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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:22:47,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:22:47,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:22:47,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:22:47,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:22:47,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:22:47,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:22:47,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:22:47,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:22:47,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:22:47,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:22:47,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:22:47,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:22:47,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:22:47,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:22:47,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:22:47,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:22:47,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:22:47,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:22:47,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:22:47,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:22:47,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:22:47,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:22:47,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:22:47,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:22:47,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:22:47,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:22:47,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:22:47,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:22:47,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:22:47,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:22:47,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:22:47,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:22:47,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:22:47,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:22:47,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:22:47,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:22:47,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:22:47,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:22:47,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:22:47,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:22:47,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 20:22:47,789 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:22:47,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:22:47,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:22:47,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:22:47,791 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:22:47,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:22:47,791 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:22:47,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:22:47,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:22:47,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:22:47,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:22:47,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:22:47,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:22:47,793 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:22:47,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:22:47,793 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:22:47,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:22:47,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:22:47,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:22:47,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:22:47,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:22:47,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:22:47,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:22:47,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:22:47,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:22:47,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:22:47,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:22:47,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:22:47,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 20:22:48,122 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:22:48,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:22:48,143 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:22:48,144 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:22:48,145 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:22:48,145 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2019-10-13 20:22:48,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d020c15a3/083d4a95baca404cb26a320d6bc0c1ed/FLAGe4eec6bb7 [2019-10-13 20:22:49,042 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:22:49,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2019-10-13 20:22:49,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d020c15a3/083d4a95baca404cb26a320d6bc0c1ed/FLAGe4eec6bb7 [2019-10-13 20:22:49,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d020c15a3/083d4a95baca404cb26a320d6bc0c1ed [2019-10-13 20:22:49,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:22:49,567 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:22:49,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:22:49,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:22:49,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:22:49,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:22:49" (1/1) ... [2019-10-13 20:22:49,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8938e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:49, skipping insertion in model container [2019-10-13 20:22:49,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:22:49" (1/1) ... [2019-10-13 20:22:49,580 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:22:49,704 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:22:51,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:22:51,486 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:22:51,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:22:52,187 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:22:52,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:52 WrapperNode [2019-10-13 20:22:52,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:22:52,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:22:52,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:22:52,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:22:52,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:52" (1/1) ... [2019-10-13 20:22:52,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:52" (1/1) ... [2019-10-13 20:22:52,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:52" (1/1) ... [2019-10-13 20:22:52,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:52" (1/1) ... [2019-10-13 20:22:52,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:52" (1/1) ... [2019-10-13 20:22:52,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:52" (1/1) ... [2019-10-13 20:22:52,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:52" (1/1) ... [2019-10-13 20:22:52,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:22:52,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:22:52,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:22:52,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:22:52,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:22:52,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:22:52,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:22:52,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:22:52,535 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-13 20:22:52,535 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 20:22:52,535 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 20:22:52,535 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2019-10-13 20:22:52,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-13 20:22:52,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:22:52,536 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:22:52,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 20:22:52,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 20:22:52,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 20:22:52,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 20:22:52,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 20:22:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 20:22:52,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 20:22:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 20:22:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 20:22:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2019-10-13 20:22:52,544 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2019-10-13 