java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-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 16:59:51,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 16:59:51,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 16:59:51,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 16:59:51,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 16:59:51,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 16:59:51,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 16:59:51,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 16:59:51,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 16:59:51,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 16:59:51,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 16:59:51,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 16:59:51,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 16:59:51,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 16:59:51,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 16:59:51,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 16:59:51,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 16:59:51,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 16:59:51,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 16:59:51,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 16:59:51,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 16:59:51,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 16:59:51,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 16:59:51,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 16:59:51,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 16:59:51,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 16:59:51,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 16:59:51,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 16:59:51,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 16:59:51,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 16:59:51,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 16:59:51,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 16:59:51,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 16:59:51,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 16:59:51,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 16:59:51,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 16:59:51,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 16:59:51,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 16:59:51,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 16:59:51,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 16:59:51,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 16:59:51,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-16 16:59:51,772 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 16:59:51,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 16:59:51,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-16 16:59:51,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-16 16:59:51,774 INFO L138 SettingsManager]: * Use SBE=true [2019-09-16 16:59:51,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 16:59:51,775 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 16:59:51,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-16 16:59:51,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 16:59:51,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 16:59:51,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 16:59:51,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 16:59:51,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 16:59:51,776 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 16:59:51,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 16:59:51,777 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-16 16:59:51,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 16:59:51,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 16:59:51,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 16:59:51,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-16 16:59:51,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-16 16:59:51,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 16:59:51,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 16:59:51,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 16:59:51,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-16 16:59:51,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-16 16:59:51,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 16:59:51,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-16 16:59:51,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 16:59:51,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 16:59:51,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 16:59:51,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 16:59:51,828 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 16:59:51,829 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 16:59:51,829 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2019-09-16 16:59:51,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43faeadcf/dfd9fed53b214297940f2b4fc9974358/FLAG6d4acc025 [2019-09-16 16:59:52,771 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 16:59:52,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2019-09-16 16:59:52,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43faeadcf/dfd9fed53b214297940f2b4fc9974358/FLAG6d4acc025 [2019-09-16 16:59:53,227 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43faeadcf/dfd9fed53b214297940f2b4fc9974358 [2019-09-16 16:59:53,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 16:59:53,240 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 16:59:53,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 16:59:53,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 16:59:53,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 16:59:53,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:59:53" (1/1) ... [2019-09-16 16:59:53,250 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 04:59:53, skipping insertion in model container [2019-09-16 16:59:53,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:59:53" (1/1) ... [2019-09-16 16:59:53,258 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 16:59:53,382 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 16:59:55,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:59:55,499 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 16:59:55,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:59:56,241 INFO L192 MainTranslator]: Completed translation [2019-09-16 16:59:56,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:59:56 WrapperNode [2019-09-16 16:59:56,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 16:59:56,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 16:59:56,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 16:59:56,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 16:59:56,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:59:56" (1/1) ... [2019-09-16 16:59:56,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:59:56" (1/1) ... [2019-09-16 16:59:56,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:59:56" (1/1) ... [2019-09-16 16:59:56,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:59:56" (1/1) ... [2019-09-16 16:59:56,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:59:56" (1/1) ... [2019-09-16 16:59:56,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:59:56" (1/1) ... [2019-09-16 16:59:56,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:59:56" (1/1) ... [2019-09-16 16:59:56,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 16:59:56,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 16:59:56,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 16:59:56,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 16:59:56,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:59:56" (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 16:59:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 16:59:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 16:59:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-09-16 16:59:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-09-16 16:59:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2019-09-16 16:59:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2019-09-16 16:59:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-09-16 16:59:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-09-16 16:59:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-09-16 16:59:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-09-16 16:59:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-09-16 16:59:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-09-16 16:59:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-09-16 16:59:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-09-16 16:59:56,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-09-16 16:59:56,649 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-09-16 16:59:56,649 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-09-16 16:59:56,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2019-09-16 16:59:56,649 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-09-16 16:59:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-09-16 16:59:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-09-16 16:59:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-09-16 16:59:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2019-09-16 16:59:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2019-09-16 16:59:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ss_max_streams [2019-09-16 16:59:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-09-16 16:59:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-09-16 16:59:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-09-16 16:59:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2019-09-16 16:59:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-09-16 16:59:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-09-16 16:59:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_pipe_endpoint [2019-09-16 16:59:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_bus [2019-09-16 16:59:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_to_hcd [2019-09-16 16:59:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bidi_cmnd [2019-09-16 16:59:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_in [2019-09-16 16:59:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_out [2019-09-16 16:59:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_use_blk_mq [2019-09-16 16:59:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_add_host [2019-09-16 16:59:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_init_shared_tag_map [2019-09-16 16:59:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_is_interface [2019-09-16 16:59:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_find_uas_alt_setting [2019-09-16 16:59:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_find_endpoints [2019-09-16 16:59:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_use_uas_driver [2019-09-16 16:59:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_do_work [2019-09-16 16:59:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_add_work [2019-09-16 16:59:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_zap_pending [2019-09-16 16:59:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_sense [2019-09-16 16:59:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_log_cmd_state [2019-09-16 16:59:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_free_unsubmitted_urbs [2019-09-16 16:59:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_try_complete [2019-09-16 16:59:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_xfer_data [2019-09-16 16:59:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_stat_cmplt [2019-09-16 16:59:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_data_cmplt [2019-09-16 16:59:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_cmd_cmplt [2019-09-16 16:59:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_alloc_data_urb [2019-09-16 16:59:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_alloc_sense_urb [2019-09-16 16:59:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_alloc_cmd_urb [2019-09-16 16:59:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_submit_sense_urb [2019-09-16 16:59:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_submit_urbs [2019-09-16 16:59:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_queuecommand_lck [2019-09-16 16:59:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_queuecommand [2019-09-16 16:59:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_eh_abort_handler [2019-09-16 16:59:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_eh_bus_reset_handler [2019-09-16 16:59:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_slave_alloc [2019-09-16 16:59:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_slave_configure [2019-09-16 16:59:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_switch_interface [2019-09-16 16:59:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_configure_endpoints [2019-09-16 16:59:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_free_streams [2019-09-16 16:59:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_probe [2019-09-16 16:59:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_cmnd_list_empty [2019-09-16 16:59:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_wait_for_pending_cmnds [2019-09-16 16:59:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_pre_reset [2019-09-16 16:59:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_post_reset [2019-09-16 16:59:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_suspend [2019-09-16 16:59:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_resume [2019-09-16 16:59:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_reset_resume [2019-09-16 16:59:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_disconnect [2019-09-16 16:59:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_shutdown [2019-09-16 16:59:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_driver_init [2019-09-16 16:59:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_driver_exit [2019-09-16 16:59:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-09-16 16:59:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-09-16 16:59:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-09-16 16:59:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-09-16 16:59:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-09-16 16:59:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-09-16 16:59:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2019-09-16 16:59:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-09-16 16:59:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 16:59:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-09-16 16:59:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_15 [2019-09-16 16:59:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_16 [2019-09-16 16:59:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_17 [2019-09-16 16:59:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_18 [2019-09-16 16:59:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_19 [2019-09-16 16:59:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_25 [2019-09-16 16:59:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-09-16 16:59:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_scsi_add_host_with_dma_29 [2019-09-16 16:59:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_30 [2019-09-16 16:59:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_31 [2019-09-16 16:59:56,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_32 [2019-09-16 16:59:56,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_33 [2019-09-16 16:59:56,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_34 [2019-09-16 16:59:56,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_35 [2019-09-16 16:59:56,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_36 [2019-09-16 16:59:56,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_scsi_host_alloc_37 [2019-09-16 16:59:56,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_work_38 [2019-09-16 16:59:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_39 [2019-09-16 16:59:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_scsi_remove_host_40 [2019-09-16 16:59:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_41 [2019-09-16 16:59:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_42 [2019-09-16 16:59:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-09-16 16:59:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-09-16 16:59:56,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-09-16 16:59:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-09-16 16:59:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-09-16 16:59:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-09-16 16:59:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-09-16 16:59:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-09-16 16:59:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-09-16 16:59:56,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-09-16 16:59:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-09-16 16:59:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-09-16 16:59:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-09-16 16:59:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-09-16 16:59:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-09-16 16:59:56,666 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_init_tags [2019-09-16 16:59:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2019-09-16 16:59:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_update_dma_alignment [2019-09-16 16:59:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2019-09-16 16:59:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-09-16 16:59:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2019-09-16 16:59:56,667 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-09-16 16:59:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2019-09-16 16:59:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-09-16 16:59:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure int_to_scsilun [2019-09-16 16:59:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-09-16 16:59:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-09-16 16:59:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-09-16 16:59:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2019-09-16 16:59:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-09-16 16:59:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-16 16:59:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-09-16 16:59:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-09-16 16:59:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure scmd_printk [2019-09-16 16:59:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_add_host_with_dma [2019-09-16 16:59:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_requests [2019-09-16 16:59:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_change_queue_depth [2019-09-16 16:59:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_get_serial [2019-09-16 16:59:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_alloc [2019-09-16 16:59:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2019-09-16 16:59:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_print_command [2019-09-16 16:59:56,670 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2019-09-16 16:59:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_report_bus_reset [2019-09-16 16:59:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_scan_host [2019-09-16 16:59:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unblock_requests [2019-09-16 16:59:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_prefix_printk [2019-09-16 16:59:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_streams [2019-09-16 16:59:56,671 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2019-09-16 16:59:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-09-16 16:59:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_streams [2019-09-16 16:59:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-09-16 16:59:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_urb [2019-09-16 16:59:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2019-09-16 16:59:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-09-16 16:59:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_lock_device_for_reset [2019-09-16 16:59:56,672 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-09-16 16:59:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2019-09-16 16:59:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2019-09-16 16:59:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_stor_adjust_quirks [2019-09-16 16:59:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2019-09-16 16:59:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2019-09-16 16:59:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wait_anchor_empty_timeout [2019-09-16 16:59:56,673 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-09-16 16:59:56,674 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-09-16 16:59:56,674 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-09-16 16:59:56,674 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-09-16 16:59:56,674 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-09-16 16:59:56,674 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-09-16 16:59:56,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 16:59:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-09-16 16:59:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-09-16 16:59:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2019-09-16 16:59:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 16:59:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2019-09-16 16:59:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-09-16 16:59:56,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-09-16 16:59:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 16:59:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 16:59:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-09-16 16:59:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 16:59:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-09-16 16:59:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-16 16:59:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-16 16:59:56,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-09-16 16:59:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 16:59:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-09-16 16:59:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-09-16 16:59:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-09-16 16:59:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-09-16 16:59:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-09-16 16:59:56,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-09-16 16:59:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-09-16 16:59:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-09-16 16:59:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-09-16 16:59:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-09-16 16:59:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 16:59:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-09-16 16:59:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-09-16 16:59:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-09-16 16:59:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2019-09-16 16:59:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-09-16 16:59:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-09-16 16:59:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-09-16 16:59:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2019-09-16 16:59:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-09-16 16:59:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-09-16 16:59:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-16 16:59:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-09-16 16:59:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-09-16 16:59:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_15 [2019-09-16 16:59:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_17 [2019-09-16 16:59:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-09-16 16:59:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_16 [2019-09-16 16:59:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_19 [2019-09-16 16:59:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-09-16 16:59:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_18 [2019-09-16 16:59:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2019-09-16 16:59:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_work_38 [2019-09-16 16:59:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2019-09-16 16:59:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_39 [2019-09-16 16:59:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-09-16 16:59:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-09-16 16:59:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_25 [2019-09-16 16:59:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-09-16 16:59:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-09-16 16:59:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-09-16 16:59:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-09-16 16:59:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-09-16 16:59:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-09-16 16:59:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-09-16 16:59:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-09-16 16:59:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2019-09-16 16:59:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-09-16 16:59:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-09-16 16:59:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 16:59:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-09-16 16:59:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2019-09-16 16:59:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2019-09-16 16:59:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-09-16 16:59:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-09-16 