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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:25:39,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:25:39,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:25:39,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:25:39,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:25:39,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:25:39,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:25:39,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:25:39,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:25:39,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:25:39,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:25:39,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:25:39,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:25:39,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:25:39,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:25:39,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:25:39,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:25:39,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:25:39,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:25:39,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:25:39,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:25:39,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:25:39,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:25:39,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:25:39,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:25:39,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:25:39,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:25:39,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:25:39,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:25:39,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:25:39,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:25:39,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:25:39,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:25:39,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:25:39,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:25:39,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:25:39,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:25:39,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:25:39,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:25:39,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:25:39,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:25:39,383 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 [2019-09-16 17:25:39,398 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:25:39,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:25:39,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:25:39,399 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:25:39,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:25:39,400 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:25:39,400 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:25:39,400 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:25:39,401 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:25:39,401 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:25:39,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:25:39,402 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:25:39,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:25:39,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:25:39,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:25:39,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:25:39,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:25:39,403 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:25:39,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:25:39,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:25:39,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:25:39,404 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:25:39,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:25:39,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:25:39,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:25:39,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:25:39,405 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:25:39,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:25:39,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:25:39,405 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:25:39,434 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:25:39,447 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:25:39,451 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:25:39,453 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:25:39,453 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:25:39,454 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2019-09-16 17:25:39,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90fcc7a88/5b128258b8a8409b8b576303ee5ec79c/FLAGcf4115f11 [2019-09-16 17:25:40,367 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:25:40,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2019-09-16 17:25:40,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90fcc7a88/5b128258b8a8409b8b576303ee5ec79c/FLAGcf4115f11 [2019-09-16 17:25:40,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90fcc7a88/5b128258b8a8409b8b576303ee5ec79c [2019-09-16 17:25:40,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:25:40,921 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:25:40,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:25:40,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:25:40,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:25:40,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:25:40" (1/1) ... [2019-09-16 17:25:40,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1055a3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:25:40, skipping insertion in model container [2019-09-16 17:25:40,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:25:40" (1/1) ... [2019-09-16 17:25:40,937 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:25:41,075 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:25:42,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:25:42,904 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:25:43,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:25:43,674 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:25:43,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:25:43 WrapperNode [2019-09-16 17:25:43,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:25:43,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:25:43,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:25:43,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:25:43,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:25:43" (1/1) ... [2019-09-16 17:25:43,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:25:43" (1/1) ... [2019-09-16 17:25:43,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:25:43" (1/1) ... [2019-09-16 17:25:43,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:25:43" (1/1) ... [2019-09-16 17:25:43,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:25:43" (1/1) ... [2019-09-16 17:25:43,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:25:43" (1/1) ... [2019-09-16 17:25:43,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:25:43" (1/1) ... [2019-09-16 17:25:44,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:25:44,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:25:44,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:25:44,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:25:44,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:25:43" (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 [2019-09-16 17:25:44,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:25:44,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:25:44,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-16 17:25:44,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-09-16 17:25:44,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2019-09-16 17:25:44,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2019-09-16 17:25:44,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-16 17:25:44,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-16 17:25:44,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-16 17:25:44,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-16 17:25:44,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-16 17:25:44,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-16 17:25:44,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-16 17:25:44,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-16 17:25:44,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-16 17:25:44,127 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-16 17:25:44,127 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-16 17:25:44,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2019-09-16 17:25:44,127 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-09-16 17:25:44,128 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-09-16 17:25:44,128 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-16 17:25:44,128 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-16 17:25:44,128 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2019-09-16 17:25:44,128 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2019-09-16 17:25:44,129 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ss_max_streams [2019-09-16 17:25:44,129 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-09-16 17:25:44,129 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-09-16 17:25:44,130 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-09-16 17:25:44,130 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2019-09-16 17:25:44,130 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-09-16 17:25:44,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-16 17:25:44,130 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_pipe_endpoint [2019-09-16 17:25:44,130 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_bus [2019-09-16 17:25:44,130 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_to_hcd [2019-09-16 17:25:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bidi_cmnd [2019-09-16 17:25:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_in [2019-09-16 17:25:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_out [2019-09-16 17:25:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_use_blk_mq [2019-09-16 17:25:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_add_host [2019-09-16 17:25:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_init_shared_tag_map [2019-09-16 17:25:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_is_interface [2019-09-16 17:25:44,132 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_find_uas_alt_setting [2019-09-16 17:25:44,132 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_find_endpoints [2019-09-16 17:25:44,132 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_use_uas_driver [2019-09-16 17:25:44,132 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_do_work [2019-09-16 17:25:44,132 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_add_work [2019-09-16 17:25:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_zap_pending [2019-09-16 17:25:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_sense [2019-09-16 17:25:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_log_cmd_state [2019-09-16 17:25:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_free_unsubmitted_urbs [2019-09-16 17:25:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_try_complete [2019-09-16 17:25:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_xfer_data [2019-09-16 17:25:44,133 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_stat_cmplt [2019-09-16 17:25:44,134 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_data_cmplt [2019-09-16 17:25:44,134 