20:22:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2019-10-13 20:22:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_up [2019-10-13 20:22:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocm_to_gigaset [2019-10-13 20:22:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2019-10-13 20:22:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure set_value [2019-10-13 20:22:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2019-10-13 20:22:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2019-10-13 20:22:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2019-10-13 20:22:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2019-10-13 20:22:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_modem_fill [2019-10-13 20:22:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_read_int_callback [2019-10-13 20:22:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_bulk_callback [2019-10-13 20:22:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure send_cb [2019-10-13 20:22:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_cmd [2019-10-13 20:22:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2019-10-13 20:22:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2019-10-13 20:22:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2019-10-13 20:22:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2019-10-13 20:22:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2019-10-13 20:22:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2019-10-13 20:22:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2019-10-13 20:22:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2019-10-13 20:22:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure write_modem [2019-10-13 20:22:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_probe [2019-10-13 20:22:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2019-10-13 20:22:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2019-10-13 20:22:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2019-10-13 20:22:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_pre_reset [2019-10-13 20:22:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gigaset_init [2019-10-13 20:22:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gigaset_exit [2019-10-13 20:22:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-10-13 20:22:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gigaset_ops_1 [2019-10-13 20:22:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:22:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-13 20:22:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2019-10-13 20:22:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2019-10-13 20:22:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2019-10-13 20:22:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2019-10-13 20:22:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_7 [2019-10-13 20:22:52,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2019-10-13 20:22:52,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2019-10-13 20:22:52,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_10 [2019-10-13 20:22:52,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_11 [2019-10-13 20:22:52,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2019-10-13 20:22:52,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_13 [2019-10-13 20:22:52,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_14 [2019-10-13 20:22:52,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_16 [2019-10-13 20:22:52,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_17 [2019-10-13 20:22:52,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_19 [2019-10-13 20:22:52,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_20 [2019-10-13 20:22:52,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_21 [2019-10-13 20:22:52,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2019-10-13 20:22:52,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_25 [2019-10-13 20:22:52,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_26 [2019-10-13 20:22:52,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-13 20:22:52,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-13 20:22:52,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-13 20:22:52,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-13 20:22:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-13 20:22:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-13 20:22:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-13 20:22:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-13 20:22:52,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-13 20:22:52,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-13 20:22:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-13 20:22:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-13 20:22:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-13 20:22:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-13 20:22:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-13 20:22:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-13 20:22:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:22:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __tasklet_schedule [2019-10-13 20:22:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-13 20:22:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-13 20:22:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 20:22:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 20:22:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2019-10-13 20:22:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2019-10-13 20:22:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-13 20:22:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2019-10-13 20:22:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_blockdriver [2019-10-13 20:22:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2019-10-13 20:22:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_fill_inbuf [2019-10-13 20:22:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2019-10-13 20:22:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2019-10-13 20:22:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcs [2019-10-13 20:22:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initdriver [2019-10-13 20:22:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_input [2019-10-13 20:22:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_send_skb [2019-10-13 20:22:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_shutdown [2019-10-13 20:22:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_skb_sent [2019-10-13 20:22:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_start [2019-10-13 20:22:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_stop [2019-10-13 20:22:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:22:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-13 20:22:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2019-10-13 20:22:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 20:22:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2019-10-13 20:22:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-13 20:22:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2019-10-13 20:22:52,566 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2019-10-13 20:22:52,566 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-13 20:22:52,566 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-13 20:22:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-13 20:22:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-13 20:22:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:22:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:22:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 20:22:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 20:22:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 20:22:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:22:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 20:22:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 20:22:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 20:22:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-13 20:22:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 20:22:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-13 20:22:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 20:22:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 20:22:52,575 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 20:22:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure __tasklet_schedule [2019-10-13 20:22:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2019-10-13 20:22:52,576 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2019-10-13 20:22:52,584 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2019-10-13 20:22:52,584 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 20:22:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-13 20:22:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2019-10-13 