16:59:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2019-09-16 16:59:56,684 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_update_dma_alignment [2019-09-16 16:59:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure blk_init_tags [2019-09-16 16:59:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2019-09-16 16:59:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ss_max_streams [2019-09-16 16:59:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-09-16 16:59:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-09-16 16:59:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-09-16 16:59:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure usb_lock_device_for_reset [2019-09-16 16:59:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2019-09-16 16:59:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_streams [2019-09-16 16:59:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_streams [2019-09-16 16:59:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-09-16 16:59:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_41 [2019-09-16 16:59:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-09-16 16:59:56,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_42 [2019-09-16 16:59:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2019-09-16 16:59:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 16:59:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 16:59:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-09-16 16:59:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 16:59:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_30 [2019-09-16 16:59:56,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_31 [2019-09-16 16:59:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_32 [2019-09-16 16:59:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-09-16 16:59:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_urb [2019-09-16 16:59:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_33 [2019-09-16 16:59:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_34 [2019-09-16 16:59:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_35 [2019-09-16 16:59:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_36 [2019-09-16 16:59:56,688 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2019-09-16 16:59:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-09-16 16:59:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2019-09-16 16:59:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2019-09-16 16:59:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2019-09-16 16:59:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wait_anchor_empty_timeout [2019-09-16 16:59:56,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2019-09-16 16:59:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-09-16 16:59:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure usb_pipe_endpoint [2019-09-16 16:59:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_bus [2019-09-16 16:59:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure bus_to_hcd [2019-09-16 16:59:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure int_to_scsilun [2019-09-16 16:59:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_prefix_printk [2019-09-16 16:59:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure scmd_printk [2019-09-16 16:59:56,690 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_change_queue_depth [2019-09-16 16:59:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bidi_cmnd [2019-09-16 16:59:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_in [2019-09-16 16:59:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_out [2019-09-16 16:59:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_report_bus_reset [2019-09-16 16:59:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_print_command [2019-09-16 16:59:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure shost_use_blk_mq [2019-09-16 16:59:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_alloc [2019-09-16 16:59:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_scsi_host_alloc_37 [2019-09-16 16:59:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_add_host_with_dma [2019-09-16 16:59:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_scsi_add_host_with_dma_29 [2019-09-16 16:59:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_scan_host [2019-09-16 16:59:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2019-09-16 16:59:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_scsi_remove_host_40 [2019-09-16 16:59:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2019-09-16 16:59:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_get_serial [2019-09-16 16:59:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_add_host [2019-09-16 16:59:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unblock_requests [2019-09-16 16:59:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_requests [2019-09-16 16:59:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_init_shared_tag_map [2019-09-16 16:59:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure usb_stor_adjust_quirks [2019-09-16 16:59:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure uas_is_interface [2019-09-16 16:59:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure uas_find_uas_alt_setting [2019-09-16 16:59:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure uas_find_endpoints [2019-09-16 16:59:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure uas_use_uas_driver [2019-09-16 16:59:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure uas_submit_urbs [2019-09-16 16:59:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure uas_do_work [2019-09-16 16:59:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure uas_try_complete [2019-09-16 16:59:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure uas_free_streams [2019-09-16 16:59:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure uas_log_cmd_state [2019-09-16 16:59:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure uas_add_work [2019-09-16 16:59:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure uas_zap_pending [2019-09-16 16:59:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure uas_sense [2019-09-16 16:59:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-09-16 16:59:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure uas_free_unsubmitted_urbs [2019-09-16 16:59:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-09-16 16:59:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure uas_xfer_data [2019-09-16 16:59:56,695 INFO L130 BoogieDeclarations]: Found specification of procedure uas_stat_cmplt [2019-09-16 16:59:56,696 INFO L130 BoogieDeclarations]: Found specification of procedure uas_data_cmplt [2019-09-16 16:59:56,696 INFO L130 BoogieDeclarations]: Found specification of procedure uas_cmd_cmplt [2019-09-16 16:59:56,696 INFO L130 BoogieDeclarations]: Found specification of procedure uas_alloc_data_urb [2019-09-16 16:59:56,696 INFO L130 BoogieDeclarations]: Found specification of procedure uas_alloc_sense_urb [2019-09-16 16:59:56,696 INFO L130 BoogieDeclarations]: Found specification of procedure uas_alloc_cmd_urb [2019-09-16 16:59:56,696 INFO L130 BoogieDeclarations]: Found specification of procedure uas_submit_sense_urb [2019-09-16 16:59:56,696 INFO L130 BoogieDeclarations]: Found specification of procedure uas_queuecommand_lck [2019-09-16 16:59:56,696 INFO L130 BoogieDeclarations]: Found specification of procedure uas_queuecommand [2019-09-16 16:59:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure uas_eh_abort_handler [2019-09-16 16:59:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure uas_eh_bus_reset_handler [2019-09-16 16:59:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure uas_slave_alloc [2019-09-16 16:59:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure uas_slave_configure [2019-09-16 16:59:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure uas_switch_interface [2019-09-16 16:59:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure uas_configure_endpoints [2019-09-16 16:59:56,697 INFO L130 BoogieDeclarations]: Found specification of procedure uas_probe [2019-09-16 16:59:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure uas_cmnd_list_empty [2019-09-16 16:59:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure uas_wait_for_pending_cmnds [2019-09-16 16:59:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure uas_pre_reset [2019-09-16 16:59:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure uas_post_reset [2019-09-16 16:59:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure uas_suspend [2019-09-16 16:59:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure uas_resume [2019-09-16 16:59:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure uas_reset_resume [2019-09-16 16:59:56,698 INFO L130 BoogieDeclarations]: Found specification of procedure uas_disconnect [2019-09-16 16:59:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure uas_shutdown [2019-09-16 16:59:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure uas_driver_init [2019-09-16 16:59:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure uas_driver_exit [2019-09-16 16:59:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-09-16 16:59:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-09-16 16:59:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 16:59:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-09-16 16:59:56,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-09-16 16:59:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-09-16 16:59:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-09-16 16:59:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-09-16 16:59:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-09-16 16:59:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-09-16 16:59:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-09-16 16:59:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-09-16 16:59:56,700 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-09-16 16:59:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-16 16:59:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 16:59:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-09-16 16:59:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 16:59:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 16:59:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-16 16:59:56,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 16:59:56,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-09-16 16:59:56,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-09-16 16:59:56,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-09-16 16:59:56,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-09-16 16:59:57,931 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-09-16 17:00:04,681 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:00:04,681 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-16 17:00:04,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:00:04 BoogieIcfgContainer [2019-09-16 17:00:04,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:00:04,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:00:04,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:00:04,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:00:04,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 04:59:53" (1/3) ... [2019-09-16 17:00:04,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776505ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:00:04, skipping insertion in model container [2019-09-16 17:00:04,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:59:56" (2/3) ... [2019-09-16 17:00:04,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776505ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:00:04, skipping insertion in model container [2019-09-16 17:00:04,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:00:04" (3/3) ... [2019-09-16 17:00:04,692 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 17:00:04,702 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:00:04,715 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:00:04,742 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:00:04,790 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-16 17:00:04,791 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:00:04,791 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-16 17:00:04,791 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:00:04,791 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:00:04,791 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:00:04,792 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:00:04,792 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:00:04,792 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:00:04,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states. [2019-09-16 17:00:04,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-16 17:00:04,863 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:04,865 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:04,867 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:04,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:04,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1026234484, now