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-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 09:41:17,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 09:41:17,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 09:41:17,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 09:41:17,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 09:41:17,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 09:41:17,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 09:41:17,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 09:41:17,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 09:41:17,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 09:41:17,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 09:41:17,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 09:41:17,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 09:41:17,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 09:41:17,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 09:41:17,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 09:41:17,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 09:41:17,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 09:41:17,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 09:41:17,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 09:41:17,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 09:41:17,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 09:41:17,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 09:41:17,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 09:41:17,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 09:41:17,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 09:41:17,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 09:41:17,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 09:41:17,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 09:41:17,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 09:41:17,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 09:41:17,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 09:41:17,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 09:41:17,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 09:41:17,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 09:41:17,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 09:41:17,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 09:41:17,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 09:41:17,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 09:41:17,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 09:41:17,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 09:41:17,924 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 09:41:17,938 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 09:41:17,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 09:41:17,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 09:41:17,939 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 09:41:17,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 09:41:17,940 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 09:41:17,940 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 09:41:17,941 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 09:41:17,941 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 09:41:17,941 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 09:41:17,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 09:41:17,942 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 09:41:17,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 09:41:17,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 09:41:17,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 09:41:17,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 09:41:17,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 09:41:17,943 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 09:41:17,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 09:41:17,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 09:41:17,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 09:41:17,944 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 09:41:17,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 09:41:17,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 09:41:17,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 09:41:17,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 09:41:17,945 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 09:41:17,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 09:41:17,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 09:41:17,946 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 09:41:17,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 09:41:17,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 09:41:17,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 09:41:17,989 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 09:41:17,990 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 09:41:17,990 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2019-09-10 09:41:18,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ce66e544/569cbf43c5af4eeb9ad0212de23c4276/FLAGdb7bb2a0f [2019-09-10 09:41:18,801 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 09:41:18,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2019-09-10 09:41:18,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ce66e544/569cbf43c5af4eeb9ad0212de23c4276/FLAGdb7bb2a0f [2019-09-10 09:41:18,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ce66e544/569cbf43c5af4eeb9ad0212de23c4276 [2019-09-10 09:41:18,873 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 09:41:18,874 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 09:41:18,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 09:41:18,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 09:41:18,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 09:41:18,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 09:41:18" (1/1) ... [2019-09-10 09:41:18,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dcbeeef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:18, skipping insertion in model container [2019-09-10 09:41:18,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 09:41:18" (1/1) ... [2019-09-10 09:41:18,889 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 09:41:19,014 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 09:41:20,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 09:41:20,610 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 09:41:20,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 09:41:21,119 INFO L192 MainTranslator]: Completed translation [2019-09-10 09:41:21,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:21 WrapperNode [2019-09-10 09:41:21,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 09:41:21,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 09:41:21,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 09:41:21,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 09:41:21,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:21" (1/1) ... [2019-09-10 09:41:21,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:21" (1/1) ... [2019-09-10 09:41:21,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:21" (1/1) ... [2019-09-10 09:41:21,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:21" (1/1) ... [2019-09-10 09:41:21,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:21" (1/1) ... [2019-09-10 09:41:21,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:21" (1/1) ... [2019-09-10 09:41:21,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:21" (1/1) ... [2019-09-10 09:41:21,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 09:41:21,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 09:41:21,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 09:41:21,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 09:41:21,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:21" (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 09:41:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 09:41:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 09:41:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-09-10 09:41:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-10 09:41:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-10 09:41:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-09-10 09:41:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-09-10 09:41:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-09-10 09:41:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2019-09-10 09:41:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-10 09:41:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-09-10 09:41:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-09-10 09:41:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure get_order [2019-09-10 09:41:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-10 09:41:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-09-10 09:41:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-09-10 09:41:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del [2019-09-10 09:41:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-09-10 