20:22:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-13 20:22:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_17 [2019-10-13 20:22:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2019-10-13 20:22:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-13 20:22:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_7 [2019-10-13 20:22:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_16 [2019-10-13 20:22:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_21 [2019-10-13 20:22:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-13 20:22:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_25 [2019-10-13 20:22:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-13 20:22:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_26 [2019-10-13 20:22:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2019-10-13 20:22:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_11 [2019-10-13 20:22:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2019-10-13 20:22:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_10 [2019-10-13 20:22:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_13 [2019-10-13 20:22:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_14 [2019-10-13 20:22:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_19 [2019-10-13 20:22:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_20 [2019-10-13 20:22:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2019-10-13 20:22:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2019-10-13 20:22:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2019-10-13 20:22:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2019-10-13 20:22:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2019-10-13 20:22:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-13 20:22:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-13 20:22:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-13 20:22:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:22:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-13 20:22:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-13 20:22:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-13 20:22:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-13 20:22:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-13 20:22:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-13 20:22:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-13 20:22:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-13 20:22:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-13 20:22:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-13 20:22:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:22:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 20:22:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:22:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:22:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:22:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:22:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:22:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 20:22:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:22:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:22:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 20:22:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:22:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 20:22:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 20:22:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 20:22:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 20:22:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 20:22:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 20:22:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 20:22:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 20:22:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-10-13 20:22:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gigaset_ops_1 [2019-10-13 20:22:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2019-10-13 20:22:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-13 20:22:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2019-10-13 20:22:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 20:22:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:22:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2019-10-13 20:22:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2019-10-13 20:22:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_send_skb [2019-10-13 20:22:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_input [2019-10-13 20:22:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_skb_sent [2019-10-13 20:22:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initdriver [2019-10-13 20:22:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2019-10-13 20:22:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_blockdriver [2019-10-13 20:22:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcs [2019-10-13 20:22:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2019-10-13 20:22:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_start [2019-10-13 20:22:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_stop [2019-10-13 20:22:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_shutdown [2019-10-13 20:22:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2019-10-13 20:22:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2019-10-13 20:22:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2019-10-13 20:22:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_up [2019-10-13 20:22:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_fill_inbuf [2019-10-13 20:22:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_probe [2019-10-13 20:22:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2019-10-13 20:22:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2019-10-13 20:22:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2019-10-13 20:22:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_pre_reset [2019-10-13 20:22:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:22:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure tiocm_to_gigaset [2019-10-13 20:22:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2019-10-13 20:22:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:22:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure set_value [2019-10-13 20:22:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2019-10-13 20:22:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2019-10-13 20:22:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2019-10-13 20:22:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2019-10-13 20:22:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure write_modem [2019-10-13 20:22:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure send_cb [2019-10-13 20:22:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_modem_fill [2019-10-13 20:22:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_read_int_callback [2019-10-13 20:22:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_bulk_callback [2019-10-13 20:22:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:22:52,599 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_cmd [2019-10-13 20:22:52,600 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2019-10-13 20:22:52,600 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2019-10-13 20:22:52,600 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2019-10-13 20:22:52,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:22:52,600 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2019-10-13 20:22:52,600 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2019-10-13 20:22:52,600 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2019-10-13 20:22:52,601 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2019-10-13 20:22:52,601 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2019-10-13 20:22:52,601 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gigaset_init [2019-10-13 20:22:52,601 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gigaset_exit [2019-10-13 20:22:52,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-13 20:22:52,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2019-10-13 20:22:52,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:22:52,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:22:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:22:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 20:22:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-13 20:22:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-13 20:22:52,608 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 20:22:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-13 20:22:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-13 20:22:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-13 20:22:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-13 