seen corresponding path program 1 times [2019-09-16 17:00:04,875 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:04,876 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:04,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:04,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:04,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-09-16 17:00:06,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:06,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:00:06,134 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:00:06,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:00:06,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:00:06,152 INFO L87 Difference]: Start difference. First operand 1413 states. Second operand 3 states. [2019-09-16 17:00:06,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:06,661 INFO L93 Difference]: Finished difference Result 3953 states and 5370 transitions. [2019-09-16 17:00:06,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:00:06,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2019-09-16 17:00:06,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:06,821 INFO L225 Difference]: With dead ends: 3953 [2019-09-16 17:00:06,821 INFO L226 Difference]: Without dead ends: 2587 [2019-09-16 17:00:06,869 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 17:00:06,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2019-09-16 17:00:07,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2584. [2019-09-16 17:00:07,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2584 states. [2019-09-16 17:00:07,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3441 transitions. [2019-09-16 17:00:07,208 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3441 transitions. Word has length 103 [2019-09-16 17:00:07,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:07,209 INFO L475 AbstractCegarLoop]: Abstraction has 2584 states and 3441 transitions. [2019-09-16 17:00:07,209 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:00:07,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3441 transitions. [2019-09-16 17:00:07,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-09-16 17:00:07,223 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:07,224 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:07,224 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:07,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:07,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1591803613, now seen corresponding path program 1 times [2019-09-16 17:00:07,225 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:07,225 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:07,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:07,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:07,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:07,642 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-09-16 17:00:07,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:07,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:00:07,645 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:00:07,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:00:07,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:00:07,645 INFO L87 Difference]: Start difference. First operand 2584 states and 3441 transitions. Second operand 5 states. [2019-09-16 17:00:12,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:12,045 INFO L93 Difference]: Finished difference Result 6420 states and 8692 transitions. [2019-09-16 17:00:12,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:00:12,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2019-09-16 17:00:12,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:12,073 INFO L225 Difference]: With dead ends: 6420 [2019-09-16 17:00:12,074 INFO L226 Difference]: Without dead ends: 3863 [2019-09-16 17:00:12,086 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 17:00:12,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3863 states. [2019-09-16 17:00:12,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3863 to 3856. [2019-09-16 17:00:12,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3856 states. [2019-09-16 17:00:12,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 5177 transitions. [2019-09-16 17:00:12,253 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 5177 transitions. Word has length 105 [2019-09-16 17:00:12,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:12,254 INFO L475 AbstractCegarLoop]: Abstraction has 3856 states and 5177 transitions. [2019-09-16 17:00:12,254 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:00:12,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 5177 transitions. [2019-09-16 17:00:12,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-16 17:00:12,258 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:12,258 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:12,258 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:12,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:12,259 INFO L82 PathProgramCache]: Analyzing trace with hash 483869064, now seen corresponding path program 1 times [2019-09-16 17:00:12,259 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:12,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:12,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:12,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:12,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:12,656 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-09-16 17:00:12,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:12,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:00:12,659 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:00:12,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:00:12,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:00:12,660 INFO L87 Difference]: Start difference. First operand 3856 states and 5177 transitions. Second operand 3 states. [2019-09-16 17:00:13,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:13,031 INFO L93 Difference]: Finished difference Result 8938 states and 12137 transitions. [2019-09-16 17:00:13,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:00:13,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2019-09-16 17:00:13,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:13,086 INFO L225 Difference]: With dead ends: 8938 [2019-09-16 17:00:13,086 INFO L226 Difference]: Without dead ends: 5109 [2019-09-16 17:00:13,108 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 17:00:13,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5109 states. [2019-09-16 17:00:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5109 to 5106. [2019-09-16 17:00:13,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5106 states. [2019-09-16 17:00:13,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5106 states to 5106 states and 6902 transitions. [2019-09-16 17:00:13,366 INFO L78 Accepts]: Start accepts. Automaton has 5106 states and 6902 transitions. Word has length 102 [2019-09-16 17:00:13,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:13,366 INFO L475 AbstractCegarLoop]: Abstraction has 5106 states and 6902 transitions. [2019-09-16 17:00:13,366 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:00:13,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5106 states and 6902 transitions. [2019-09-16 17:00:13,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-16 17:00:13,376 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:13,376 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:13,377 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:13,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:13,377 INFO L82 PathProgramCache]: Analyzing trace with hash -529540655, now seen corresponding path program 1 times [2019-09-16 17:00:13,377 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:13,377 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:13,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:13,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:13,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:13,741 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-09-16 17:00:13,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:13,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:00:13,743 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:00:13,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:00:13,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:00:13,743 INFO L87 Difference]: Start difference. First operand 5106 states and 6902 transitions. Second operand 5 states. [2019-09-16 17:00:17,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:17,266 INFO L93 Difference]: Finished difference Result 11457 states and 15747 transitions. [2019-09-16 17:00:17,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:00:17,267 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2019-09-16 17:00:17,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:17,317 INFO L225 Difference]: With dead ends: 11457 [2019-09-16 17:00:17,317 INFO L226 Difference]: Without dead ends: 6378 [2019-09-16 17:00:17,348 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 17:00:17,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6378 states. [2019-09-16 17:00:17,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6378 to 6371. [2019-09-16 17:00:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6371 states. [2019-09-16 17:00:17,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6371 states to 6371 states and 8638 transitions. [2019-09-16 17:00:17,618 INFO L78 Accepts]: Start accepts. Automaton has 6371 states and 8638 transitions. Word has length 104 [2019-09-16 17:00:17,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:17,619 INFO L475 AbstractCegarLoop]: Abstraction has 6371 states and 8638 transitions. [2019-09-16 17:00:17,619 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:00:17,619 INFO L276 IsEmpty]: Start isEmpty. Operand 6371 states and 8638 transitions. [2019-09-16 17:00:17,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-09-16 17:00:17,624 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:17,624 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:17,624 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:17,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:17,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1682943714, now seen corresponding path program 1 times [2019-09-16 17:00:17,625 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:17,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:17,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:17,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:17,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:17,883 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-09-16 17:00:17,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:17,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:00:17,885 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:00:17,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:00:17,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:00:17,886 INFO L87 Difference]: Start difference. First operand 6371 states and 8638 transitions. Second operand 3 states. [2019-09-16 17:00:18,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:18,537 INFO L93 Difference]: Finished difference Result 18309 states and 24949 transitions. [2019-09-16 17:00:18,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:00:18,537 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-09-16 17:00:18,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:18,620 INFO L225 Difference]: With dead ends: 18309 [2019-09-16 17:00:18,620 INFO L226 Difference]: Without dead ends: 11965 [2019-09-16 17:00:18,651 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 17:00:18,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11965 states. [2019-09-16 17:00:19,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11965 to 11847. [2019-09-16 17:00:19,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11847 states. [2019-09-16 17:00:19,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11847 states to 11847 states and 16190 transitions. [2019-09-16 17:00:19,198 INFO L78 Accepts]: Start accepts. Automaton has 11847 states and 16190 transitions. Word has length 132 [2019-09-16 17:00:19,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:19,198 INFO L475 AbstractCegarLoop]: Abstraction has 11847 states and 16190 transitions. [2019-09-16 17:00:19,198 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:00:19,199 INFO L276 IsEmpty]: Start isEmpty. Operand 11847 states and 16190 transitions. [2019-09-16 17:00:19,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-09-16 17:00:19,207 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:19,207 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:19,208 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:19,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:19,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1077953163, now seen corresponding path program 1 times [2019-09-16 17:00:19,208 