09:41:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-09-10 09:41:21,509 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-09-10 09:41:21,509 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-10 09:41:21,509 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-09-10 09:41:21,510 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-09-10 09:41:21,510 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-10 09:41:21,510 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2019-09-10 09:41:21,510 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2019-09-10 09:41:21,510 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-09-10 09:41:21,510 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-09-10 09:41:21,510 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemleak_alloc [2019-09-10 09:41:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2019-09-10 09:41:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_index [2019-09-10 09:41:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_slab [2019-09-10 09:41:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-10 09:41:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-09-10 09:41:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_large [2019-09-10 09:41:21,512 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-09-10 09:41:21,512 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-09-10 09:41:21,512 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-09-10 09:41:21,512 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2019-09-10 09:41:21,512 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2019-09-10 09:41:21,513 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2019-09-10 09:41:21,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2019-09-10 09:41:21,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2019-09-10 09:41:21,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_alloc_request [2019-09-10 09:41:21,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2019-09-10 09:41:21,514 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2019-09-10 09:41:21,514 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2019-09-10 09:41:21,514 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2019-09-10 09:41:21,514 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_set_selfpowered [2019-09-10 09:41:21,514 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2019-09-10 09:41:21,514 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_controller_number [2019-09-10 09:41:21,514 INFO L138 BoogieDeclarations]: Found implementation of procedure utf8_to_utf16le [2019-09-10 09:41:21,515 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_get_string [2019-09-10 09:41:21,515 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_descriptor_fillbuf [2019-09-10 09:41:21,515 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_config_buf [2019-09-10 09:41:21,515 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_copy_descriptors [2019-09-10 09:41:21,515 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_endpoint [2019-09-10 09:41:21,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ep_matches [2019-09-10 09:41:21,516 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2019-09-10 09:41:21,516 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig_reset [2019-09-10 09:41:21,516 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2019-09-10 09:41:21,516 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2019-09-10 09:41:21,516 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2019-09-10 09:41:21,516 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_complete [2019-09-10 09:41:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2019-09-10 09:41:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2019-09-10 09:41:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2019-09-10 09:41:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_read [2019-09-10 09:41:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2019-09-10 09:41:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2019-09-10 09:41:21,518 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2019-09-10 09:41:21,518 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_ioctl [2019-09-10 09:41:21,518 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2019-09-10 09:41:21,519 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2019-09-10 09:41:21,519 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_set_config [2019-09-10 09:41:21,519 INFO L138 BoogieDeclarations]: Found implementation of procedure config_buf [2019-09-10 09:41:21,519 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2019-09-10 09:41:21,520 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2019-09-10 09:41:21,521 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2019-09-10 09:41:21,521 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2019-09-10 09:41:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_disconnect [2019-09-10 09:41:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2019-09-10 09:41:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2019-09-10 09:41:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-10 09:41:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 09:41:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 09:41:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-09-10 09:41:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-09-10 09:41:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_chrdev_region_5 [2019-09-10 09:41:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_6 [2019-09-10 09:41:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_register_driver_7 [2019-09-10 09:41:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_8 [2019-09-10 09:41:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_9 [2019-09-10 09:41:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_gadget_unregister_driver_10 [2019-09-10 09:41:21,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region_11 [2019-09-10 09:41:21,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_class_destroy_12 [2019-09-10 09:41:21,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-10 09:41:21,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-10 09:41:21,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2019-09-10 09:41:21,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-10 09:41:21,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-10 09:41:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-10 09:41:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-10 09:41:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-10 09:41:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_create_class [2019-09-10 09:41:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_class [2019-09-10 09:41:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2019-09-10 09:41:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_region [2019-09-10 09:41:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2019-09-10 09:41:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_usb_gadget [2019-09-10 09:41:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_usb_gadget [2019-09-10 09:41:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-10 09:41:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-09-10 09:41:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-10 09:41:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-09-10 09:41:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-09-10 09:41:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-10 09:41:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-09-10 09:41:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-09-10 09:41:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-09-10 09:41:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-09-10 09:41:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-09-10 09:41:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-09-10 09:41:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-10 09:41:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2019-09-10 09:41:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2019-09-10 09:41:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2019-09-10 09:41:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2019-09-10 09:41:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-09-10 09:41:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-09-10 09:41:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-10 09:41:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-10 09:41:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-10 09:41:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-09-10 09:41:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-09-10 09:41:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-09-10 09:41:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-09-10 09:41:21,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-09-10 09:41:21,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-09-10 09:41:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-10 09:41:21,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-10 