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_cmd_cmplt [2019-09-16 17:25:44,134 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_alloc_data_urb [2019-09-16 17:25:44,134 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_alloc_sense_urb [2019-09-16 17:25:44,134 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_alloc_cmd_urb [2019-09-16 17:25:44,135 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_submit_sense_urb [2019-09-16 17:25:44,135 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_submit_urbs [2019-09-16 17:25:44,135 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_queuecommand_lck [2019-09-16 17:25:44,135 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_queuecommand [2019-09-16 17:25:44,135 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_eh_abort_handler [2019-09-16 17:25:44,136 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_eh_bus_reset_handler [2019-09-16 17:25:44,136 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_slave_alloc [2019-09-16 17:25:44,136 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_slave_configure [2019-09-16 17:25:44,136 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_switch_interface [2019-09-16 17:25:44,136 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_configure_endpoints [2019-09-16 17:25:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_free_streams [2019-09-16 17:25:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_probe [2019-09-16 17:25:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_cmnd_list_empty [2019-09-16 17:25:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_wait_for_pending_cmnds [2019-09-16 17:25:44,137 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_pre_reset [2019-09-16 17:25:44,138 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_post_reset [2019-09-16 17:25:44,138 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_suspend [2019-09-16 17:25:44,138 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_resume [2019-09-16 17:25:44,138 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_reset_resume [2019-09-16 17:25:44,139 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_disconnect [2019-09-16 17:25:44,139 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_shutdown [2019-09-16 17:25:44,139 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_driver_init [2019-09-16 17:25:44,140 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_driver_exit [2019-09-16 17:25:44,140 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-09-16 17:25:44,140 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-09-16 17:25:44,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-09-16 17:25:44,140 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-09-16 17:25:44,141 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-09-16 17:25:44,142 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-09-16 17:25:44,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2019-09-16 17:25:44,142 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-09-16 17:25:44,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:25:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-16 17:25:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_15 [2019-09-16 17:25:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_16 [2019-09-16 17:25:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_17 [2019-09-16 17:25:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_18 [2019-09-16 17:25:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_19 [2019-09-16 17:25:44,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_25 [2019-09-16 17:25:44,144 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-16 17:25:44,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_scsi_add_host_with_dma_29 [2019-09-16 17:25:44,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_30 [2019-09-16 17:25:44,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_31 [2019-09-16 17:25:44,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_32 [2019-09-16 17:25:44,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_33 [2019-09-16 17:25:44,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_34 [2019-09-16 17:25:44,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_35 [2019-09-16 17:25:44,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_36 [2019-09-16 17:25:44,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_scsi_host_alloc_37 [2019-09-16 17:25:44,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_work_38 [2019-09-16 17:25:44,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_39 [2019-09-16 17:25:44,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_scsi_remove_host_40 [2019-09-16 17:25:44,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_41 [2019-09-16 17:25:44,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_42 [2019-09-16 17:25:44,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-16 17:25:44,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-16 17:25:44,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-16 17:25:44,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-16 17:25:44,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-16 17:25:44,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-09-16 17:25:44,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-09-16 17:25:44,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-09-16 17:25:44,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-09-16 17:25:44,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-09-16 17:25:44,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-09-16 17:25:44,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-16 17:25:44,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-09-16 17:25:44,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-16 17:25:44,150 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-16 17:25:44,150 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_tags [2019-09-16 17:25:44,153 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2019-09-16 17:25:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_update_dma_alignment [2019-09-16 17:25:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2019-09-16 17:25:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-16 17:25:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2019-09-16 17:25:44,155 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-09-16 17:25:44,155 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2019-09-16 17:25:44,155 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-09-16 17:25:44,155 INFO L138 BoogieDeclarations]: Found implementation of procedure int_to_scsilun [2019-09-16 17:25:44,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-16 17:25:44,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-16 17:25:44,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-09-16 17:25:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2019-09-16 17:25:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-09-16 17:25:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-16 17:25:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-09-16 17:25:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-09-16 17:25:44,166 INFO L138 BoogieDeclarations]: Found implementation of procedure scmd_printk [2019-09-16 17:25:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_add_host_with_dma [2019-09-16 17:25:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_requests [2019-09-16 17:25:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_change_queue_depth [2019-09-16 17:25:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_get_serial [2019-09-16 17:25:44,167 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_alloc [2019-09-16 17:25:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2019-09-16 17:25:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_print_command [2019-09-16 17:25:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2019-09-16 17:25:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_report_bus_reset [2019-09-16 17:25:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_scan_host [2019-09-16 17:25:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unblock_requests [2019-09-16 17:25:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_prefix_printk [2019-09-16 17:25:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_streams [2019-09-16 17:25:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2019-09-16 17:25:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-16 17:25:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_streams [2019-09-16 17:25:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-09-16 17:25:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_urb [2019-09-16 17:25:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2019-09-16 17:25:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-09-16 17:25:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_lock_device_for_reset [2019-09-16 17:25:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-16 17:25:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2019-09-16 17:25:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2019-09-16 17:25:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_stor_adjust_quirks [2019-09-16 17:25:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2019-09-16 17:25:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2019-09-16 17:25:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wait_anchor_empty_timeout [2019-09-16 17:25:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-16 17:25:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-16 17:25:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-16 17:25:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-16 17:25:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-16 17:25:44,171 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-16 17:25:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:25:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-16 17:25:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-09-16 17:25:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2019-09-16 17:25:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:25:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2019-09-16 17:25:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-09-16 17:25:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-09-16 17:25:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:25:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 17:25:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-16 17:25:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:25:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-16 17:25:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-16 17:25:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-16 17:25:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-16 17:25:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:25:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-16 17:25:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-16 17:25:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-16 17:25:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-16 17:25:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-16 17:25:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-16 17:25:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-16 17:25:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-16 17:25:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-16 17:25:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-16 17:25:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:25:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-16 17:25:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-16 17:25:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-09-16 17:25:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2019-09-16 17:25:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-16 