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:19,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:19,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:19,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:19,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:19,505 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-09-16 17:00:19,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:19,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:00:19,506 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:00:19,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:00:19,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:00:19,507 INFO L87 Difference]: Start difference. First operand 11847 states and 16190 transitions. Second operand 3 states. [2019-09-16 17:00:20,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:20,453 INFO L93 Difference]: Finished difference Result 31549 states and 43361 transitions. [2019-09-16 17:00:20,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:00:20,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2019-09-16 17:00:20,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:20,556 INFO L225 Difference]: With dead ends: 31549 [2019-09-16 17:00:20,556 INFO L226 Difference]: Without dead ends: 19729 [2019-09-16 17:00:20,603 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 17:00:20,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19729 states. [2019-09-16 17:00:21,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19729 to 19636. [2019-09-16 17:00:21,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19636 states. [2019-09-16 17:00:21,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19636 states to 19636 states and 27080 transitions. [2019-09-16 17:00:21,333 INFO L78 Accepts]: Start accepts. Automaton has 19636 states and 27080 transitions. Word has length 214 [2019-09-16 17:00:21,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:21,333 INFO L475 AbstractCegarLoop]: Abstraction has 19636 states and 27080 transitions. [2019-09-16 17:00:21,333 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:00:21,334 INFO L276 IsEmpty]: Start isEmpty. Operand 19636 states and 27080 transitions. [2019-09-16 17:00:21,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2019-09-16 17:00:21,344 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:21,345 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:21,345 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:21,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:21,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1079881175, now seen corresponding path program 1 times [2019-09-16 17:00:21,346 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:21,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:21,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:21,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:21,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:21,681 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-09-16 17:00:21,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:21,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:00:21,682 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:00:21,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:00:21,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:00:21,683 INFO L87 Difference]: Start difference. First operand 19636 states and 27080 transitions. Second operand 5 states. [2019-09-16 17:00:23,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:23,084 INFO L93 Difference]: Finished difference Result 39293 states and 54203 transitions. [2019-09-16 17:00:23,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:00:23,084 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 258 [2019-09-16 17:00:23,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:23,186 INFO L225 Difference]: With dead ends: 39293 [2019-09-16 17:00:23,186 INFO L226 Difference]: Without dead ends: 19696 [2019-09-16 17:00:23,243 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 17:00:23,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19696 states. [2019-09-16 17:00:23,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19696 to 19686. [2019-09-16 17:00:23,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19686 states. [2019-09-16 17:00:23,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19686 states to 19686 states and 27130 transitions. [2019-09-16 17:00:23,936 INFO L78 Accepts]: Start accepts. Automaton has 19686 states and 27130 transitions. Word has length 258 [2019-09-16 17:00:23,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:23,938 INFO L475 AbstractCegarLoop]: Abstraction has 19686 states and 27130 transitions. [2019-09-16 17:00:23,938 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:00:23,938 INFO L276 IsEmpty]: Start isEmpty. Operand 19686 states and 27130 transitions. [2019-09-16 17:00:23,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2019-09-16 17:00:23,949 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:23,950 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:23,950 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:23,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:23,950 INFO L82 PathProgramCache]: Analyzing trace with hash -314449380, now seen corresponding path program 1 times [2019-09-16 17:00:23,950 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:23,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:23,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:23,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:23,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2019-09-16 17:00:24,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:24,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:00:24,263 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:00:24,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:00:24,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:00:24,264 INFO L87 Difference]: Start difference. First operand 19686 states and 27130 transitions. Second operand 3 states. [2019-09-16 17:00:27,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:27,486 INFO L93 Difference]: Finished difference Result 47893 states and 66219 transitions. [2019-09-16 17:00:27,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:00:27,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2019-09-16 17:00:27,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:27,630 INFO L225 Difference]: With dead ends: 47893 [2019-09-16 17:00:27,630 INFO L226 Difference]: Without dead ends: 28246 [2019-09-16 17:00:27,688 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 17:00:27,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28246 states. [2019-09-16 17:00:28,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28246 to 28153. [2019-09-16 17:00:28,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28153 states. [2019-09-16 17:00:28,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28153 states to 28153 states and 38919 transitions. [2019-09-16 17:00:28,696 INFO L78 Accepts]: Start accepts. Automaton has 28153 states and 38919 transitions. Word has length 282 [2019-09-16 17:00:28,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:28,697 INFO L475 AbstractCegarLoop]: Abstraction has 28153 states and 38919 transitions. [2019-09-16 17:00:28,697 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:00:28,697 INFO L276 IsEmpty]: Start isEmpty. Operand 28153 states and 38919 transitions. [2019-09-16 17:00:28,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2019-09-16 17:00:28,710 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:28,710 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2019-09-16 17:00:28,710 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:28,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:28,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1943138756, now seen corresponding path program 1 times [2019-09-16 17:00:28,711 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:28,711 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:28,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:28,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:28,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:30,131 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-09-16 17:00:30,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:30,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:00:30,132 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:00:30,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:00:30,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:00:30,133 INFO L87 Difference]: Start difference. First operand 28153 states and 38919 transitions. Second operand 4 states. [2019-09-16 17:00:30,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:30,857 INFO L93 Difference]: Finished difference Result 56427 states and 78156 transitions. [2019-09-16 17:00:30,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:00:30,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 279 [2019-09-16 17:00:30,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:30,987 INFO L225 Difference]: With dead ends: 56427 [2019-09-16 17:00:30,988 INFO L226 Difference]: Without dead ends: 28313 [2019-09-16 17:00:31,081 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 17:00:31,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28313 states. [2019-09-16 17:00:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28313 to 28193. [2019-09-16 17:00:31,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28193 states. [2019-09-16 17:00:31,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28193 states to 28193 states and 38959 transitions. [2019-09-16 17:00:32,006 INFO L78 Accepts]: Start accepts. Automaton has 28193 states and 38959 transitions. Word has length 279 [2019-09-16 17:00:32,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:32,007 INFO L475 AbstractCegarLoop]: Abstraction has 28193 states and 38959 transitions. [2019-09-16 17:00:32,007 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:00:32,007 INFO L276 IsEmpty]: Start isEmpty. Operand 28193 states and 38959 transitions. [2019-09-16 17:00:32,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-09-16 17:00:32,020 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:32,020 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:32,021 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:32,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:32,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1838266968, now seen corresponding path program 1 times [2019-09-16 17:00:32,021 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:32,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:32,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:32,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:32,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:32,916 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-09-16 17:00:32,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:32,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-16 17:00:32,917 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-16 17:00:32,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-16 17:00:32,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:00:32,918 INFO L87 Difference]: Start difference. First operand 28193 states and 38959 transitions. Second operand 19 states. [2019-09-16 17:00:35,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:35,512 INFO L93 Difference]: Finished difference Result 56567 states and 78221 transitions. [2019-09-16 17:00:35,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:00:35,513 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 284 [2019-09-16 17:00:35,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:35,663 INFO L225 Difference]: With dead ends: 56567 [2019-09-16 17:00:35,663 INFO L226 Difference]: Without dead ends: 28413 [2019-09-16 17:00:35,763 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2019-09-16 17:00:35,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28413 states. [2019-09-16 17:00:36,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28413 to 28253. [2019-09-16 17:00:36,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28253 states. [2019-09-16 17:00:38,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28253 states to 28253 states and 39029 transitions. [2019-09-16 17:00:38,429 INFO L78 Accepts]: Start accepts. Automaton has 28253 states and 39029 transitions. Word has length 284 [2019-09-16 17:00:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:38,430 INFO L475 AbstractCegarLoop]: Abstraction has 28253 states and 39029 transitions. [2019-09-16 17:00:38,430 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-16 17:00:38,430 INFO L276 IsEmpty]: Start isEmpty. Operand 28253 states and 39029 transitions. [2019-09-16 17:00:38,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2019-09-16 17:00:38,443 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:38,444 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:38,444 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:38,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:38,445 INFO