09:41:21,539 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-09-10 09:41:21,539 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2019-09-10 09:41:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-09-10 09:41:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-09-10 09:41:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-10 09:41:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-09-10 09:41:21,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-09-10 09:41:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-09-10 09:41:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-09-10 09:41:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-09-10 09:41:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2019-09-10 09:41:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_register_driver [2019-09-10 09:41:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_unregister_driver [2019-09-10 09:41:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-09-10 09:41:21,547 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-10 09:41:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2019-09-10 09:41:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-10 09:41:21,548 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-10 09:41:21,549 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-10 09:41:21,549 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-10 09:41:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 09:41:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-10 09:41:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-10 09:41:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-10 09:41:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_create_class [2019-09-10 09:41:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2019-09-10 09:41:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_region [2019-09-10 09:41:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2019-09-10 09:41:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_usb_gadget [2019-09-10 09:41:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_usb_gadget [2019-09-10 09:41:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-09-10 09:41:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-09-10 09:41:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-10 09:41:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-09-10 09:41:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-09-10 09:41:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-09-10 09:41:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-09-10 09:41:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-09-10 09:41:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-09-10 09:41:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-10 09:41:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-09-10 09:41:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-09-10 09:41:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-09-10 09:41:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-09-10 09:41:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure get_order [2019-09-10 09:41:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-09-10 09:41:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-09-10 09:41:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-10 09:41:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 09:41:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-09-10 09:41:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-09-10 09:41:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 09:41:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-09-10 09:41:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del [2019-09-10 09:41:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-09-10 09:41:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-09-10 09:41:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-09-10 09:41:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-09-10 09:41:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2019-09-10 09:41:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-10 09:41:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-09-10 09:41:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-09-10 09:41:21,554 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-09-10 09:41:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-10 09:41:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-10 09:41:21,555 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-09-10 09:41:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-09-10 09:41:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-10 09:41:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-10 09:41:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-09-10 09:41:21,557 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-09-10 09:41:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-09-10 09:41:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-09-10 09:41:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-09-10 09:41:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-09-10 09:41:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-10 09:41:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-09-10 09:41:21,558 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-09-10 09:41:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2019-09-10 09:41:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2019-09-10 09:41:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-09-10 09:41:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-09-10 09:41:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-09-10 09:41:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-10 09:41:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure kmemleak_alloc [2019-09-10 09:41:21,559 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2019-09-10 09:41:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 09:41:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~int~X~~gfp_t~0~TO~VOID [2019-09-10 09:41:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 09:41:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_index [2019-09-10 09:41:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_slab [2019-09-10 09:41:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 09:41:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 09:41:21,560 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 09:41:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-10 09:41:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 09:41:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-09-10 09:41:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2019-09-10 09:41:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_large [2019-09-10 09:41:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-09-10 09:41:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-09-10 09:41:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-09-10 09:41:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-09-10 09:41:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-09-10 09:41:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2019-09-10 09:41:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-09-10 09:41:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_6 [2019-09-10 09:41:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_8 [2019-09-10 09:41:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_class_destroy_12 [2019-09-10 09:41:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-10 09:41:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-10 09:41:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-09-10 09:41:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-09-10 09:41:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-10 09:41:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-09-10 09:41:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2019-09-10 09:41:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_chrdev_region_5 [2019-09-10 09:41:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2019-09-10 09:41:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_9 [2019-09-10 09:41:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region_11 [2019-09-10 09:41:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2019-09-10 09:41:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2019-09-10 09:41:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2019-09-10 09:41:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2019-09-10 09:41:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2019-09-10 09:41:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2019-09-10 09:41:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 09:41:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2019-09-10 09:41:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-09-10 09:41:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2019-09-10 09:41:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-09-10 09:41:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_alloc_request [2019-09-10 09:41:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~gfp_t~0~TO~$Pointer$ [2019-09-10 09:41:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2019-09-10 09:41:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-09-10 09:41:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2019-09-10 09:41:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~gfp_t~0~TO~int [2019-09-10 09:41:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2019-09-10 09:41:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2019-09-10 09:41:21,573 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_set_selfpowered [2019-09-10 09:41:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2019-09-10 09:41:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2019-09-10 09:41:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_register_driver [2019-09-10 09:41:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_register_driver_7 [2019-09-10 09:41:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_unregister_driver [2019-09-10 09:41:21,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_gadget_unregister_driver_10 [2019-09-10 09:41:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_get_string [2019-09-10 09:41:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_descriptor_fillbuf [2019-09-10 09:41:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_config_buf [2019-09-10 09:41:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_copy_descriptors [2019-09-10 09:41:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_endpoint [2019-09-10 09:41:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2019-09-10 09:41:21,575 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig_reset [2019-09-10 09:41:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_controller_number [2019-09-10 09:41:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure utf8_to_utf16le [2019-09-10 09:41:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-10 09:41:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-10 09:41:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-10 09:41:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure ep_matches [2019-09-10 09:41:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2019-09-10 09:41:21,576 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2019-09-10 09:41:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2019-09-10 09:41:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure tx_complete [2019-09-10 09:41:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2019-09-10 09:41:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2019-09-10 09:41:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2019-09-10 09:41:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure printer_read [2019-09-10 09:41:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 09:41:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2019-09-10 09:41:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2019-09-10 09:41:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2019-09-10 09:41:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure printer_ioctl [2019-09-10 09:41:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2019-09-10 09:41:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2019-09-10 09:41:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure printer_set_config [2019-09-10 09:41:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure config_buf [2019-09-10 09:41:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2019-09-10 09:41:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2019-09-10 09:41:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2019-09-10 09:41:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2019-09-10 09:41:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure printer_disconnect [2019-09-10 09:41:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2019-09-10 09:41:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2019-09-10 09:41:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 09:41:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 09:41:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-10 09:41:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-09-10 09:41:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-10 09:41:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-09-10 09:41:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 09:41:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-10 09:41:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-10 09:41:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-10 09:41:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2019-09-10 09:41:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-10 09:41:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-10 09:41:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_class [2019-09-10 09:41:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-10 09:41:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-10 09:41:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-10 09:41:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 09:41:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 09:41:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 09:41:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 09:41:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 09:41:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-10 09:41:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-10 09:41:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-10 09:41:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-10 09:41:22,759 INFO L684 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-10 09:41:29,656 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 09:41:29,657 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 09:41:29,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 09:41:29 BoogieIcfgContainer [2019-09-10 09:41:29,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 09:41:29,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 09:41:29,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 09:41:29,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 09:41:29,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 09:41:18" (1/3) ... [2019-09-10 09:41:29,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c137998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 09:41:29, skipping insertion in model container [2019-09-10 09:41:29,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 09:41:21" (2/3) ... [2019-09-10 09:41:29,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c137998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 09:41:29, skipping insertion in model container [2019-09-10 09:41:29,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 09:41:29" (3/3) ... [2019-09-10 09:41:29,666 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2019-09-10 09:41:29,676 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 09:41:29,685 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 09:41:29,703 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 09:41:29,730 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 09:41:29,730 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 09:41:29,730 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 09:41:29,730 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 09:41:29,730 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 09:41:29,731 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 09:41:29,731 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 09:41:29,731 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 09:41:29,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states. [2019-09-10 09:41:29,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-09-10 09:41:29,780 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:29,781 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 09:41:29,782 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:29,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:29,788 INFO L82 PathProgramCache]: Analyzing trace with hash 720613046, now seen corresponding path program 1 times [2019-09-10 09:41:29,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:29,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:29,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:29,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:29,873 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:41:30,756 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:30,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:41:30,757 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:30,762 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:41:30,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:41:30,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:41:30,781 INFO L87 Difference]: Start difference. First operand 1542 states. Second operand 3 states. [2019-09-10 09:41:31,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:31,098 INFO L93 Difference]: Finished difference Result 2672 states and 3666 transitions. [2019-09-10 09:41:31,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:41:31,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-09-10 