17:25:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-16 17:25:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-16 17:25:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2019-09-16 17:25:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-16 17:25:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-16 17:25:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-16 17:25:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-09-16 17:25:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-09-16 17:25:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_15 [2019-09-16 17:25:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_17 [2019-09-16 17:25:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-09-16 17:25:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_16 [2019-09-16 17:25:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_19 [2019-09-16 17:25:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-09-16 17:25:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_18 [2019-09-16 17:25:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2019-09-16 17:25:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_work_38 [2019-09-16 17:25:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2019-09-16 17:25:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_39 [2019-09-16 17:25:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-09-16 17:25:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-09-16 17:25:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_25 [2019-09-16 17:25:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-16 17:25:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-09-16 17:25:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-09-16 17:25:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-09-16 17:25:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-09-16 17:25:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-09-16 17:25:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-09-16 17:25:44,179 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-09-16 17:25:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2019-09-16 17:25:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-09-16 17:25:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-16 17:25:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:25:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-16 17:25:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2019-09-16 17:25:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2019-09-16 17:25:44,180 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-16 17:25:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-09-16 17:25:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2019-09-16 17:25:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_update_dma_alignment [2019-09-16 17:25:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_tags [2019-09-16 17:25:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2019-09-16 17:25:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ss_max_streams [2019-09-16 17:25:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-09-16 17:25:44,181 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-09-16 17:25:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-09-16 17:25:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_lock_device_for_reset [2019-09-16 17:25:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2019-09-16 17:25:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_streams [2019-09-16 17:25:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_streams [2019-09-16 17:25:44,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-16 17:25:44,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_41 [2019-09-16 17:25:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-16 17:25:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_42 [2019-09-16 17:25:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2019-09-16 17:25:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:25:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:25:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-09-16 17:25:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:25:44,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_30 [2019-09-16 17:25:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_31 [2019-09-16 17:25:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_32 [2019-09-16 17:25:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-09-16 17:25:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_urb [2019-09-16 17:25:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_33 [2019-09-16 17:25:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_34 [2019-09-16 17:25:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_35 [2019-09-16 17:25:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_36 [2019-09-16 17:25:44,192 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2019-09-16 17:25:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-09-16 17:25:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2019-09-16 17:25:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2019-09-16 17:25:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2019-09-16 17:25:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wait_anchor_empty_timeout [2019-09-16 17:25:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2019-09-16 17:25:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-16 17:25:44,193 INFO L130 BoogieDeclarations]: Found specification of procedure usb_pipe_endpoint [2019-09-16 17:25:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_bus [2019-09-16 17:25:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure bus_to_hcd [2019-09-16 17:25:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure int_to_scsilun [2019-09-16 17:25:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_prefix_printk [2019-09-16 17:25:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure scmd_printk [2019-09-16 17:25:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_change_queue_depth [2019-09-16 17:25:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bidi_cmnd [2019-09-16 17:25:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_in [2019-09-16 17:25:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_out [2019-09-16 17:25:44,194 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_report_bus_reset [2019-09-16 17:25:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_print_command [2019-09-16 17:25:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure shost_use_blk_mq [2019-09-16 17:25:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_alloc [2019-09-16 17:25:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_scsi_host_alloc_37 [2019-09-16 17:25:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_add_host_with_dma [2019-09-16 17:25:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_scsi_add_host_with_dma_29 [2019-09-16 17:25:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_scan_host [2019-09-16 17:25:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2019-09-16 17:25:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_scsi_remove_host_40 [2019-09-16 17:25:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2019-09-16 17:25:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_get_serial [2019-09-16 17:25:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_add_host [2019-09-16 17:25:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unblock_requests [2019-09-16 17:25:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_requests [2019-09-16 17:25:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_init_shared_tag_map [2019-09-16 17:25:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure usb_stor_adjust_quirks [2019-09-16 17:25:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure uas_is_interface [2019-09-16 17:25:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure uas_find_uas_alt_setting [2019-09-16 17:25:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure uas_find_endpoints [2019-09-16 17:25:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure uas_use_uas_driver [2019-09-16 17:25:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure uas_submit_urbs [2019-09-16 17:25:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure uas_do_work [2019-09-16 17:25:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure uas_try_complete [2019-09-16 17:25:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure uas_free_streams [2019-09-16 17:25:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure uas_log_cmd_state [2019-09-16 17:25:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure uas_add_work [2019-09-16 17:25:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure uas_zap_pending [2019-09-16 17:25:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure uas_sense [2019-09-16 17:25:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-16 17:25:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure uas_free_unsubmitted_urbs [2019-09-16 17:25:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-16 17:25:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure uas_xfer_data [2019-09-16 17:25:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure uas_stat_cmplt [2019-09-16 17:25:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure uas_data_cmplt [2019-09-16 17:25:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure uas_cmd_cmplt [2019-09-16 17:25:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure uas_alloc_data_urb [2019-09-16 17:25:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure uas_alloc_sense_urb [2019-09-16 17:25:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure uas_alloc_cmd_urb [2019-09-16 17:25:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure uas_submit_sense_urb [2019-09-16 17:25:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure uas_queuecommand_lck [2019-09-16 17:25:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure uas_queuecommand [2019-09-16 17:25:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure uas_eh_abort_handler [2019-09-16 17:25:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure uas_eh_bus_reset_handler [2019-09-16 17:25:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure uas_slave_alloc [2019-09-16 17:25:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure uas_slave_configure [2019-09-16 17:25:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure uas_switch_interface [2019-09-16 17:25:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure uas_configure_endpoints [2019-09-16 17:25:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure uas_probe [2019-09-16 17:25:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure uas_cmnd_list_empty [2019-09-16 17:25:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure uas_wait_for_pending_cmnds [2019-09-16 17:25:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure uas_pre_reset [2019-09-16 17:25:44,200 INFO L130 BoogieDeclarations]: Found specification of procedure uas_post_reset [2019-09-16 17:25:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure uas_suspend [2019-09-16 17:25:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure uas_resume [2019-09-16 17:25:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure uas_reset_resume [2019-09-16 17:25:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure uas_disconnect [2019-09-16 17:25:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure uas_shutdown [2019-09-16 17:25:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure uas_driver_init [2019-09-16 17:25:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure uas_driver_exit [2019-09-16 17:25:44,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-16 17:25:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-16 17:25:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:25:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-16 