20:22:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:22:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:22:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:22:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 20:22:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:22:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:22:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:22:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 20:22:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 20:22:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 20:22:53,789 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 20:22:56,552 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-13 20:22:57,678 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:22:57,679 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 20:22:57,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:22:57 BoogieIcfgContainer [2019-10-13 20:22:57,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:22:57,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:22:57,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:22:57,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:22:57,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:22:49" (1/3) ... [2019-10-13 20:22:57,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293e280f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:22:57, skipping insertion in model container [2019-10-13 20:22:57,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:22:52" (2/3) ... [2019-10-13 20:22:57,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293e280f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:22:57, skipping insertion in model container [2019-10-13 20:22:57,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:22:57" (3/3) ... [2019-10-13 20:22:57,690 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2019-10-13 20:22:57,701 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:22:57,712 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:22:57,723 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:22:57,757 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:22:57,758 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:22:57,758 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:22:57,758 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:22:57,758 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:22:57,758 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:22:57,759 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:22:57,759 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:22:57,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states. [2019-10-13 20:22:57,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-13 20:22:57,824 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:57,825 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:22:57,827 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:57,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:57,836 INFO L82 PathProgramCache]: Analyzing trace with hash 943132148, now seen corresponding path program 1 times [2019-10-13 20:22:57,846 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:57,847 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958539329] [2019-10-13 20:22:57,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:57,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:57,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:58,809 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:22:58,810 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958539329] [2019-10-13 20:22:58,811 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:58,811 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:58,812 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745068769] [2019-10-13 20:22:58,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:58,819 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:58,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:58,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:58,838 INFO L87 Difference]: Start difference. First operand 1109 states. Second operand 3 states. [2019-10-13 20:22:59,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:59,140 INFO L93 Difference]: Finished difference Result 2705 states and 3644 transitions. [2019-10-13 20:22:59,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:59,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2019-10-13 20:22:59,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:59,193 INFO L225 Difference]: With dead ends: 2705 [2019-10-13 20:22:59,193 INFO L226 Difference]: Without dead ends: 1780 [2019-10-13 20:22:59,206 INFO L600 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 [2019-10-13 20:22:59,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2019-10-13 20:22:59,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1770. [2019-10-13 20:22:59,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1770 states. [2019-10-13 20:22:59,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2354 transitions. [2019-10-13 20:22:59,473 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2354 transitions. Word has length 76 [2019-10-13 20:22:59,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:59,474 INFO L462 AbstractCegarLoop]: Abstraction has 1770 states and 2354 transitions. [2019-10-13 20:22:59,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:59,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2354 transitions. [2019-10-13 20:22:59,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-13 20:22:59,481 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:59,481 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:22:59,482 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:59,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:59,482 INFO L82 PathProgramCache]: Analyzing trace with hash -828302111, now seen corresponding path program 1 times [2019-10-13 20:22:59,482 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:59,482 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758874754] [2019-10-13 20:22:59,483 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:59,483 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:59,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:22:59,766 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758874754] [2019-10-13 20:22:59,766 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:59,766 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:59,766 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107725415] [2019-10-13 20:22:59,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:59,769 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:59,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:59,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:59,770 INFO L87 Difference]: Start difference. First operand 1770 states and 2354 transitions. Second operand 3 states. [2019-10-13 20:23:00,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:00,000 INFO L93 Difference]: Finished difference Result 5255 states and 7148 transitions. [2019-10-13 20:23:00,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:00,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-10-13 20:23:00,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:00,029 INFO L225 Difference]: With dead ends: 5255 [2019-10-13 20:23:00,029 INFO L226 Difference]: Without dead ends: 3510 [2019-10-13 20:23:00,038 INFO L600 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 [2019-10-13 20:23:00,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3510 states. [2019-10-13 20:23:00,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3510 to 3501. [2019-10-13 20:23:00,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3501 states. [2019-10-13 20:23:00,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 4715 transitions. [2019-10-13 20:23:00,196 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 4715 transitions. Word has length 77 [2019-10-13 20:23:00,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:00,197 INFO L462 AbstractCegarLoop]: Abstraction has 3501 states and 4715 transitions. [2019-10-13 20:23:00,197 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:00,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 4715 transitions. [2019-10-13 20:23:00,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-13 20:23:00,201 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:00,201 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:23:00,201 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:00,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:00,202 INFO L82 PathProgramCache]: Analyzing trace with hash 91815575, now seen corresponding path program 1 times [2019-10-13 20:23:00,202 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:00,202 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609043022] [2019-10-13 20:23:00,202 