09:41:31,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:31,176 INFO L225 Difference]: With dead ends: 2672 [2019-09-10 09:41:31,176 INFO L226 Difference]: Without dead ends: 2662 [2019-09-10 09:41:31,178 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 09:41:31,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2019-09-10 09:41:31,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2657. [2019-09-10 09:41:31,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2657 states. [2019-09-10 09:41:31,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 3649 transitions. [2019-09-10 09:41:31,444 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 3649 transitions. Word has length 29 [2019-09-10 09:41:31,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:31,445 INFO L475 AbstractCegarLoop]: Abstraction has 2657 states and 3649 transitions. [2019-09-10 09:41:31,445 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:41:31,445 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 3649 transitions. [2019-09-10 09:41:31,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-09-10 09:41:31,447 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:31,447 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 09:41:31,447 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:31,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:31,448 INFO L82 PathProgramCache]: Analyzing trace with hash 861919949, now seen corresponding path program 1 times [2019-09-10 09:41:31,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:31,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:31,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:31,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:31,452 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:31,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:41:31,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:31,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:41:31,839 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:31,846 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:41:31,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:41:31,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:41:31,847 INFO L87 Difference]: Start difference. First operand 2657 states and 3649 transitions. Second operand 3 states. [2019-09-10 09:41:31,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:31,960 INFO L93 Difference]: Finished difference Result 3905 states and 5376 transitions. [2019-09-10 09:41:31,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:41:31,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2019-09-10 09:41:31,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:31,989 INFO L225 Difference]: With dead ends: 3905 [2019-09-10 09:41:31,989 INFO L226 Difference]: Without dead ends: 3905 [2019-09-10 09:41:31,990 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 09:41:31,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3905 states. [2019-09-10 09:41:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3905 to 3892. [2019-09-10 09:41:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3892 states. [2019-09-10 09:41:32,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3892 states to 3892 states and 5364 transitions. [2019-09-10 09:41:32,185 INFO L78 Accepts]: Start accepts. Automaton has 3892 states and 5364 transitions. Word has length 30 [2019-09-10 09:41:32,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:32,185 INFO L475 AbstractCegarLoop]: Abstraction has 3892 states and 5364 transitions. [2019-09-10 09:41:32,186 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:41:32,186 INFO L276 IsEmpty]: Start isEmpty. Operand 3892 states and 5364 transitions. [2019-09-10 09:41:32,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-10 09:41:32,188 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:32,188 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 09:41:32,188 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:32,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:32,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1242276972, now seen corresponding path program 1 times [2019-09-10 09:41:32,189 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:32,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:32,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:32,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:32,192 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:41:33,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:33,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 09:41:33,023 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:33,024 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 09:41:33,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 09:41:33,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 09:41:33,025 INFO L87 Difference]: Start difference. First operand 3892 states and 5364 transitions. Second operand 7 states. [2019-09-10 09:41:33,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:33,126 INFO L93 Difference]: Finished difference Result 3882 states and 5353 transitions. [2019-09-10 09:41:33,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 09:41:33,127 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2019-09-10 09:41:33,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:33,155 INFO L225 Difference]: With dead ends: 3882 [2019-09-10 09:41:33,155 INFO L226 Difference]: Without dead ends: 3882 [2019-09-10 09:41:33,155 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 09:41:33,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3882 states. [2019-09-10 09:41:33,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3882 to 3882. [2019-09-10 09:41:33,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3882 states. [2019-09-10 09:41:33,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 5353 transitions. [2019-09-10 09:41:33,301 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 5353 transitions. Word has length 62 [2019-09-10 09:41:33,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:33,302 INFO L475 AbstractCegarLoop]: Abstraction has 3882 states and 5353 transitions. [2019-09-10 09:41:33,302 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 09:41:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 5353 transitions. [2019-09-10 09:41:33,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-10 09:41:33,303 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:33,304 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 09:41:33,304 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:33,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:33,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1848247394, now seen corresponding path program 1 times [2019-09-10 09:41:33,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:33,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:33,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:33,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:33,307 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:33,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:41:33,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:33,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:41:33,596 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:33,596 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:41:33,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:41:33,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:41:33,597 INFO L87 Difference]: Start difference. First operand 3882 states and 5353 transitions. Second operand 3 states. [2019-09-10 09:41:33,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:33,808 INFO L93 Difference]: Finished difference Result 7691 states and 10619 transitions. [2019-09-10 09:41:33,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:41:33,808 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2019-09-10 09:41:33,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:33,858 INFO L225 Difference]: With dead ends: 7691 [2019-09-10 09:41:33,859 INFO L226 Difference]: Without dead ends: 7683 [2019-09-10 09:41:33,859 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 09:41:33,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7683 states. [2019-09-10 09:41:34,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7683 to 6444. [2019-09-10 09:41:34,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6444 states. [2019-09-10 09:41:34,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6444 states to 6444 states and 8889 transitions. [2019-09-10 09:41:34,116 INFO L78 Accepts]: Start accepts. Automaton has 6444 states and 8889 transitions. Word has length 65 [2019-09-10 09:41:34,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:34,117 INFO L475 AbstractCegarLoop]: Abstraction has 6444 states and 8889 transitions. [2019-09-10 09:41:34,117 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:41:34,117 INFO L276 IsEmpty]: Start isEmpty. Operand 6444 states and 8889 transitions. [2019-09-10 09:41:34,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-10 09:41:34,126 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:34,127 