17:25:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-16 17:25:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-16 17:25:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-16 17:25:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-16 17:25:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-09-16 17:25:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-09-16 17:25:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-09-16 17:25:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-09-16 17:25:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-16 17:25:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-16 17:25:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:25:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-16 17:25:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:25:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:25:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-16 17:25:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:25:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-16 17:25:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-16 17:25:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-16 17:25:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-16 17:25:45,614 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-16 17:25:53,089 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:25:53,089 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-16 17:25:53,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:25:53 BoogieIcfgContainer [2019-09-16 17:25:53,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:25:53,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:25:53,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:25:53,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:25:53,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:25:40" (1/3) ... [2019-09-16 17:25:53,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f340be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:25:53, skipping insertion in model container [2019-09-16 17:25:53,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:25:43" (2/3) ... [2019-09-16 17:25:53,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f340be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:25:53, skipping insertion in model container [2019-09-16 17:25:53,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:25:53" (3/3) ... [2019-09-16 17:25:53,103 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2019-09-16 17:25:53,115 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:25:53,126 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:25:53,145 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:25:53,174 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:25:53,175 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:25:53,175 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:25:53,175 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:25:53,175 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:25:53,175 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:25:53,175 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:25:53,176 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:25:53,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states. [2019-09-16 17:25:53,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-16 17:25:53,267 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:25:53,268 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-09-16 17:25:53,271 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:25:53,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:25:53,277 INFO L82 PathProgramCache]: Analyzing trace with hash 939117992, now seen corresponding path program 1 times [2019-09-16 17:25:53,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:25:53,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:25:53,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:25:53,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:25:53,375 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:25:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:25:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-16 17:25:54,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:25:54,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:25:54,409 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:25:54,414 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:25:54,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:25:54,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:25:54,434 INFO L87 Difference]: Start difference. First operand 1414 states. Second operand 3 states. [2019-09-16 17:25:54,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:25:54,920 INFO L93 Difference]: Finished difference Result 2643 states and 3513 transitions. [2019-09-16 17:25:54,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:25:54,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2019-09-16 17:25:54,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:25:54,987 INFO L225 Difference]: With dead ends: 2643 [2019-09-16 17:25:54,987 INFO L226 Difference]: Without dead ends: 2589 [2019-09-16 17:25:54,989 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:25:55,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2019-09-16 17:25:55,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2586. [2019-09-16 17:25:55,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2586 states. [2019-09-16 17:25:55,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 3445 transitions. [2019-09-16 17:25:55,302 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 3445 transitions. Word has length 106 [2019-09-16 17:25:55,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:25:55,302 INFO L475 AbstractCegarLoop]: Abstraction has 2586 states and 3445 transitions. [2019-09-16 17:25:55,303 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:25:55,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 3445 transitions. [2019-09-16 17:25:55,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-09-16 17:25:55,312 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:25:55,312 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-09-16 17:25:55,313 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:25:55,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:25:55,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1010294298, now seen corresponding path program 1 times [2019-09-16 17:25:55,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:25:55,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:25:55,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:25:55,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:25:55,332 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:25:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:25:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-16 17:25:55,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:25:55,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:25:55,689 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:25:55,697 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:25:55,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:25:55,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:25:55,704 INFO L87 Difference]: Start difference. First operand 2586 states and 3445 transitions. Second operand 3 states. [2019-09-16 17:25:55,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:25:55,942 INFO L93 Difference]: Finished difference Result 3844 states and 5162 transitions. [2019-09-16 17:25:55,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:25:55,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2019-09-16 17:25:55,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:25:55,969 INFO L225 Difference]: With dead ends: 3844 [2019-09-16 17:25:55,969 INFO L226 Difference]: Without dead ends: 3844 [2019-09-16 17:25:55,970 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:25:55,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3844 states. [2019-09-16 17:25:56,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3844 to 3841. [2019-09-16 17:25:56,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3841 states. [2019-09-16 17:25:56,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 5160 transitions. [2019-09-16 17:25:56,107 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 5160 transitions. Word has length 105 [2019-09-16 17:25:56,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:25:56,108 INFO L475 AbstractCegarLoop]: Abstraction has 3841 states and 5160 transitions. [2019-09-16 17:25:56,108 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:25:56,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 5160 transitions. [2019-09-16 17:25:56,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-16 17:25:56,112 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:25:56,112 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-09-16 17:25:56,112 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:25:56,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:25:56,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1430810961, now seen corresponding path program 1 times [2019-09-16 17:25:56,113 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:25:56,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:25:56,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:25:56,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:25:56,127 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:25:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:25:56,421 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-16 17:25:56,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:25:56,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:25:56,422 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:25:56,423 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:25:56,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:25:56,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:25:56,423 INFO L87 Difference]: Start difference. First operand 3841 states and 5160 transitions. Second operand 5 states. [2019-09-16 17:26:00,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:00,347 INFO L93 Difference]: Finished difference Result 5119 states and 6919 transitions. [2019-09-16 17:26:00,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:26:00,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2019-09-16 17:26:00,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:00,381 INFO L225 Difference]: With dead ends: 5119 [2019-09-16 17:26:00,381 INFO L226 Difference]: Without dead ends: 5119 [2019-09-16 17:26:00,382 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:26:00,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5119 states. [2019-09-16 17:26:00,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5119 to 5114. [2019-09-16 17:26:00,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5114 states. [2019-09-16 17:26:00,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5114 states to 5114 states and 6915 transitions. [2019-09-16 17:26:00,591 INFO L78 Accepts]: Start accepts. Automaton has 5114 states and 6915 transitions. Word has length 108 [2019-09-16 17:26:00,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:00,591 INFO L475 AbstractCegarLoop]: Abstraction has 5114 states and 6915 transitions. [2019-09-16 17:26:00,591 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:26:00,592 INFO L276 IsEmpty]: Start isEmpty. Operand 5114 states and 6915 transitions. [2019-09-16 17:26:00,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-16 17:26:00,597 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:00,597 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-09-16 17:26:00,598 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:00,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:00,598 INFO L82 PathProgramCache]: Analyzing trace with hash 