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:00,202 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:00,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:00,487 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:23:00,488 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609043022] [2019-10-13 20:23:00,488 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:00,488 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:23:00,488 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972299291] [2019-10-13 20:23:00,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:00,489 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:00,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:00,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:00,490 INFO L87 Difference]: Start difference. First operand 3501 states and 4715 transitions. Second operand 3 states. [2019-10-13 20:23:00,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:00,615 INFO L93 Difference]: Finished difference Result 3508 states and 4721 transitions. [2019-10-13 20:23:00,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:00,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2019-10-13 20:23:00,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:00,638 INFO L225 Difference]: With dead ends: 3508 [2019-10-13 20:23:00,638 INFO L226 Difference]: Without dead ends: 3505 [2019-10-13 20:23:00,641 INFO L600 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 [2019-10-13 20:23:00,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3505 states. [2019-10-13 20:23:00,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3505 to 3502. [2019-10-13 20:23:00,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3502 states. [2019-10-13 20:23:00,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3502 states to 3502 states and 4716 transitions. [2019-10-13 20:23:00,854 INFO L78 Accepts]: Start accepts. Automaton has 3502 states and 4716 transitions. Word has length 78 [2019-10-13 20:23:00,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:00,855 INFO L462 AbstractCegarLoop]: Abstraction has 3502 states and 4716 transitions. [2019-10-13 20:23:00,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:00,855 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states and 4716 transitions. [2019-10-13 20:23:00,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-13 20:23:00,860 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:00,860 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:23:00,860 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:00,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:00,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1449302364, now seen corresponding path program 1 times [2019-10-13 20:23:00,861 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:00,862 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488954667] [2019-10-13 20:23:00,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:00,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:00,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:01,099 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:23:01,099 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488954667] [2019-10-13 20:23:01,099 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:01,100 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:23:01,100 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237077729] [2019-10-13 20:23:01,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:01,102 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:01,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:01,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:01,104 INFO L87 Difference]: Start difference. First operand 3502 states and 4716 transitions. Second operand 3 states. [2019-10-13 20:23:01,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:01,208 INFO L93 Difference]: Finished difference Result 3504 states and 4717 transitions. [2019-10-13 20:23:01,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:01,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2019-10-13 20:23:01,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:01,236 INFO L225 Difference]: With dead ends: 3504 [2019-10-13 20:23:01,236 INFO L226 Difference]: Without dead ends: 3501 [2019-10-13 20:23:01,241 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:01,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2019-10-13 20:23:01,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 3501. [2019-10-13 20:23:01,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3501 states. [2019-10-13 20:23:01,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 4714 transitions. [2019-10-13 20:23:01,413 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 4714 transitions. Word has length 79 [2019-10-13 20:23:01,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:01,413 INFO L462 AbstractCegarLoop]: Abstraction has 3501 states and 4714 transitions. [2019-10-13 20:23:01,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:01,414 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 4714 transitions. [2019-10-13 20:23:01,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-13 20:23:01,416 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:01,417 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:23:01,417 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:01,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:01,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1979313350, now seen corresponding path program 1 times [2019-10-13 20:23:01,417 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:01,418 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984173588] [2019-10-13 20:23:01,418 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:01,418 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:01,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:01,625 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:23:01,626 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984173588] [2019-10-13 20:23:01,626 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:01,626 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:23:01,627 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358009394] [2019-10-13 20:23:01,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:01,628 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:01,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:01,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:01,629 INFO L87 Difference]: Start difference. First operand 3501 states and 4714 transitions. Second operand 3 states. [2019-10-13 20:23:01,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:01,765 INFO L93 Difference]: Finished difference Result 3503 states and 4715 transitions. [2019-10-13 20:23:01,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:01,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-10-13 20:23:01,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:01,794 INFO L225 Difference]: With dead ends: 3503 [2019-10-13 20:23:01,794 INFO L226 Difference]: Without dead ends: 3465 [2019-10-13 20:23:01,798 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:01,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2019-10-13 20:23:02,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3465. [2019-10-13 20:23:02,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3465 states. [2019-10-13 20:23:02,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 4672 transitions. [2019-10-13 20:23:02,022 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 4672 transitions. Word has length 80 [2019-10-13 20:23:02,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:02,023 INFO L462 AbstractCegarLoop]: Abstraction has 3465 states and 4672 transitions. [2019-10-13 20:23:02,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 4672 transitions. [2019-10-13 20:23:02,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-13 20:23:02,033 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:02,033 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2019-10-13 20:23:02,033 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:02,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:02,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1822522790, now seen corresponding path program 1 times [2019-10-13 20:23:02,034 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:02,034 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229628207] [2019-10-13 20:23:02,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:02,035 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:02,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:02,260 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-13 20:23:02,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229628207] [2019-10-13 20:23:02,261 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:02,261 