1 times [2019-09-10 11:34:24,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:24,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:24,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:24,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:24,490 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2019-09-10 11:34:24,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:24,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:34:24,715 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:24,716 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:34:24,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:34:24,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:34:24,717 INFO L87 Difference]: Start difference. First operand 2794 states and 3742 transitions. Second operand 3 states. [2019-09-10 11:34:24,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:24,763 INFO L93 Difference]: Finished difference Result 2797 states and 3736 transitions. [2019-09-10 11:34:24,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:34:24,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2019-09-10 11:34:24,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:24,780 INFO L225 Difference]: With dead ends: 2797 [2019-09-10 11:34:24,780 INFO L226 Difference]: Without dead ends: 2797 [2019-09-10 11:34:24,781 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:34:24,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2019-09-10 11:34:24,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2794. [2019-09-10 11:34:24,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2794 states. [2019-09-10 11:34:24,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3733 transitions. [2019-09-10 11:34:24,923 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3733 transitions. Word has length 300 [2019-09-10 11:34:24,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:24,925 INFO L475 AbstractCegarLoop]: Abstraction has 2794 states and 3733 transitions. [2019-09-10 11:34:24,925 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:34:24,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3733 transitions. [2019-09-10 11:34:24,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2019-09-10 11:34:24,940 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:24,940 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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] [2019-09-10 11:34:24,941 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:24,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:24,941 INFO L82 PathProgramCache]: Analyzing trace with hash 766776102, now seen corresponding path program 1 times [2019-09-10 11:34:24,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:24,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:24,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:24,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:24,944 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:25,264 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2019-09-10 11:34:25,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:25,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 11:34:25,265 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:25,266 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 11:34:25,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 11:34:25,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 11:34:25,266 INFO L87 Difference]: Start difference. First operand 2794 states and 3733 transitions. Second operand 5 states. [2019-09-10 11:34:25,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:25,349 INFO L93 Difference]: Finished difference Result 2802 states and 3742 transitions. [2019-09-10 11:34:25,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 11:34:25,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 303 [2019-09-10 11:34:25,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:25,365 INFO L225 Difference]: With dead ends: 2802 [2019-09-10 11:34:25,365 INFO L226 Difference]: Without dead ends: 2802 [2019-09-10 11:34:25,365 INFO L628 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 [2019-09-10 11:34:25,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2802 states. [2019-09-10 11:34:25,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2802 to 2798. [2019-09-10 11:34:25,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2798 states. [2019-09-10 11:34:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3737 transitions. [2019-09-10 11:34:25,447 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3737 transitions. Word has length 303 [2019-09-10 11:34:25,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:25,447 INFO L475 AbstractCegarLoop]: Abstraction has 2798 states and 3737 transitions. [2019-09-10 11:34:25,448 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 11:34:25,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3737 transitions. [2019-09-10 11:34:25,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-09-10 11:34:25,463 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:25,463 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 11:34:25,464 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:25,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:25,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1931845078, now seen corresponding path program 1 times [2019-09-10 11:34:25,464 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:25,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:25,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:25,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:25,469 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:25,709 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2019-09-10 11:34:25,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:25,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:34:25,710 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:25,710 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:34:25,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:34:25,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:34:25,711 INFO L87 Difference]: Start difference. First operand 2798 states and 3737 transitions. Second operand 3 states. [2019-09-10 11:34:25,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:25,830 INFO L93 Difference]: Finished difference Result 2801 states and 3740 transitions. [2019-09-10 11:34:25,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:34:25,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 330 [2019-09-10 11:34:25,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:25,862 INFO L225 Difference]: With dead ends: 2801 [2019-09-10 11:34:25,863 INFO L226 Difference]: Without dead ends: 2801 [2019-09-10 11:34:25,863 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:34:25,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2019-09-10 11:34:25,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2799. [2019-09-10 11:34:25,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2799 states. [2019-09-10 11:34:25,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 3738 transitions. [2019-09-10 11:34:25,941 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 3738 transitions. Word has length 330 [2019-09-10 11:34:25,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:25,941 INFO L475 AbstractCegarLoop]: Abstraction has 2799 states and 3738 transitions. [2019-09-10 11:34:25,941 