52122863, now seen corresponding path program 1 times [2019-09-16 17:26:00,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:00,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:00,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:00,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:00,611 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:01,026 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-16 17:26:01,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:01,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:26:01,027 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:01,028 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:26:01,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:26:01,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:26:01,029 INFO L87 Difference]: Start difference. First operand 5114 states and 6915 transitions. Second operand 5 states. [2019-09-16 17:26:05,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:05,401 INFO L93 Difference]: Finished difference Result 6385 states and 8657 transitions. [2019-09-16 17:26:05,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:26:05,402 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2019-09-16 17:26:05,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:05,443 INFO L225 Difference]: With dead ends: 6385 [2019-09-16 17:26:05,443 INFO L226 Difference]: Without dead ends: 6385 [2019-09-16 17:26:05,444 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:26:05,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6385 states. [2019-09-16 17:26:05,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6385 to 6378. [2019-09-16 17:26:05,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6378 states. [2019-09-16 17:26:05,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6378 states to 6378 states and 8651 transitions. [2019-09-16 17:26:05,664 INFO L78 Accepts]: Start accepts. Automaton has 6378 states and 8651 transitions. Word has length 107 [2019-09-16 17:26:05,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:05,664 INFO L475 AbstractCegarLoop]: Abstraction has 6378 states and 8651 transitions. [2019-09-16 17:26:05,664 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:26:05,665 INFO L276 IsEmpty]: Start isEmpty. Operand 6378 states and 8651 transitions. [2019-09-16 17:26:05,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-09-16 17:26:05,669 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:05,669 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-09-16 17:26:05,670 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:05,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:05,670 INFO L82 PathProgramCache]: Analyzing trace with hash -974622592, now seen corresponding path program 1 times [2019-09-16 17:26:05,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:05,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:05,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:05,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:05,682 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-09-16 17:26:05,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:05,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:26:05,982 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:05,984 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:26:05,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:26:05,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:26:05,984 INFO L87 Difference]: Start difference. First operand 6378 states and 8651 transitions. Second operand 3 states. [2019-09-16 17:26:06,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:06,293 INFO L93 Difference]: Finished difference Result 11979 states and 16363 transitions. [2019-09-16 17:26:06,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:26:06,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-09-16 17:26:06,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:06,379 INFO L225 Difference]: With dead ends: 11979 [2019-09-16 17:26:06,380 INFO L226 Difference]: Without dead ends: 11979 [2019-09-16 17:26:06,380 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:26:06,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11979 states. [2019-09-16 17:26:06,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11979 to 11861. [2019-09-16 17:26:06,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11861 states. [2019-09-16 17:26:06,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11861 states to 11861 states and 16216 transitions. [2019-09-16 17:26:06,817 INFO L78 Accepts]: Start accepts. Automaton has 11861 states and 16216 transitions. Word has length 135 [2019-09-16 17:26:06,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:06,818 INFO L475 AbstractCegarLoop]: Abstraction has 11861 states and 16216 transitions. [2019-09-16 17:26:06,818 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:26:06,818 INFO L276 IsEmpty]: Start isEmpty. Operand 11861 states and 16216 transitions. [2019-09-16 17:26:06,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-09-16 17:26:06,830 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:06,831 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:06,832 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:06,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:06,832 INFO L82 PathProgramCache]: Analyzing trace with hash 872430313, now seen corresponding path program 1 times [2019-09-16 17:26:06,832 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:06,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:06,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:06,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:06,859 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:07,334 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-09-16 17:26:07,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:07,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:26:07,335 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:07,335 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:26:07,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:26:07,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:26:07,336 INFO L87 Difference]: Start difference. First operand 11861 states and 16216 transitions. Second operand 3 states. [2019-09-16 17:26:07,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:07,723 INFO L93 Difference]: Finished difference Result 19748 states and 27226 transitions. [2019-09-16 17:26:07,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:26:07,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2019-09-16 17:26:07,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:07,845 INFO L225 Difference]: With dead ends: 19748 [2019-09-16 17:26:07,845 INFO L226 Difference]: Without dead ends: 19748 [2019-09-16 17:26:07,846 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:26:07,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19748 states. [2019-09-16 17:26:08,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19748 to 19655. [2019-09-16 17:26:08,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19655 states. [2019-09-16 17:26:08,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19655 states to 19655 states and 27114 transitions. [2019-09-16 17:26:08,553 INFO L78 Accepts]: Start accepts. Automaton has 19655 states and 27114 transitions. Word has length 217 [2019-09-16 17:26:08,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:08,553 INFO L475 AbstractCegarLoop]: Abstraction has 19655 states and 27114 transitions. [2019-09-16 17:26:08,554 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:26:08,554 INFO L276 IsEmpty]: Start isEmpty. Operand 19655 states and 27114 transitions. [2019-09-16 17:26:08,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2019-09-16 17:26:08,564 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:08,564 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:08,565 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:08,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:08,565 INFO L82 PathProgramCache]: Analyzing trace with hash 367664715, now seen corresponding path program 1 times [2019-09-16 17:26:08,565 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:08,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:08,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:08,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:08,576 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:08,938 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-09-16 17:26:08,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:08,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:26:08,939 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:08,939 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:26:08,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:26:08,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:26:08,940 INFO L87 Difference]: Start difference. First operand 19655 states and 27114 transitions. Second operand 5 states. [2019-09-16 17:26:09,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:09,170 INFO L93 Difference]: Finished difference Result 19715 states and 27174 transitions. [2019-09-16 17:26:09,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:26:09,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 262 [2019-09-16 17:26:09,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:09,281 INFO L225 Difference]: With dead ends: 19715 [2019-09-16 17:26:09,281 INFO L226 Difference]: Without dead ends: 19715 [2019-09-16 17:26:09,281 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:26:09,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19715 states. [2019-09-16 17:26:10,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19715 to 19705. [2019-09-16 17:26:10,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19705 states. [2019-09-16 17:26:10,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19705 states to 19705 states and 27164 transitions. [2019-09-16 17:26:10,283 INFO L78 Accepts]: Start accepts. Automaton has 19705 states and 27164 transitions. Word has length 262 [2019-09-16 17:26:10,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:10,285 INFO L475 AbstractCegarLoop]: Abstraction has 19705 states and 27164 transitions. [2019-09-16 17:26:10,285 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:26:10,286 INFO L276 IsEmpty]: Start isEmpty. Operand 19705 states and 27164 transitions. [2019-09-16 17:26:10,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-09-16 17:26:10,309 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:10,309 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:10,310 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:10,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:10,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1090288396, now seen corresponding path program 1 times [2019-09-16 17:26:10,311 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:10,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:10,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:10,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:10,322 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2019-09-16 17:26:10,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:10,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:26:10,725 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:10,727 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:26:10,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:26:10,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:26:10,728 INFO L87 Difference]: Start difference. First operand 19705 states and 27164 transitions. Second operand 3 states. [2019-09-16 17:26:12,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:12,971 INFO L93 Difference]: Finished difference Result 28269 states and 39071 transitions. [2019-09-16 