L82 PathProgramCache]: Analyzing trace with hash 2146948480, now seen corresponding path program 1 times [2019-09-16 17:00:38,445 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:38,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:38,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:38,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:38,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:38,744 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-09-16 17:00:38,744 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:00:38,744 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-16 17:00:39,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:40,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 4558 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-16 17:00:40,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-16 17:00:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-09-16 17:00:40,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:00:40,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2019-09-16 17:00:40,227 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:00:40,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:00:40,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:00:40,228 INFO L87 Difference]: Start difference. First operand 28253 states and 39029 transitions. Second operand 4 states. [2019-09-16 17:00:40,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:40,992 INFO L93 Difference]: Finished difference Result 56507 states and 78166 transitions. [2019-09-16 17:00:40,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:00:40,993 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 295 [2019-09-16 17:00:40,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:41,220 INFO L225 Difference]: With dead ends: 56507 [2019-09-16 17:00:41,220 INFO L226 Difference]: Without dead ends: 28293 [2019-09-16 17:00:41,357 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 296 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 17:00:41,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28293 states. [2019-09-16 17:00:42,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28293 to 28273. [2019-09-16 17:00:42,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28273 states. [2019-09-16 17:00:43,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28273 states to 28273 states and 39049 transitions. [2019-09-16 17:00:43,040 INFO L78 Accepts]: Start accepts. Automaton has 28273 states and 39049 transitions. Word has length 295 [2019-09-16 17:00:43,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:43,040 INFO L475 AbstractCegarLoop]: Abstraction has 28273 states and 39049 transitions. [2019-09-16 17:00:43,041 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:00:43,041 INFO L276 IsEmpty]: Start isEmpty. Operand 28273 states and 39049 transitions. [2019-09-16 17:00:43,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2019-09-16 17:00:43,055 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:43,056 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:43,056 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:43,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:43,057 INFO L82 PathProgramCache]: Analyzing trace with hash -328671576, now seen corresponding path program 1 times [2019-09-16 17:00:43,057 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:43,057 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:43,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:43,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:43,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:43,858 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-16 17:00:43,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:43,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-09-16 17:00:43,860 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-16 17:00:43,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-16 17:00:43,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2019-09-16 17:00:43,861 INFO L87 Difference]: Start difference. First operand 28273 states and 39049 transitions. Second operand 17 states. [2019-09-16 17:00:47,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:47,083 INFO L93 Difference]: Finished difference Result 56687 states and 78331 transitions. [2019-09-16 17:00:47,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-16 17:00:47,084 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 290 [2019-09-16 17:00:47,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:47,234 INFO L225 Difference]: With dead ends: 56687 [2019-09-16 17:00:47,235 INFO L226 Difference]: Without dead ends: 28453 [2019-09-16 17:00:47,319 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 17:00:47,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28453 states. [2019-09-16 17:00:48,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28453 to 28313. [2019-09-16 17:00:48,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28313 states. [2019-09-16 17:00:48,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28313 states to 28313 states and 39099 transitions. [2019-09-16 17:00:48,640 INFO L78 Accepts]: Start accepts. Automaton has 28313 states and 39099 transitions. Word has length 290 [2019-09-16 17:00:48,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:48,641 INFO L475 AbstractCegarLoop]: Abstraction has 28313 states and 39099 transitions. [2019-09-16 17:00:48,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-16 17:00:48,641 INFO L276 IsEmpty]: Start isEmpty. Operand 28313 states and 39099 transitions. [2019-09-16 17:00:48,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2019-09-16 17:00:48,654 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:48,655 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:48,655 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:48,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:48,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1548597319, now seen corresponding path program 1 times [2019-09-16 17:00:48,655 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:48,656 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:48,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:48,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:48,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-09-16 17:00:48,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:48,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:00:48,989 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:00:48,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:00:48,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:00:48,991 INFO L87 Difference]: Start difference. First operand 28313 states and 39099 transitions. Second operand 3 states. [2019-09-16 17:00:49,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:49,764 INFO L93 Difference]: Finished difference Result 56607 states and 78296 transitions. [2019-09-16 17:00:49,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:00:49,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 290 [2019-09-16 17:00:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:49,900 INFO L225 Difference]: With dead ends: 56607 [2019-09-16 17:00:49,900 INFO L226 Difference]: Without dead ends: 28333 [2019-09-16 17:00:49,987 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 17:00:50,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28333 states. [2019-09-16 17:00:50,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28333 to 28333. [2019-09-16 17:00:50,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28333 states. [2019-09-16 17:00:50,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28333 states to 28333 states and 39119 transitions. [2019-09-16 17:00:50,780 INFO L78 Accepts]: Start accepts. Automaton has 28333 states and 39119 transitions. Word has length 290 [2019-09-16 17:00:50,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:50,781 INFO L475 AbstractCegarLoop]: Abstraction has 28333 states and 39119 transitions. [2019-09-16 17:00:50,781 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:00:50,781 INFO L276 IsEmpty]: Start isEmpty. Operand 28333 states and 39119 transitions. [2019-09-16 17:00:50,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2019-09-16 17:00:50,793 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:50,794 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:50,794 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:50,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:50,794 INFO L82 PathProgramCache]: Analyzing trace with hash 924613377, now seen corresponding path program 1 times [2019-09-16 17:00:50,794 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:50,795 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:50,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:50,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:50,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:51,542 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-09-16 17:00:51,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:51,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:00:51,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:00:51,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:00:51,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:00:51,546 INFO L87 Difference]: Start difference. First operand 28333 states and 39119 transitions. Second operand 4 states. [2019-09-16 17:00:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:52,333 INFO L93 Difference]: Finished difference Result 56687 states and 78396 transitions. [2019-09-16 17:00:52,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:00:52,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 295 [2019-09-16 17:00:52,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:52,458 INFO L225 Difference]: With dead ends: 56687 [2019-09-16 17:00:52,458 INFO L226 Difference]: Without dead ends: 28393 [2019-09-16 17:00:52,535 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 17:00:52,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28393 states. [2019-09-16 17:00:53,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28393 to 28373. [2019-09-16 17:00:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28373 states. [2019-09-16 17:00:53,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28373 states to 28373 states and 39159 transitions. [2019-09-16 17:00:53,218 INFO L78 Accepts]: Start accepts. Automaton has 28373 states and 39159 transitions. Word has length 295 [2019-09-16 17:00:53,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:53,219 INFO L475 AbstractCegarLoop]: Abstraction has 28373 states and 39159 transitions. [2019-09-16 17:00:53,219 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:00:53,219 INFO L276 IsEmpty]: Start isEmpty. Operand 28373 states and 39159 transitions. [2019-09-16 17:00:53,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2019-09-16 17:00:53,235 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:53,236 INFO L407 BasicCegarLoop]: trace histogram [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 17:00:53,236 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:53,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:53,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1508289613, now seen corresponding path program 1 times [2019-09-16 17:00:53,237 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:53,237 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:53,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:53,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:53,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:53,731 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-16 17:00:53,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:53,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-16 17:00:53,732 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-16 17:00:53,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-16 17:00:53,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:00:53,733 INFO L87 Difference]: Start difference. First operand 28373 states and 39159 transitions. Second operand 13 states. [2019-09-16 17:00:57,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:00:57,793 INFO L93 Difference]: Finished difference Result 68607 states and 94457 transitions. [2019-09-16 17:00:57,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-09-16 17:00:57,794 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 290 [2019-09-16 17:00:57,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:00:57,917 INFO L225 Difference]: With dead ends: 68607 [2019-09-16 17:00:57,917 INFO L226 Difference]: Without dead ends: 40273 [2019-09-16 17:00:57,965 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 17:00:57,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40273 states. [2019-09-16 17:00:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40273 to 28543. [2019-09-16 17:00:58,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28543 states. [2019-09-16 17:00:58,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28543 states to 28543 states and 39399 transitions. [2019-09-16 17:00:58,742 