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:34,127 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:34,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:34,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1504060568, now seen corresponding path program 1 times [2019-09-10 09:41:34,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:34,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:34,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:34,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:34,130 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:41:34,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:34,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:41:34,441 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:34,442 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:41:34,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:41:34,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:41:34,442 INFO L87 Difference]: Start difference. First operand 6444 states and 8889 transitions. Second operand 3 states. [2019-09-10 09:41:37,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:37,142 INFO L93 Difference]: Finished difference Result 7675 states and 10594 transitions. [2019-09-10 09:41:37,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:41:37,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-09-10 09:41:37,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:37,221 INFO L225 Difference]: With dead ends: 7675 [2019-09-10 09:41:37,222 INFO L226 Difference]: Without dead ends: 7665 [2019-09-10 09:41:37,222 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 09:41:37,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7665 states. [2019-09-10 09:41:37,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7665 to 5170. [2019-09-10 09:41:37,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5170 states. [2019-09-10 09:41:37,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 5170 states and 7123 transitions. [2019-09-10 09:41:37,498 INFO L78 Accepts]: Start accepts. Automaton has 5170 states and 7123 transitions. Word has length 80 [2019-09-10 09:41:37,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:37,500 INFO L475 AbstractCegarLoop]: Abstraction has 5170 states and 7123 transitions. [2019-09-10 09:41:37,500 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:41:37,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5170 states and 7123 transitions. [2019-09-10 09:41:37,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-10 09:41:37,503 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:37,503 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:41:37,503 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:37,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:37,504 INFO L82 PathProgramCache]: Analyzing trace with hash 556862832, now seen corresponding path program 1 times [2019-09-10 09:41:37,504 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:37,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:37,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:37,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:37,509 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:37,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 09:41:37,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:37,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 09:41:37,853 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:37,854 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 09:41:37,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 09:41:37,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 09:41:37,855 INFO L87 Difference]: Start difference. First operand 5170 states and 7123 transitions. Second operand 8 states. [2019-09-10 09:41:37,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:37,993 INFO L93 Difference]: Finished difference Result 5155 states and 7104 transitions. [2019-09-10 09:41:37,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 09:41:37,993 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 96 [2019-09-10 09:41:37,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:38,021 INFO L225 Difference]: With dead ends: 5155 [2019-09-10 09:41:38,022 INFO L226 Difference]: Without dead ends: 5155 [2019-09-10 09:41:38,023 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-10 09:41:38,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5155 states. [2019-09-10 09:41:38,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5155 to 5155. [2019-09-10 09:41:38,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5155 states. [2019-09-10 09:41:38,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 7104 transitions. [2019-09-10 09:41:38,206 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 7104 transitions. Word has length 96 [2019-09-10 09:41:38,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:38,206 INFO L475 AbstractCegarLoop]: Abstraction has 5155 states and 7104 transitions. [2019-09-10 09:41:38,207 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 09:41:38,207 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 7104 transitions. [2019-09-10 09:41:38,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 09:41:38,212 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:38,212 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 09:41:38,213 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:38,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:38,213 INFO L82 PathProgramCache]: Analyzing trace with hash -594444368, now seen corresponding path program 1 times [2019-09-10 09:41:38,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:38,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:38,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:38,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:38,217 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:38,619 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-10 09:41:38,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:38,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 09:41:38,620 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:38,620 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 09:41:38,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 09:41:38,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 09:41:38,621 INFO L87 Difference]: Start difference. First operand 5155 states and 7104 transitions. Second operand 8 states. [2019-09-10 09:41:38,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:38,738 INFO L93 Difference]: Finished difference Result 3885 states and 5341 transitions. [2019-09-10 09:41:38,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 09:41:38,739 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2019-09-10 09:41:38,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:38,768 INFO L225 Difference]: With dead ends: 3885 [2019-09-10 09:41:38,768 INFO L226 Difference]: Without dead ends: 3885 [2019-09-10 09:41:38,769 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-10 09:41:38,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2019-09-10 09:41:38,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3885. [2019-09-10 09:41:38,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3885 states. [2019-09-10 09:41:38,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 5341 transitions. [2019-09-10 09:41:38,877 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 5341 transitions. Word has length 103 [2019-09-10 09:41:38,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:38,878 INFO L475 AbstractCegarLoop]: Abstraction has 3885 states and 5341 transitions. [2019-09-10 09:41:38,878 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 09:41:38,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5341 transitions. [2019-09-10 09:41:38,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-10 09:41:38,882 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:38,882 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 09:41:38,883 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:38,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:38,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1992954746, now seen corresponding path program 1 times [2019-09-10 09:41:38,883 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:38,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:38,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:38,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:38,886 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:39,163 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-10 09:41:39,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:39,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 09:41:39,164 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:39,165 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 09:41:39,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 09:41:39,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 09:41:39,165 INFO L87 Difference]: Start difference. First operand 3885 states and 5341 transitions. Second operand 8 states. [2019-09-10 