17:26:12,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:26:12,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2019-09-16 17:26:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:13,107 INFO L225 Difference]: With dead ends: 28269 [2019-09-16 17:26:13,107 INFO L226 Difference]: Without dead ends: 28269 [2019-09-16 17:26:13,108 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:26:13,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28269 states. [2019-09-16 17:26:14,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28269 to 28176. [2019-09-16 17:26:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28176 states. [2019-09-16 17:26:14,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28176 states to 28176 states and 38959 transitions. [2019-09-16 17:26:14,722 INFO L78 Accepts]: Start accepts. Automaton has 28176 states and 38959 transitions. Word has length 286 [2019-09-16 17:26:14,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:14,723 INFO L475 AbstractCegarLoop]: Abstraction has 28176 states and 38959 transitions. [2019-09-16 17:26:14,723 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:26:14,723 INFO L276 IsEmpty]: Start isEmpty. Operand 28176 states and 38959 transitions. [2019-09-16 17:26:14,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2019-09-16 17:26:14,739 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:14,740 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:14,740 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:14,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:14,741 INFO L82 PathProgramCache]: Analyzing trace with hash -913182836, now seen corresponding path program 1 times [2019-09-16 17:26:14,741 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:14,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:14,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:14,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:14,753 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:15,506 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-09-16 17:26:15,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:15,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-16 17:26:15,507 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:15,508 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-16 17:26:15,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-16 17:26:15,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:26:15,509 INFO L87 Difference]: Start difference. First operand 28176 states and 38959 transitions. Second operand 19 states. [2019-09-16 17:26:18,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:18,258 INFO L93 Difference]: Finished difference Result 28396 states and 39234 transitions. [2019-09-16 17:26:18,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:26:18,259 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 288 [2019-09-16 17:26:18,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:18,405 INFO L225 Difference]: With dead ends: 28396 [2019-09-16 17:26:18,405 INFO L226 Difference]: Without dead ends: 28396 [2019-09-16 17:26:18,406 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2019-09-16 17:26:18,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28396 states. [2019-09-16 17:26:19,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28396 to 28236. [2019-09-16 17:26:19,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28236 states. [2019-09-16 17:26:19,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28236 states to 28236 states and 39029 transitions. [2019-09-16 17:26:19,645 INFO L78 Accepts]: Start accepts. Automaton has 28236 states and 39029 transitions. Word has length 288 [2019-09-16 17:26:19,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:19,646 INFO L475 AbstractCegarLoop]: Abstraction has 28236 states and 39029 transitions. [2019-09-16 17:26:19,647 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-16 17:26:19,647 INFO L276 IsEmpty]: Start isEmpty. Operand 28236 states and 39029 transitions. [2019-09-16 17:26:19,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2019-09-16 17:26:19,661 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:19,661 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:19,661 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:19,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:19,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1489005680, now seen corresponding path program 1 times [2019-09-16 17:26:19,662 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:19,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:19,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:19,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:19,676 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:20,495 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-09-16 17:26:20,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:20,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-09-16 17:26:20,495 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:20,497 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-16 17:26:20,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-16 17:26:20,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2019-09-16 17:26:20,498 INFO L87 Difference]: Start difference. First operand 28236 states and 39029 transitions. Second operand 17 states. [2019-09-16 17:26:22,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:22,713 INFO L93 Difference]: Finished difference Result 28416 states and 39254 transitions. [2019-09-16 17:26:22,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:26:22,714 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 299 [2019-09-16 17:26:22,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:22,842 INFO L225 Difference]: With dead ends: 28416 [2019-09-16 17:26:22,842 INFO L226 Difference]: Without dead ends: 28416 [2019-09-16 17:26:22,843 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2019-09-16 17:26:22,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28416 states. [2019-09-16 17:26:23,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28416 to 28276. [2019-09-16 17:26:23,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28276 states. [2019-09-16 17:26:23,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28276 states to 28276 states and 39079 transitions. [2019-09-16 17:26:23,565 INFO L78 Accepts]: Start accepts. Automaton has 28276 states and 39079 transitions. Word has length 299 [2019-09-16 17:26:23,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:23,566 INFO L475 AbstractCegarLoop]: Abstraction has 28276 states and 39079 transitions. [2019-09-16 17:26:23,566 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-16 17:26:23,566 INFO L276 IsEmpty]: Start isEmpty. Operand 28276 states and 39079 transitions. [2019-09-16 17:26:23,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2019-09-16 17:26:23,580 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:23,581 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:23,581 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:23,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:23,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1840398799, now seen corresponding path program 1 times [2019-09-16 17:26:23,582 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:23,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:23,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:23,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:23,592 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:25,068 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-09-16 17:26:25,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:25,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:26:25,069 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:25,070 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:26:25,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:26:25,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:26:25,070 INFO L87 Difference]: Start difference. First operand 28276 states and 39079 transitions. Second operand 3 states. [2019-09-16 17:26:25,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:25,219 INFO L93 Difference]: Finished difference Result 28296 states and 39099 transitions. [2019-09-16 17:26:25,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:26:25,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 299 [2019-09-16 17:26:25,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:25,340 INFO L225 Difference]: With dead ends: 28296 [2019-09-16 17:26:25,340 INFO L226 Difference]: Without dead ends: 28296 [2019-09-16 17:26:25,341 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:26:25,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28296 states. [2019-09-16 17:26:25,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28296 to 28296. [2019-09-16 17:26:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28296 states. [2019-09-16 17:26:26,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28296 states to 28296 states and 39099 transitions. [2019-09-16 17:26:26,033 INFO L78 Accepts]: Start accepts. Automaton has 28296 states and 39099 transitions. Word has length 299 [2019-09-16 17:26:26,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:26,034 INFO L475 AbstractCegarLoop]: Abstraction has 28296 states and 39099 transitions. [2019-09-16 17:26:26,034 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:26:26,034 INFO L276 IsEmpty]: Start isEmpty. Operand 28296 states and 39099 transitions. [2019-09-16 17:26:26,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2019-09-16 17:26:26,047 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:26,048 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:26,048 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:26,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:26,049 INFO L82 PathProgramCache]: Analyzing trace with hash -2105046289, now seen corresponding path program 1 times [2019-09-16 17:26:26,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:26,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:26,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:26,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:26,060 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:26,402 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-09-16 17:26:26,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:26,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:26:26,403 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:26,405 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:26:26,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:26:26,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:26:26,406 INFO L87 Difference]: Start difference. First operand 28296 states and 39099 transitions. Second operand 4 states. [2019-09-16 17:26:26,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:26,596 INFO L93 Difference]: Finished difference Result 28356 states and 39159 transitions. [2019-09-16 17:26:26,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:26:26,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 299 [2019-09-16 17:26:26,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:26,693 INFO L225 Difference]: With dead ends: 28356 [2019-09-16 17:26:26,693 INFO L226 Difference]: Without dead ends: 28356 [2019-09-16 17:26:26,693 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:26:26,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28356 states. [2019-09-16 17:26:27,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28356 to 28336. [2019-09-16 17:26:27,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28336 states. [2019-09-16 17:26:27,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28336 states to 28336 states and 39139 transitions. [2019-09-16 17:26:27,557 INFO L78 Accepts]: Start accepts. Automaton has 28336 states and 39139 transitions. Word has length 299 [2019-09-16 