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:23:02,261 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969077670] [2019-10-13 20:23:02,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:02,262 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:02,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:02,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:02,263 INFO L87 Difference]: Start difference. First operand 3465 states and 4672 transitions. Second operand 3 states. [2019-10-13 20:23:02,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:02,592 INFO L93 Difference]: Finished difference Result 8772 states and 11776 transitions. [2019-10-13 20:23:02,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:02,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2019-10-13 20:23:02,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:02,625 INFO L225 Difference]: With dead ends: 8772 [2019-10-13 20:23:02,625 INFO L226 Difference]: Without dead ends: 5332 [2019-10-13 20:23:02,641 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:02,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5332 states. [2019-10-13 20:23:02,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5332 to 5225. [2019-10-13 20:23:02,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5225 states. [2019-10-13 20:23:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 7010 transitions. [2019-10-13 20:23:02,890 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 7010 transitions. Word has length 234 [2019-10-13 20:23:02,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:02,891 INFO L462 AbstractCegarLoop]: Abstraction has 5225 states and 7010 transitions. [2019-10-13 20:23:02,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:02,892 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 7010 transitions. [2019-10-13 20:23:02,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-13 20:23:02,963 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:02,964 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 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, 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] [2019-10-13 20:23:02,964 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:02,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:02,965 INFO L82 PathProgramCache]: Analyzing trace with hash -2116558061, now seen corresponding path program 1 times [2019-10-13 20:23:02,965 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:02,965 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780070486] [2019-10-13 20:23:02,966 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:02,966 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:02,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:03,239 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-10-13 20:23:03,239 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780070486] [2019-10-13 20:23:03,239 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864003244] [2019-10-13 20:23:03,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:23:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:04,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 3060 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-13 20:23:04,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:23:04,276 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-13 20:23:04,277 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:23:04,961 WARN L191 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-13 20:23:05,287 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-13 20:23:05,288 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 20:23:05,288 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 6 [2019-10-13 20:23:05,288 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491786471] [2019-10-13 20:23:05,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:05,290 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:05,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:05,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:23:05,290 INFO L87 Difference]: Start difference. First operand 5225 states and 7010 transitions. Second operand 3 states. [2019-10-13 20:23:05,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:05,513 INFO L93 Difference]: Finished difference Result 10429 states and 14013 transitions. [2019-10-13 20:23:05,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:05,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2019-10-13 20:23:05,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:05,557 INFO L225 Difference]: With dead ends: 10429 [2019-10-13 20:23:05,557 INFO L226 Difference]: Without dead ends: 5229 [2019-10-13 20:23:05,577 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:23:05,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5229 states. [2019-10-13 20:23:05,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5229 to 5229. [2019-10-13 20:23:05,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5229 states. [2019-10-13 20:23:05,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 7014 transitions. [2019-10-13 20:23:05,827 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 7014 transitions. Word has length 281 [2019-10-13 20:23:05,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:05,828 INFO L462 AbstractCegarLoop]: Abstraction has 5229 states and 7014 transitions. [2019-10-13 20:23:05,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:05,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 7014 transitions. [2019-10-13 20:23:05,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-13 20:23:05,855 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:05,855 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 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, 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] [2019-10-13 20:23:06,056 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:23:06,057 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:06,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:06,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1135603247, now seen corresponding path program 1 times [2019-10-13 20:23:06,058 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:06,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476632676] [2019-10-13 20:23:06,058 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:06,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:06,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:06,338 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-10-13 20:23:06,338 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476632676] [2019-10-13 20:23:06,339 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880276883] [2019-10-13 20:23:06,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:23:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:07,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 3063 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 20:23:07,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:23:07,410 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-13 20:23:07,410 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:23:07,697 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-13 20:23:07,697 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 20:23:07,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 6 [2019-10-13 20:23:07,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905257631] [2019-10-13 20:23:07,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:07,700 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:07,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:07,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:23:07,701 INFO L87 Difference]: Start difference. First operand 5229 states and 7014 transitions. Second operand 3 states. [2019-10-13 20:23:09,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:09,606 INFO L93 Difference]: Finished difference Result 10454 states and 14025 transitions. [2019-10-13 20:23:09,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:09,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2019-10-13 20:23:09,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:09,638 INFO L225 Difference]: With dead ends: 10454 [2019-10-13 20:23:09,638 INFO L226 Difference]: Without dead ends: 5248 [2019-10-13 20:23:09,660 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:23:09,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5248 states. [2019-10-13 20:23:09,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5248 to 5232. [2019-10-13 20:23:09,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5232 states. [2019-10-13 20:23:10,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5232 states to 5232 states and 7015 transitions. [2019-10-13 20:23:10,017 INFO L78 Accepts]: Start accepts. Automaton has 5232 states and 7015 transitions. Word has length 281 [2019-10-13 