09:41:39,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:39,303 INFO L93 Difference]: Finished difference Result 2659 states and 3632 transitions. [2019-09-10 09:41:39,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 09:41:39,304 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 106 [2019-09-10 09:41:39,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:39,319 INFO L225 Difference]: With dead ends: 2659 [2019-09-10 09:41:39,320 INFO L226 Difference]: Without dead ends: 2659 [2019-09-10 09:41:39,320 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-10 09:41:39,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2019-09-10 09:41:39,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2659. [2019-09-10 09:41:39,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2659 states. [2019-09-10 09:41:39,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3632 transitions. [2019-09-10 09:41:39,404 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3632 transitions. Word has length 106 [2019-09-10 09:41:39,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:39,405 INFO L475 AbstractCegarLoop]: Abstraction has 2659 states and 3632 transitions. [2019-09-10 09:41:39,405 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 09:41:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3632 transitions. [2019-09-10 09:41:39,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 09:41:39,407 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:39,407 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 09:41:39,408 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:39,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:39,408 INFO L82 PathProgramCache]: Analyzing trace with hash 14046403, now seen corresponding path program 1 times [2019-09-10 09:41:39,408 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:39,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:39,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:39,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:39,411 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:39,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 09:41:39,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:39,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 09:41:39,707 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:39,707 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 09:41:39,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 09:41:39,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-10 09:41:39,708 INFO L87 Difference]: Start difference. First operand 2659 states and 3632 transitions. Second operand 11 states. [2019-09-10 09:41:39,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:39,860 INFO L93 Difference]: Finished difference Result 1434 states and 1923 transitions. [2019-09-10 09:41:39,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 09:41:39,861 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 110 [2019-09-10 09:41:39,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:39,866 INFO L225 Difference]: With dead ends: 1434 [2019-09-10 09:41:39,867 INFO L226 Difference]: Without dead ends: 1400 [2019-09-10 09:41:39,867 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-09-10 09:41:39,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2019-09-10 09:41:39,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1398. [2019-09-10 09:41:39,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2019-09-10 09:41:39,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1886 transitions. [2019-09-10 09:41:39,904 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1886 transitions. Word has length 110 [2019-09-10 09:41:39,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:39,905 INFO L475 AbstractCegarLoop]: Abstraction has 1398 states and 1886 transitions. [2019-09-10 09:41:39,905 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 09:41:39,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1886 transitions. [2019-09-10 09:41:39,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 09:41:39,907 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:39,908 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 09:41:39,908 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:39,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:39,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1859144313, now seen corresponding path program 1 times [2019-09-10 09:41:39,908 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:39,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:39,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:39,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:39,913 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:40,313 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-10 09:41:40,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:40,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 09:41:40,314 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:40,315 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 09:41:40,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 09:41:40,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 09:41:40,315 INFO L87 Difference]: Start difference. First operand 1398 states and 1886 transitions. Second operand 8 states. [2019-09-10 09:41:40,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:40,411 INFO L93 Difference]: Finished difference Result 1389 states and 1873 transitions. [2019-09-10 09:41:40,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 09:41:40,411 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 109 [2019-09-10 09:41:40,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:40,417 INFO L225 Difference]: With dead ends: 1389 [2019-09-10 09:41:40,418 INFO L226 Difference]: Without dead ends: 1389 [2019-09-10 09:41:40,418 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 09:41:40,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2019-09-10 09:41:40,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1389. [2019-09-10 09:41:40,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1389 states. [2019-09-10 09:41:40,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1873 transitions. [2019-09-10 09:41:40,452 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1873 transitions. Word has length 109 [2019-09-10 09:41:40,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:40,453 INFO L475 AbstractCegarLoop]: Abstraction has 1389 states and 1873 transitions. [2019-09-10 09:41:40,453 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 09:41:40,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1873 transitions. [2019-09-10 09:41:40,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 09:41:40,455 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:40,455 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 09:41:40,455 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:40,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:40,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1360408703, now seen corresponding path program 1 times [2019-09-10 09:41:40,456 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:40,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:40,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:40,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:40,458 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:40,809 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-10 09:41:40,809 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:40,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 09:41:40,810 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:40,810 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 09:41:40,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 09:41:40,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-10 09:41:40,811 INFO L87 Difference]: Start difference. First operand 1389 states and 1873 transitions. Second operand 11 states. [2019-09-10 09:41:40,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:40,970 INFO L93 Difference]: Finished difference Result 1386 states and 1869 transitions. [2019-09-10 09:41:40,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 09:41:40,971 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2019-09-10 09:41:40,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:40,977 INFO L225 Difference]: With dead ends: 1386 [2019-09-10 09:41:40,978 INFO L226 Difference]: Without dead ends: 1386 [2019-09-10 09:41:40,979 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-09-10 09:41:40,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2019-09-10 09:41:41,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1386. [2019-09-10 09:41:41,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1386 states. [2019-09-10 09:41:41,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 1869 transitions. [2019-09-10 09:41:41,014 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 1869 transitions. Word has length 108 [2019-09-10 09:41:41,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:41,015 INFO L475 AbstractCegarLoop]: Abstraction has 1386 states and 1869 transitions. [2019-09-10 09:41:41,015 