INFO L78 Accepts]: Start accepts. Automaton has 28543 states and 39399 transitions. Word has length 290 [2019-09-16 17:00:58,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:00:58,742 INFO L475 AbstractCegarLoop]: Abstraction has 28543 states and 39399 transitions. [2019-09-16 17:00:58,743 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-16 17:00:58,743 INFO L276 IsEmpty]: Start isEmpty. Operand 28543 states and 39399 transitions. [2019-09-16 17:00:58,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2019-09-16 17:00:58,754 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:00:58,754 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 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] [2019-09-16 17:00:58,755 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:00:58,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:00:58,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1099450855, now seen corresponding path program 1 times [2019-09-16 17:00:58,755 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:00:58,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:00:58,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:58,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:00:58,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:00:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:00:59,197 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2019-09-16 17:00:59,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:00:59,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-16 17:00:59,199 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-16 17:00:59,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-16 17:00:59,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:00:59,199 INFO L87 Difference]: Start difference. First operand 28543 states and 39399 transitions. Second operand 13 states. [2019-09-16 17:01:01,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:01:01,843 INFO L93 Difference]: Finished difference Result 68547 states and 94337 transitions. [2019-09-16 17:01:01,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-16 17:01:01,844 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 301 [2019-09-16 17:01:01,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:01:01,933 INFO L225 Difference]: With dead ends: 68547 [2019-09-16 17:01:01,933 INFO L226 Difference]: Without dead ends: 40043 [2019-09-16 17:01:01,975 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 17:01:02,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40043 states. [2019-09-16 17:01:02,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40043 to 28543. [2019-09-16 17:01:02,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28543 states. [2019-09-16 17:01:02,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28543 states to 28543 states and 39389 transitions. [2019-09-16 17:01:02,697 INFO L78 Accepts]: Start accepts. Automaton has 28543 states and 39389 transitions. Word has length 301 [2019-09-16 17:01:02,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:01:02,698 INFO L475 AbstractCegarLoop]: Abstraction has 28543 states and 39389 transitions. [2019-09-16 17:01:02,698 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-16 17:01:02,698 INFO L276 IsEmpty]: Start isEmpty. Operand 28543 states and 39389 transitions. [2019-09-16 17:01:02,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2019-09-16 17:01:02,703 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:01:02,704 INFO L407 BasicCegarLoop]: trace histogram [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 17:01:02,704 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:01:02,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:01:02,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1494643045, now seen corresponding path program 1 times [2019-09-16 17:01:02,704 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:01:02,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:01:02,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:01:02,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:01:02,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:01:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:01:03,071 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2019-09-16 17:01:03,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:01:03,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:01:03,072 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:01:03,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:01:03,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:01:03,072 INFO L87 Difference]: Start difference. First operand 28543 states and 39389 transitions. Second operand 6 states. [2019-09-16 17:01:05,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:01:05,075 INFO L93 Difference]: Finished difference Result 68507 states and 94217 transitions. [2019-09-16 17:01:05,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-16 17:01:05,076 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 311 [2019-09-16 17:01:05,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:01:05,179 INFO L225 Difference]: With dead ends: 68507 [2019-09-16 17:01:05,179 INFO L226 Difference]: Without dead ends: 40003 [2019-09-16 17:01:05,232 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 17:01:05,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40003 states. [2019-09-16 17:01:06,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40003 to 28473. [2019-09-16 17:01:06,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28473 states. [2019-09-16 17:01:06,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28473 states to 28473 states and 39284 transitions. [2019-09-16 17:01:06,297 INFO L78 Accepts]: Start accepts. Automaton has 28473 states and 39284 transitions. Word has length 311 [2019-09-16 17:01:06,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:01:06,297 INFO L475 AbstractCegarLoop]: Abstraction has 28473 states and 39284 transitions. [2019-09-16 17:01:06,297 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:01:06,297 INFO L276 IsEmpty]: Start isEmpty. Operand 28473 states and 39284 transitions. [2019-09-16 17:01:06,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2019-09-16 17:01:06,300 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:01:06,301 INFO L407 BasicCegarLoop]: trace histogram [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 17:01:06,301 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:01:06,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:01:06,301 INFO L82 PathProgramCache]: Analyzing trace with hash -402752945, now seen corresponding path program 1 times [2019-09-16 17:01:06,301 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:01:06,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:01:06,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:01:06,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:01:06,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:01:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:01:06,628 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-16 17:01:06,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:01:06,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:01:06,629 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:01:06,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:01:06,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:01:06,630 INFO L87 Difference]: Start difference. First operand 28473 states and 39284 transitions. Second operand 8 states. [2019-09-16 17:01:07,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:01:07,218 INFO L93 Difference]: Finished difference Result 56967 states and 78626 transitions. [2019-09-16 17:01:07,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:01:07,219 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 290 [2019-09-16 17:01:07,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:01:07,288 INFO L225 Difference]: With dead ends: 56967 [2019-09-16 17:01:07,288 INFO L226 Difference]: Without dead ends: 28533 [2019-09-16 17:01:07,335 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 17:01:07,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28533 states. [2019-09-16 17:01:07,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28533 to 28513. [2019-09-16 17:01:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28513 states. [2019-09-16 17:01:07,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28513 states to 28513 states and 39324 transitions. [2019-09-16 17:01:07,954 INFO L78 Accepts]: Start accepts. Automaton has 28513 states and 39324 transitions. Word has length 290 [2019-09-16 17:01:07,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:01:07,955 INFO L475 AbstractCegarLoop]: Abstraction has 28513 states and 39324 transitions. [2019-09-16 17:01:07,955 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:01:07,955 INFO L276 IsEmpty]: Start isEmpty. Operand 28513 states and 39324 transitions. [2019-09-16 17:01:07,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2019-09-16 17:01:07,958 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:01:07,958 INFO L407 BasicCegarLoop]: trace histogram [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 17:01:07,958 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:01:07,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:01:07,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1961290589, now seen corresponding path program 1 times [2019-09-16 17:01:07,959 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:01:07,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:01:07,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:01:07,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:01:07,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:01:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:01:08,944 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2019-09-16 17:01:08,945 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:01:08,945 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-16 17:01:09,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:01:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:01:09,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 4630 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-16 17:01:09,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-16 17:01:10,116 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-09-16 17:01:10,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:01:10,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2019-09-16 17:01:10,131 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-16 17:01:10,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-16 17:01:10,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:01:10,131 INFO L87 Difference]: Start difference. First operand 28513 states and 39324 transitions. Second operand 13 states. [2019-09-16 17:02:03,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:02:03,817 INFO L93 Difference]: Finished difference Result 98165 states and 138550 transitions. [2019-09-16 17:02:03,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-09-16 17:02:03,818 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 311 [2019-09-16 17:02:03,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:02:04,111 INFO L225 Difference]: With dead ends: 98165 [2019-09-16 17:02:04,111 INFO L226 Difference]: Without dead ends: 69691 [2019-09-16 17:02:04,246 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 316 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=152, Invalid=840, Unknown=0, NotChecked=0, Total=992 [2019-09-16 17:02:04,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69691 states. [2019-09-16 17:02:06,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69691 to 62604. [2019-09-16 17:02:06,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62604 states. [2019-09-16 17:02:06,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62604 states to 62604 states and 87822 transitions. [2019-09-16 17:02:06,765 INFO L78 Accepts]: Start accepts. Automaton has 62604 states and 87822 transitions. Word has length 311 [2019-09-16 17:02:06,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:02:06,765 INFO L475 AbstractCegarLoop]: Abstraction has 62604 states and 87822 transitions. [2019-09-16 17:02:06,765 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-16 17:02:06,765 INFO L276 IsEmpty]: Start isEmpty. Operand 62604 states and 87822 transitions. [2019-09-16 17:02:06,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2019-09-16 17:02:06,771 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:02:06,772 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 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] [2019-09-16 17:02:06,772 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:02:06,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:02:06,772 INFO L82 PathProgramCache]: Analyzing trace with hash 2071763600, now seen corresponding path program 1 times [2019-09-16 17:02:06,773 