17:26:27,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:27,557 INFO L475 AbstractCegarLoop]: Abstraction has 28336 states and 39139 transitions. [2019-09-16 17:26:27,557 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:26:27,558 INFO L276 IsEmpty]: Start isEmpty. Operand 28336 states and 39139 transitions. [2019-09-16 17:26:27,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2019-09-16 17:26:27,570 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:27,570 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:27,571 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:27,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:27,571 INFO L82 PathProgramCache]: Analyzing trace with hash 819264687, now seen corresponding path program 1 times [2019-09-16 17:26:27,571 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:27,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:27,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:27,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:27,582 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:27,868 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-09-16 17:26:27,868 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:27,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:26:27,868 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:27,869 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:26:27,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:26:27,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:26:27,870 INFO L87 Difference]: Start difference. First operand 28336 states and 39139 transitions. Second operand 4 states. [2019-09-16 17:26:28,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:28,051 INFO L93 Difference]: Finished difference Result 28456 states and 39259 transitions. [2019-09-16 17:26:28,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:26:28,051 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 294 [2019-09-16 17:26:28,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:28,147 INFO L225 Difference]: With dead ends: 28456 [2019-09-16 17:26:28,148 INFO L226 Difference]: Without dead ends: 28456 [2019-09-16 17:26:28,148 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:26:28,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28456 states. [2019-09-16 17:26:28,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28456 to 28376. [2019-09-16 17:26:28,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28376 states. [2019-09-16 17:26:28,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28376 states to 28376 states and 39179 transitions. [2019-09-16 17:26:28,762 INFO L78 Accepts]: Start accepts. Automaton has 28376 states and 39179 transitions. Word has length 294 [2019-09-16 17:26:28,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:28,763 INFO L475 AbstractCegarLoop]: Abstraction has 28376 states and 39179 transitions. [2019-09-16 17:26:28,763 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:26:28,763 INFO L276 IsEmpty]: Start isEmpty. Operand 28376 states and 39179 transitions. [2019-09-16 17:26:28,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2019-09-16 17:26:28,782 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:28,782 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:28,783 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:28,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:28,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1544576975, now seen corresponding path program 1 times [2019-09-16 17:26:28,783 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:28,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:28,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:28,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:28,792 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:29,348 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-09-16 17:26:29,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:29,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-16 17:26:29,349 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:29,351 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-16 17:26:29,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-16 17:26:29,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:26:29,353 INFO L87 Difference]: Start difference. First operand 28376 states and 39179 transitions. Second operand 13 states. [2019-09-16 17:26:32,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:32,651 INFO L93 Difference]: Finished difference Result 40270 states and 55356 transitions. [2019-09-16 17:26:32,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-09-16 17:26:32,652 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 294 [2019-09-16 17:26:32,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:32,762 INFO L225 Difference]: With dead ends: 40270 [2019-09-16 17:26:32,763 INFO L226 Difference]: Without dead ends: 40270 [2019-09-16 17:26:32,763 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2019-09-16 17:26:32,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40270 states. [2019-09-16 17:26:33,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40270 to 28546. [2019-09-16 17:26:33,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28546 states. [2019-09-16 17:26:33,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28546 states to 28546 states and 39419 transitions. [2019-09-16 17:26:33,475 INFO L78 Accepts]: Start accepts. Automaton has 28546 states and 39419 transitions. Word has length 294 [2019-09-16 17:26:33,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:33,476 INFO L475 AbstractCegarLoop]: Abstraction has 28546 states and 39419 transitions. [2019-09-16 17:26:33,476 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-16 17:26:33,476 INFO L276 IsEmpty]: Start isEmpty. Operand 28546 states and 39419 transitions. [2019-09-16 17:26:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2019-09-16 17:26:33,489 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:33,489 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:33,490 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:33,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:33,490 INFO L82 PathProgramCache]: Analyzing trace with hash -294846167, now seen corresponding path program 1 times [2019-09-16 17:26:33,490 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:33,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:33,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:33,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:33,499 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-09-16 17:26:33,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:33,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:26:33,904 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:33,904 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:26:33,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:26:33,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:26:33,905 INFO L87 Difference]: Start difference. First operand 28546 states and 39419 transitions. Second operand 8 states. [2019-09-16 17:26:34,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:34,142 INFO L93 Difference]: Finished difference Result 28436 states and 39239 transitions. [2019-09-16 17:26:34,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:26:34,142 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 299 [2019-09-16 17:26:34,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:34,217 INFO L225 Difference]: With dead ends: 28436 [2019-09-16 17:26:34,217 INFO L226 Difference]: Without dead ends: 28436 [2019-09-16 17:26:34,217 INFO L636 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 [2019-09-16 17:26:34,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28436 states. [2019-09-16 17:26:34,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28436 to 28416. [2019-09-16 17:26:34,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28416 states. [2019-09-16 17:26:34,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28416 states to 28416 states and 39219 transitions. [2019-09-16 17:26:34,965 INFO L78 Accepts]: Start accepts. Automaton has 28416 states and 39219 transitions. Word has length 299 [2019-09-16 17:26:34,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:34,966 INFO L475 AbstractCegarLoop]: Abstraction has 28416 states and 39219 transitions. [2019-09-16 17:26:34,966 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:26:34,966 INFO L276 IsEmpty]: Start isEmpty. Operand 28416 states and 39219 transitions. [2019-09-16 17:26:34,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2019-09-16 17:26:34,975 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:34,977 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:34,977 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:34,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:34,977 INFO L82 PathProgramCache]: Analyzing trace with hash -880096059, now seen corresponding path program 1 times [2019-09-16 17:26:34,978 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:34,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:34,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:34,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:34,986 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:35,607 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2019-09-16 17:26:35,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:35,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-16 17:26:35,611 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:35,614 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-16 17:26:35,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-16 17:26:35,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:26:35,615 INFO L87 Difference]: Start difference. First operand 28416 states and 39219 transitions. Second operand 13 states. [2019-09-16 17:26:37,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:37,972 INFO L93 Difference]: Finished difference Result 39790 states and 54536 transitions. [2019-09-16 17:26:37,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-16 17:26:37,973 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 310 [2019-09-16 17:26:37,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:38,076 INFO L225 Difference]: With dead ends: 39790 [2019-09-16 17:26:38,076 INFO L226 Difference]: Without dead ends: 39790 [2019-09-16 17:26:38,077 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-09-16 17:26:38,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39790 states. [2019-09-16 17:26:38,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39790 to 28446. [2019-09-16 17:26:38,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28446 states. [2019-09-16 17:26:38,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28446 states to 28446 states and 39239 transitions. [2019-09-16 17:26:38,603 INFO L78 Accepts]: Start accepts. Automaton has 28446 states and 39239 transitions. Word has length 310 [2019-09-16 17:26:38,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:38,603 INFO L475 AbstractCegarLoop]: Abstraction has 28446 states and 39239 transitions. [2019-09-16 17:26:38,603 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-16 17:26:38,603 INFO L276 IsEmpty]: Start isEmpty. Operand 28446 states and 39239 transitions. [2019-09-16 17:26:38,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-09-16 17:26:38,611 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:38,612 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:38,612 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:38,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:38,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1651292829, now seen corresponding path program 1 times [2019-09-16 17:26:38,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:38,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:38,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:38,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:38,621 