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 09:41:41,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 1869 transitions. [2019-09-10 09:41:41,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-09-10 09:41:41,018 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:41,018 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 09:41:41,018 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:41,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:41,019 INFO L82 PathProgramCache]: Analyzing trace with hash -780573357, now seen corresponding path program 1 times [2019-09-10 09:41:41,019 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:41,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:41,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:41,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:41,022 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:41,282 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-10 09:41:41,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:41,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:41:41,283 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:41,283 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:41:41,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:41:41,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:41:41,286 INFO L87 Difference]: Start difference. First operand 1386 states and 1869 transitions. Second operand 3 states. [2019-09-10 09:41:43,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:43,730 INFO L93 Difference]: Finished difference Result 1385 states and 1867 transitions. [2019-09-10 09:41:43,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:41:43,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2019-09-10 09:41:43,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:43,739 INFO L225 Difference]: With dead ends: 1385 [2019-09-10 09:41:43,739 INFO L226 Difference]: Without dead ends: 1337 [2019-09-10 09:41:43,740 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 09:41:43,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2019-09-10 09:41:43,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2019-09-10 09:41:43,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1337 states. [2019-09-10 09:41:43,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1817 transitions. [2019-09-10 09:41:43,772 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1817 transitions. Word has length 123 [2019-09-10 09:41:43,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:43,774 INFO L475 AbstractCegarLoop]: Abstraction has 1337 states and 1817 transitions. [2019-09-10 09:41:43,774 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:41:43,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1817 transitions. [2019-09-10 09:41:43,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-10 09:41:43,775 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 09:41:43,776 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-10 09:41:43,776 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 09:41:43,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 09:41:43,776 INFO L82 PathProgramCache]: Analyzing trace with hash -994404246, now seen corresponding path program 1 times [2019-09-10 09:41:43,776 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 09:41:43,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:43,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 09:41:43,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 09:41:43,783 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 09:41:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 09:41:44,042 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-10 09:41:44,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 09:41:44,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 09:41:44,043 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 09:41:44,043 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 09:41:44,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 09:41:44,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 09:41:44,044 INFO L87 Difference]: Start difference. First operand 1337 states and 1817 transitions. Second operand 3 states. [2019-09-10 09:41:46,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 09:41:46,419 INFO L93 Difference]: Finished difference Result 1334 states and 1814 transitions. [2019-09-10 09:41:46,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 09:41:46,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-09-10 09:41:46,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 09:41:46,422 INFO L225 Difference]: With dead ends: 1334 [2019-09-10 09:41:46,422 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 09:41:46,423 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 09:41:46,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 09:41:46,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 09:41:46,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 09:41:46,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 09:41:46,423 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2019-09-10 09:41:46,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 09:41:46,424 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 09:41:46,424 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 09:41:46,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 09:41:46,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 09:41:46,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 09:41:46 BoogieIcfgContainer [2019-09-10 09:41:46,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 09:41:46,432 INFO L168 Benchmark]: Toolchain (without parser) took 27556.52 ms. Allocated memory was 135.8 MB in the beginning and 746.1 MB in the end (delta: 610.3 MB). Free memory was 83.8 MB in the beginning and 234.1 MB in the end (delta: -150.3 MB). Peak memory consumption was 460.0 MB. Max. memory is 7.1 GB. [2019-09-10 09:41:46,434 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 135.8 MB. Free memory was 110.2 MB in the beginning and 110.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 09:41:46,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2244.93 ms. Allocated memory was 135.8 MB in the beginning and 255.3 MB in the end (delta: 119.5 MB). Free memory was 83.4 MB in the beginning and 185.5 MB in the end (delta: -102.1 MB). Peak memory consumption was 114.3 MB. Max. memory is 7.1 GB. [2019-09-10 09:41:46,437 INFO L168 Benchmark]: Boogie Preprocessor took 319.93 ms. Allocated memory is still 255.3 MB. Free memory was 185.5 MB in the beginning and 153.7 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2019-09-10 09:41:46,442 INFO L168 Benchmark]: RCFGBuilder took 8218.48 ms. Allocated memory was 255.3 MB in the beginning and 498.6 MB in the end (delta: 243.3 MB). Free memory was 153.7 MB in the beginning and 226.0 MB in the end (delta: -72.3 MB). Peak memory consumption was 273.4 MB. Max. memory is 7.1 GB. [2019-09-10 09:41:46,443 INFO L168 Benchmark]: TraceAbstraction took 16769.27 ms. Allocated memory was 498.6 MB in the beginning and 746.1 MB in the end (delta: 247.5 MB). Free memory was 226.0 MB in the beginning and 234.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 239.4 MB. Max. memory is 7.1 GB. [2019-09-10 09:41:46,455 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 135.8 MB. Free memory was 110.2 MB in the beginning and 110.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2244.93 ms. Allocated memory was 135.8 MB in the beginning and 255.3 MB in the end (delta: 119.5 MB). Free memory was 83.4 MB in the beginning and 185.5 MB in the end (delta: -102.1 MB). Peak memory consumption was 114.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 319.93 ms. Allocated memory is still 255.3 MB. Free memory was 185.5 MB in the beginning and 153.7 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8218.48 ms. Allocated memory was 255.3 MB in the beginning and 498.6 MB in the end (delta: 243.3 MB). Free memory was 153.7 MB in the beginning and 226.0 MB in the end (delta: -72.3 MB). Peak memory consumption was 273.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16769.27 ms. Allocated memory was 498.6 MB in the beginning and 746.1 MB in the end (delta: 247.5 MB). Free memory was 226.0 MB in the beginning and 234.1 MB in the end (delta: -8.1 MB). Peak memory consumption was 239.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5603]: 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 161 procedures, 1580 locations, 1 error locations. SAFE Result, 16.7s OverallTime, 13 OverallIterations, 2 TraceHistogramMax, 9.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28776 SDtfs, 10926 SDslu, 94690 SDs, 0 SdLazy, 379 SolverSat, 27 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6444occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 3754 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1147 NumberOfCodeBlocks, 1147 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1134 ConstructedInterpolants, 0 QuantifiedInterpolants, 147640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 34/34 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...