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:02:06,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:02:06,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:02:06,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:02:06,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:02:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:02:07,225 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-09-16 17:02:07,225 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:02:07,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:02:07,226 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:02:07,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:02:07,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:02:07,227 INFO L87 Difference]: Start difference. First operand 62604 states and 87822 transitions. Second operand 4 states. [2019-09-16 17:02:09,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:02:09,018 INFO L93 Difference]: Finished difference Result 125342 states and 175944 transitions. [2019-09-16 17:02:09,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:02:09,019 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 313 [2019-09-16 17:02:09,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:02:09,226 INFO L225 Difference]: With dead ends: 125342 [2019-09-16 17:02:09,227 INFO L226 Difference]: Without dead ends: 62737 [2019-09-16 17:02:09,391 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 17:02:09,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62737 states. [2019-09-16 17:02:10,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62737 to 62674. [2019-09-16 17:02:10,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62674 states. [2019-09-16 17:02:14,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62674 states to 62674 states and 87902 transitions. [2019-09-16 17:02:14,794 INFO L78 Accepts]: Start accepts. Automaton has 62674 states and 87902 transitions. Word has length 313 [2019-09-16 17:02:14,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:02:14,794 INFO L475 AbstractCegarLoop]: Abstraction has 62674 states and 87902 transitions. [2019-09-16 17:02:14,794 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:02:14,794 INFO L276 IsEmpty]: Start isEmpty. Operand 62674 states and 87902 transitions. [2019-09-16 17:02:14,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2019-09-16 17:02:14,799 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:02:14,800 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 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] [2019-09-16 17:02:14,800 INFO L418 AbstractCegarLoop]: === Iteration 21 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:02:14,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:02:14,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1161745983, now seen corresponding path program 1 times [2019-09-16 17:02:14,800 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:02:14,800 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:02:14,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:02:14,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:02:14,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:02:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:02:15,314 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-09-16 17:02:15,315 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:02:15,315 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-16 17:02:15,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:02:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:02:16,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 4518 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-16 17:02:16,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-16 17:02:16,479 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-09-16 17:02:16,494 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-16 17:02:16,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-09-16 17:02:16,495 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:02:16,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:02:16,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:02:16,496 INFO L87 Difference]: Start difference. First operand 62674 states and 87902 transitions. Second operand 8 states. [2019-09-16 17:02:17,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:02:17,911 INFO L93 Difference]: Finished difference Result 125525 states and 176248 transitions. [2019-09-16 17:02:17,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-16 17:02:17,911 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 314 [2019-09-16 17:02:17,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:02:18,127 INFO L225 Difference]: With dead ends: 125525 [2019-09-16 17:02:18,127 INFO L226 Difference]: Without dead ends: 62750 [2019-09-16 17:02:18,286 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2019-09-16 17:02:18,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62750 states. [2019-09-16 17:02:20,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62750 to 62744. [2019-09-16 17:02:20,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62744 states. [2019-09-16 17:02:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62744 states to 62744 states and 87962 transitions. [2019-09-16 17:02:20,418 INFO L78 Accepts]: Start accepts. Automaton has 62744 states and 87962 transitions. Word has length 314 [2019-09-16 17:02:20,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:02:20,419 INFO L475 AbstractCegarLoop]: Abstraction has 62744 states and 87962 transitions. [2019-09-16 17:02:20,419 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:02:20,419 INFO L276 IsEmpty]: Start isEmpty. Operand 62744 states and 87962 transitions. [2019-09-16 17:02:20,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-09-16 17:02:20,424 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:02:20,424 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2019-09-16 17:02:20,425 INFO L418 AbstractCegarLoop]: === Iteration 22 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:02:20,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:02:20,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1278996368, now seen corresponding path program 2 times [2019-09-16 17:02:20,425 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:02:20,425 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:02:20,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:02:20,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:02:20,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:02:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:02:20,780 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-09-16 17:02:20,781 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:02:20,781 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-16 17:02:21,075 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-16 17:02:24,312 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-16 17:02:24,312 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-16 17:02:24,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 4524 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-16 17:02:24,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-16 17:02:24,472 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-09-16 17:02:24,494 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-16 17:02:24,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-09-16 17:02:24,497 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-16 17:02:24,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-16 17:02:24,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:02:24,498 INFO L87 Difference]: Start difference. First operand 62744 states and 87962 transitions. Second operand 10 states. [2019-09-16 17:02:25,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:02:25,856 INFO L93 Difference]: Finished difference Result 125608 states and 176292 transitions. [2019-09-16 17:02:25,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-16 17:02:25,858 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 315 [2019-09-16 17:02:25,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:02:26,035 INFO L225 Difference]: With dead ends: 125608 [2019-09-16 17:02:26,036 INFO L226 Difference]: Without dead ends: 62803 [2019-09-16 17:02:26,145 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2019-09-16 17:02:26,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62803 states. [2019-09-16 17:02:28,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62803 to 62794. [2019-09-16 17:02:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62794 states. [2019-09-16 17:02:28,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62794 states to 62794 states and 88012 transitions. [2019-09-16 17:02:28,275 INFO L78 Accepts]: Start accepts. Automaton has 62794 states and 88012 transitions. Word has length 315 [2019-09-16 17:02:28,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:02:28,276 INFO L475 AbstractCegarLoop]: Abstraction has 62794 states and 88012 transitions. [2019-09-16 17:02:28,276 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-16 17:02:28,276 INFO L276 IsEmpty]: Start isEmpty. Operand 62794 states and 88012 transitions. [2019-09-16 17:02:28,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2019-09-16 17:02:28,282 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:02:28,283 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:02:28,283 INFO L418 AbstractCegarLoop]: === Iteration 23 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:02:28,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:02:28,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1740451430, now seen corresponding path program 1 times [2019-09-16 17:02:28,284 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 17:02:28,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 17:02:28,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:02:28,289 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-16 17:02:28,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:02:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:02:29,101 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (const Int) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1305) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1186) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.TermTransferrer.convertApplicationTerm(TermTransferrer.java:182) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:339) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:574) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:461) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-09-16 17:02:29,107 INFO L168 Benchmark]: Toolchain (without parser) took 155865.61 ms. Allocated memory was 131.6 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 77.8 MB in the beginning and 402.9 MB in the end (delta: -325.1 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2019-09-16 17:02:29,108 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-16 17:02:29,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3000.77 ms. Allocated memory was 131.6 MB in the beginning and 269.0 MB in the end (delta: 137.4 MB). Free memory was 77.6 MB in the beginning and 161.1 MB in the end (delta: -83.5 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:02:29,109 INFO L168 Benchmark]: Boogie Preprocessor took 333.92 ms. Allocated memory is still 269.0 MB. Free memory was 161.1 MB in the beginning and 131.1 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:02:29,110 INFO L168 Benchmark]: RCFGBuilder took 8106.51 ms. Allocated memory was 269.0 MB in the beginning and 483.9 MB in the end (delta: 215.0 MB). Free memory was 131.1 MB in the beginning and 168.3 MB in the end (delta: -37.1 MB). Peak memory consumption was 216.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:02:29,110 INFO L168 Benchmark]: TraceAbstraction took 144419.68 ms. Allocated memory was 483.9 MB in the beginning and 2.8 GB in the end (delta: 2.3 GB). Free memory was 168.3 MB in the beginning and 402.9 MB in the end (delta: -234.7 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2019-09-16 17:02:29,114 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 131.6 MB. Free memory was 105.7 MB in the beginning and 105.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3000.77 ms. Allocated memory was 131.6 MB in the beginning and 269.0 MB in the end (delta: 137.4 MB). Free memory was 77.6 MB in the beginning and 161.1 MB in the end (delta: -83.5 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 333.92 ms. Allocated memory is still 269.0 MB. Free memory was 161.1 MB in the beginning and 131.1 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8106.51 ms. Allocated memory was 269.0 MB in the beginning and 483.9 MB in the end (delta: 215.0 MB). Free memory was 131.1 MB in the beginning and 168.3 MB in the end (delta: -37.1 MB). Peak memory consumption was 216.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 144419.68 ms. Allocated memory was 483.9 MB in the beginning and 2.8 GB in the end (delta: 2.3 GB). Free memory was 168.3 MB in the beginning and 402.9 MB in the end (delta: -234.7 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (const Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (const Int): de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...