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:34:25,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 3738 transitions. [2019-09-10 11:34:25,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2019-09-10 11:34:25,955 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:25,955 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 11:34:25,956 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:25,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:25,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1217551191, now seen corresponding path program 1 times [2019-09-10 11:34:25,956 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:25,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:25,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:25,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:25,960 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2019-09-10 11:34:26,308 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:26,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 11:34:26,309 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:26,309 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 11:34:26,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 11:34:26,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:34:26,310 INFO L87 Difference]: Start difference. First operand 2799 states and 3738 transitions. Second operand 3 states. [2019-09-10 11:34:26,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:26,370 INFO L93 Difference]: Finished difference Result 2790 states and 3725 transitions. [2019-09-10 11:34:26,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 11:34:26,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 332 [2019-09-10 11:34:26,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:26,383 INFO L225 Difference]: With dead ends: 2790 [2019-09-10 11:34:26,383 INFO L226 Difference]: Without dead ends: 2790 [2019-09-10 11:34:26,384 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 11:34:26,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2019-09-10 11:34:26,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 2785. [2019-09-10 11:34:26,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2785 states. [2019-09-10 11:34:26,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 3719 transitions. [2019-09-10 11:34:26,456 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 3719 transitions. Word has length 332 [2019-09-10 11:34:26,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:26,457 INFO L475 AbstractCegarLoop]: Abstraction has 2785 states and 3719 transitions. [2019-09-10 11:34:26,457 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 11:34:26,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 3719 transitions. [2019-09-10 11:34:26,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2019-09-10 11:34:26,472 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:26,472 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 11:34:26,472 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:26,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:26,473 INFO L82 PathProgramCache]: Analyzing trace with hash 969971693, now seen corresponding path program 1 times [2019-09-10 11:34:26,473 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:26,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:26,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:26,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:26,477 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:26,804 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2019-09-10 11:34:26,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 11:34:26,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 11:34:26,805 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:26,806 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 11:34:26,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 11:34:26,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 11:34:26,807 INFO L87 Difference]: Start difference. First operand 2785 states and 3719 transitions. Second operand 5 states. [2019-09-10 11:34:28,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:28,199 INFO L93 Difference]: Finished difference Result 2798 states and 3738 transitions. [2019-09-10 11:34:28,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 11:34:28,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 343 [2019-09-10 11:34:28,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:28,210 INFO L225 Difference]: With dead ends: 2798 [2019-09-10 11:34:28,210 INFO L226 Difference]: Without dead ends: 2798 [2019-09-10 11:34:28,211 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 11:34:28,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2019-09-10 11:34:28,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2786. [2019-09-10 11:34:28,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2786 states. [2019-09-10 11:34:28,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3720 transitions. [2019-09-10 11:34:28,275 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3720 transitions. Word has length 343 [2019-09-10 11:34:28,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:28,275 INFO L475 AbstractCegarLoop]: Abstraction has 2786 states and 3720 transitions. [2019-09-10 11:34:28,276 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 11:34:28,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3720 transitions. [2019-09-10 11:34:28,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2019-09-10 11:34:28,291 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 11:34:28,291 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 11:34:28,292 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 11:34:28,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:28,292 INFO L82 PathProgramCache]: Analyzing trace with hash -574530098, now seen corresponding path program 1 times [2019-09-10 11:34:28,292 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 11:34:28,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:28,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 11:34:28,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 11:34:28,295 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 11:34:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 11:34:29,163 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-09-10 11:34:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2019-09-10 11:34:29,272 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 11:34:29,273 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 11:34:29,274 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 346 with the following transitions: [2019-09-10 11:34:29,277 INFO L207 CegarAbsIntRunner]: [6], [7], [196], [199], [224], [226], [227], [228], [233], [235], [237], [241], [243], [249], [251], [252], [253], [254], [260], [261], [262], [263], [269], [273], [275], [278], [284], [291], [308], [312], [314], [318], [323], [325], [327], [329], [331], [332], [358], [363], [368], [373], [376], [387], [388], [424], [428], [429], [430], [432], [433], [591], [592], [631], [764], [766], [770], [774], [777], [780], [788], [790], [792], [797], [799], [801], [803], [824], [826], [832], [834], [840], [843], [851], [852], [1048], [1050], [1051], [1052], [1058], [1059], [1060], [1062], [1066], [1068], [1069], [1167], [1168], [1197], [1199], [1200], [1239], [1240], [1630], [1632], [1633], [1636], [1638], [1640], [1642], [1644], [1646], [1649], [1651], [1653], [1655], [1657], [1659], [1661], [1663], [1868], [1880], [1883], [1886], [1898], [1901], [1904], [1906], [1911], [1914], [1916], [1939], [1942], [1945], [1966], [1987], [2000], [2013], [2016], [2019], [2190], [2191], [2326], [2327], [2328], [2514], [2515], [2525], [2526], [2644], [2646], [2647], [2648], [2650], [2651], [2692], [2693], [2719], [2721], [2724], [2752], [2756], [2927], [2931], [2932], [2933], [2934], [2935], [2936], [2947], [2948], [2949], [2950], [2951], [2952], [2953], [2954], [2955], [2956], [2957], [2958], [2989], [2990], [3029], [3030], [3031], [3032], [3033], [3034], [3035], [3036], [3037], [3038], [3039], [3040], [3041], [3042], [3043], [3044], [3055], [3056], [3091], [3092], [3093], [3094], [3095], [3097], [3098], [3131], [3132], [3201], [3202], [3203], [3204], [3205], [3206], [3207], [3208], [3209], [3210], [3211], [3212], [3213], [3214], [3215], [3216], [3217], [3218], [3219], [3220], [3221], [3222], [3223], [3224], [3225], [3226], [3227], [3228], [3267], [3268], [3269], [3270], [3271], [3272], [3287], [3457], [3458], [3459], [3460], [3513], [3514], [3515] [2019-09-10 11:34:29,346 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 11:34:29,346 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 11:34:29,441 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 11:34:29,442 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 104 root evaluator evaluations with a maximum evaluation depth of 0. Performed 104 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 206 variables. [2019-09-10 11:34:29,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 11:34:29,447 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 11:34:29,536 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 11:34:29,536 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 11:34:29,544 INFO L420 sIntCurrentIteration]: We unified 344 AI predicates to 344 [2019-09-10 11:34:29,544 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 11:34:29,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 11:34:29,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-10 11:34:29,546 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 11:34:29,546 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 11:34:29,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 11:34:29,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 11:34:29,547 INFO L87 Difference]: Start difference. First operand 2786 states and 3720 transitions. Second operand 2 states. [2019-09-10 11:34:29,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 11:34:29,548 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 11:34:29,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 11:34:29,548 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 345 [2019-09-10 11:34:29,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 11:34:29,548 INFO L225 Difference]: With dead ends: 2 [2019-09-10 11:34:29,549 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 11:34:29,549 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 11:34:29,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 11:34:29,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 11:34:29,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 11:34:29,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 11:34:29,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 345 [2019-09-10 11:34:29,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 11:34:29,550 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 11:34:29,550 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 11:34:29,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 11:34:29,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 11:34:29,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:34:29 BoogieIcfgContainer [2019-09-10 11:34:29,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 11:34:29,557 INFO L168 Benchmark]: Toolchain (without parser) took 26813.11 ms. Allocated memory was 135.8 MB in the beginning and 802.2 MB in the end (delta: 666.4 MB). Free memory was 80.2 MB in the beginning and 393.1 MB in the end (delta: -312.9 MB). Peak memory consumption was 353.5 MB. Max. memory is 7.1 GB. [2019-09-10 11:34:29,558 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 135.8 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-10 11:34:29,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2735.24 ms. Allocated memory was 135.8 MB in the beginning and 264.8 MB in the end (delta: 129.0 MB). Free memory was 80.0 MB in the beginning and 168.2 MB in the end (delta: -88.3 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. [2019-09-10 11:34:29,560 INFO L168 Benchmark]: Boogie Preprocessor took 277.99 ms. Allocated memory is still 264.8 MB. Free memory was 168.2 MB in the beginning and 149.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2019-09-10 11:34:29,561 INFO L168 Benchmark]: RCFGBuilder took 5064.56 ms. Allocated memory was 264.8 MB in the beginning and 345.0 MB in the end (delta: 80.2 MB). Free memory was 149.4 MB in the beginning and 255.0 MB in the end (delta: -105.6 MB). Peak memory consumption was 153.5 MB. Max. memory is 7.1 GB. [2019-09-10 11:34:29,562 INFO L168 Benchmark]: TraceAbstraction took 18729.77 ms. Allocated memory was 345.0 MB in the beginning and 802.2 MB in the end (delta: 457.2 MB). Free memory was 255.0 MB in the beginning and 393.1 MB in the end (delta: -138.1 MB). Peak memory consumption was 319.1 MB. Max. memory is 7.1 GB. [2019-09-10 11:34:29,566 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 135.8 MB. Free memory was 109.1 MB in the beginning and 108.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2735.24 ms. Allocated memory was 135.8 MB in the beginning and 264.8 MB in the end (delta: 129.0 MB). Free memory was 80.0 MB in the beginning and 168.2 MB in the end (delta: -88.3 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 277.99 ms. Allocated memory is still 264.8 MB. Free memory was 168.2 MB in the beginning and 149.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5064.56 ms. Allocated memory was 264.8 MB in the beginning and 345.0 MB in the end (delta: 80.2 MB). Free memory was 149.4 MB in the beginning and 255.0 MB in the end (delta: -105.6 MB). Peak memory consumption was 153.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18729.77 ms. Allocated memory was 345.0 MB in the beginning and 802.2 MB in the end (delta: 457.2 MB). Free memory was 255.0 MB in the beginning and 393.1 MB in the end (delta: -138.1 MB). Peak memory consumption was 319.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7649]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 157 procedures, 1493 locations, 1 error locations. SAFE Result, 18.6s OverallTime, 13 OverallIterations, 7 TraceHistogramMax, 11.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23579 SDtfs, 9148 SDslu, 63443 SDs, 0 SdLazy, 3807 SolverSat, 1239 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 422 GetRequests, 370 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2799occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.296511627906977 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 60 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 3664 NumberOfCodeBlocks, 3664 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3651 ConstructedInterpolants, 0 QuantifiedInterpolants, 1361855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 4854/4896 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...