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:39,023 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2019-09-16 17:26:39,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:26:39,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:26:39,024 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:39,024 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:26:39,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:26:39,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:26:39,025 INFO L87 Difference]: Start difference. First operand 28446 states and 39239 transitions. Second operand 6 states. [2019-09-16 17:26:40,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:40,683 INFO L93 Difference]: Finished difference Result 39800 states and 54546 transitions. [2019-09-16 17:26:40,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-16 17:26:40,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 315 [2019-09-16 17:26:40,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:40,961 INFO L225 Difference]: With dead ends: 39800 [2019-09-16 17:26:40,961 INFO L226 Difference]: Without dead ends: 39800 [2019-09-16 17:26:40,962 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:26:40,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39800 states. [2019-09-16 17:26:41,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39800 to 28516. [2019-09-16 17:26:41,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28516 states. [2019-09-16 17:26:41,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28516 states to 28516 states and 39344 transitions. [2019-09-16 17:26:41,408 INFO L78 Accepts]: Start accepts. Automaton has 28516 states and 39344 transitions. Word has length 315 [2019-09-16 17:26:41,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:41,409 INFO L475 AbstractCegarLoop]: Abstraction has 28516 states and 39344 transitions. [2019-09-16 17:26:41,409 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:26:41,409 INFO L276 IsEmpty]: Start isEmpty. Operand 28516 states and 39344 transitions. [2019-09-16 17:26:41,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-09-16 17:26:41,413 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:26:41,413 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:26:41,414 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:26:41,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:41,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1804640805, now seen corresponding path program 1 times [2019-09-16 17:26:41,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:26:41,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:41,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:26:41,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:26:41,422 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:26:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:26:42,091 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-09-16 17:26:42,091 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:26:42,092 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:26:42,093 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 316 with the following transitions: [2019-09-16 17:26:42,097 INFO L207 CegarAbsIntRunner]: [45], [47], [51], [53], [54], [129], [174], [180], [181], [182], [183], [188], [189], [268], [269], [276], [305], [307], [308], [362], [364], [366], [367], [375], [389], [424], [425], [437], [443], [444], [445], [474], [479], [481], [486], [488], [493], [498], [499], [500], [501], [502], [503], [625], [626], [633], [635], [636], [781], [783], [785], [787], [791], [793], [797], [809], [833], [836], [840], [844], [849], [856], [859], [863], [864], [977], [980], [984], [987], [991], [992], [1140], [1155], [1157], [1162], [1164], [1169], [1174], [1187], [1190], [1196], [1200], [1212], [1221], [1223], [1226], [1309], [1311], [1312], [1313], [1314], [1337], [1340], [1429], [1432], [1451], [1453], [1455], [1459], [1461], [1465], [1467], [1470], [1511], [1513], [1519], [1521], [1522], [1523], [1524], [1544], [1546], [1547], [1731], [1733], [1734], [1740], [1741], [1746], [1748], [1750], [1752], [1755], [1757], [1759], [1771], [1774], [1777], [1789], [1792], [1795], [1797], [1800], [1808], [1827], [1830], [1833], [1846], [1859], [1872], [1875], [1878], [1912], [1915], [1918], [1921], [1924], [1926], [1931], [2101], [2107], [2113], [2116], [2187], [2188], [2235], [2237], [2239], [2242], [2245], [2248], [2251], [2309], [2311], [2314], [2319], [2320], [2327], [2340], [2342], [2344], [2350], [2353], [2356], [2500], [2501], [2540], [2541], [2542], [2543], [2584], [2628], [2636], [2637], [2660], [2661], [2662], [2663], [2668], [2702], [2703], [2730], [2731], [2732], [2733], [2734], [2735], [2736], [2737], [2740], [2741], [2838], [2839], [2840], [2850], [2851], [2852], [2868], [2869], [2872], [2920], [2921], [2922], [2923], [2924], [2928], [2929], [2930], [2931], [2932], [2933], [2934], [2935], [2966], [2967], [2982], [2983], [3036], [3037], [3040], [3041], [3042], [3043], [3044], [3045], [3046], [3047], [3048], [3049], [3050], [3051], [3056], [3057], [3066], [3072], [3073], [3114], [3152], [3153], [3168], [3169], [3170], [3171], [3176], [3177], [3180], [3181], [3182], [3230], [3231], [3232] [2019-09-16 17:26:42,164 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:26:42,165 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:26:42,362 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:26:42,363 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 268 root evaluator evaluations with a maximum evaluation depth of 0. Performed 268 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 508 variables. [2019-09-16 17:26:42,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:26:42,368 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:26:42,496 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-16 17:26:42,496 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:26:42,503 INFO L420 sIntCurrentIteration]: We unified 314 AI predicates to 314 [2019-09-16 17:26:42,503 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:26:42,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:26:42,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2019-09-16 17:26:42,505 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:26:42,506 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:26:42,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:26:42,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:26:42,506 INFO L87 Difference]: Start difference. First operand 28516 states and 39344 transitions. Second operand 2 states. [2019-09-16 17:26:42,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:26:42,507 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-16 17:26:42,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:26:42,507 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 315 [2019-09-16 17:26:42,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:26:42,508 INFO L225 Difference]: With dead ends: 2 [2019-09-16 17:26:42,508 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:26:42,508 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:26:42,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:26:42,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:26:42,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:26:42,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:26:42,509 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 315 [2019-09-16 17:26:42,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:26:42,509 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:26:42,509 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:26:42,509 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:26:42,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:26:42,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:26:42 BoogieIcfgContainer [2019-09-16 17:26:42,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:26:42,517 INFO L168 Benchmark]: Toolchain (without parser) took 61595.11 ms. Allocated memory was 130.0 MB in the beginning and 2.0 GB in the end (delta: 1.9 GB). Free memory was 75.8 MB in the beginning and 948.8 MB in the end (delta: -873.0 MB). Peak memory consumption was 984.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:26:42,518 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 130.0 MB. Free memory was 104.1 MB in the beginning and 103.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-16 17:26:42,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2754.05 ms. Allocated memory was 130.0 MB in the beginning and 284.7 MB in the end (delta: 154.7 MB). Free memory was 75.6 MB in the beginning and 165.8 MB in the end (delta: -90.2 MB). Peak memory consumption was 121.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:26:42,519 INFO L168 Benchmark]: Boogie Preprocessor took 350.91 ms. Allocated memory is still 284.7 MB. Free memory was 165.8 MB in the beginning and 136.4 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:26:42,520 INFO L168 Benchmark]: RCFGBuilder took 9064.57 ms. Allocated memory was 284.7 MB in the beginning and 488.1 MB in the end (delta: 203.4 MB). Free memory was 136.4 MB in the beginning and 197.2 MB in the end (delta: -60.9 MB). Peak memory consumption was 221.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:26:42,521 INFO L168 Benchmark]: TraceAbstraction took 49421.03 ms. Allocated memory was 488.1 MB in the beginning and 2.0 GB in the end (delta: 1.5 GB). Free memory was 197.2 MB in the beginning and 948.8 MB in the end (delta: -751.5 MB). Peak memory consumption was 747.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:26:42,524 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 130.0 MB. Free memory was 104.1 MB in the beginning and 103.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2754.05 ms. Allocated memory was 130.0 MB in the beginning and 284.7 MB in the end (delta: 154.7 MB). Free memory was 75.6 MB in the beginning and 165.8 MB in the end (delta: -90.2 MB). Peak memory consumption was 121.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 350.91 ms. Allocated memory is still 284.7 MB. Free memory was 165.8 MB in the beginning and 136.4 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9064.57 ms. Allocated memory was 284.7 MB in the beginning and 488.1 MB in the end (delta: 203.4 MB). Free memory was 136.4 MB in the beginning and 197.2 MB in the end (delta: -60.9 MB). Peak memory consumption was 221.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 49421.03 ms. Allocated memory was 488.1 MB in the beginning and 2.0 GB in the end (delta: 1.5 GB). Free memory was 197.2 MB in the beginning and 948.8 MB in the end (delta: -751.5 MB). Peak memory consumption was 747.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7385]: 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 180 procedures, 1502 locations, 1 error locations. SAFE Result, 49.3s OverallTime, 18 OverallIterations, 4 TraceHistogramMax, 27.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36908 SDtfs, 15951 SDslu, 157290 SDs, 0 SdLazy, 2959 SolverSat, 216 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 19.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 472 GetRequests, 354 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28546occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 3.0573248407643314 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 11.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 35104 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 4338 NumberOfCodeBlocks, 4338 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4320 ConstructedInterpolants, 0 QuantifiedInterpolants, 1506577 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 17 PerfectInterpolantSequences, 1257/1260 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...