20:23:10,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:10,017 INFO L462 AbstractCegarLoop]: Abstraction has 5232 states and 7015 transitions. [2019-10-13 20:23:10,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:10,018 INFO L276 IsEmpty]: Start isEmpty. Operand 5232 states and 7015 transitions. [2019-10-13 20:23:10,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-10-13 20:23:10,033 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:10,034 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 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, 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] [2019-10-13 20:23:10,244 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:23:10,244 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:10,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:10,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1116298282, now seen corresponding path program 1 times [2019-10-13 20:23:10,245 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:10,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998437882] [2019-10-13 20:23:10,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:10,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:10,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:10,545 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-10-13 20:23:10,545 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998437882] [2019-10-13 20:23:10,545 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:10,546 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:23:10,546 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998694933] [2019-10-13 20:23:10,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:23:10,548 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:10,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:23:10,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:10,548 INFO L87 Difference]: Start difference. First operand 5232 states and 7015 transitions. Second operand 3 states. [2019-10-13 20:23:12,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:12,877 INFO L93 Difference]: Finished difference Result 10573 states and 14212 transitions. [2019-10-13 20:23:12,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:23:12,878 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 297 [2019-10-13 20:23:12,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:12,917 INFO L225 Difference]: With dead ends: 10573 [2019-10-13 20:23:12,917 INFO L226 Difference]: Without dead ends: 4936 [2019-10-13 20:23:12,938 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:23:12,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4936 states. [2019-10-13 20:23:13,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4936 to 4936. [2019-10-13 20:23:13,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4936 states. [2019-10-13 20:23:13,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4936 states to 4936 states and 6643 transitions. [2019-10-13 20:23:13,186 INFO L78 Accepts]: Start accepts. Automaton has 4936 states and 6643 transitions. Word has length 297 [2019-10-13 20:23:13,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:13,189 INFO L462 AbstractCegarLoop]: Abstraction has 4936 states and 6643 transitions. [2019-10-13 20:23:13,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:23:13,190 INFO L276 IsEmpty]: Start isEmpty. Operand 4936 states and 6643 transitions. [2019-10-13 20:23:13,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2019-10-13 20:23:13,206 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:13,207 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:23:13,207 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:13,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:13,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1152865943, now seen corresponding path program 1 times [2019-10-13 20:23:13,208 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:13,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545987181] [2019-10-13 20:23:13,208 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:13,208 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:13,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:13,576 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-10-13 20:23:13,577 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545987181] [2019-10-13 20:23:13,577 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:13,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 20:23:13,578 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753756214] [2019-10-13 20:23:13,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 20:23:13,579 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:13,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 20:23:13,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 20:23:13,579 INFO L87 Difference]: Start difference. First operand 4936 states and 6643 transitions. Second operand 6 states. [2019-10-13 20:23:15,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:15,839 INFO L93 Difference]: Finished difference Result 13982 states and 18907 transitions. [2019-10-13 20:23:15,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 20:23:15,840 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 302 [2019-10-13 20:23:15,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:15,877 INFO L225 Difference]: With dead ends: 13982 [2019-10-13 20:23:15,877 INFO L226 Difference]: Without dead ends: 9547 [2019-10-13 20:23:15,894 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-13 20:23:15,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9547 states. [2019-10-13 20:23:16,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9547 to 5028. [2019-10-13 20:23:16,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5028 states. [2019-10-13 20:23:16,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 6785 transitions. [2019-10-13 20:23:16,169 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 6785 transitions. Word has length 302 [2019-10-13 20:23:16,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:16,170 INFO L462 AbstractCegarLoop]: Abstraction has 5028 states and 6785 transitions. [2019-10-13 20:23:16,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 20:23:16,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 6785 transitions. [2019-10-13 20:23:16,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2019-10-13 20:23:16,186 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:16,186 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:23:16,187 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:16,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:16,187 INFO L82 PathProgramCache]: Analyzing trace with hash 2112742055, now seen corresponding path program 1 times [2019-10-13 20:23:16,187 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:16,187 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923007730] [2019-10-13 20:23:16,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:16,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:16,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2019-10-13 20:23:16,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923007730] [2019-10-13 20:23:16,527 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:23:16,527 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 20:23:16,527 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353784688] [2019-10-13 20:23:16,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 20:23:16,528 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:23:16,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 20:23:16,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 20:23:16,529 INFO L87 Difference]: Start difference. First operand 5028 states and 6785 transitions. Second operand 4 states. [2019-10-13 20:23:16,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:23:16,716 INFO L93 Difference]: Finished difference Result 10026 states and 13535 transitions. [2019-10-13 20:23:16,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 20:23:16,716 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 302 [2019-10-13 20:23:16,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:23:16,736 INFO L225 Difference]: With dead ends: 10026 [2019-10-13 20:23:16,737 INFO L226 Difference]: Without dead ends: 5029 [2019-10-13 20:23:16,753 INFO L600 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 [2019-10-13 20:23:16,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5029 states. [2019-10-13 20:23:16,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5029 to 5029. [2019-10-13 20:23:16,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5029 states. [2019-10-13 20:23:16,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5029 states to 5029 states and 6786 transitions. [2019-10-13 20:23:16,979 INFO L78 Accepts]: Start accepts. Automaton has 5029 states and 6786 transitions. Word has length 302 [2019-10-13 20:23:16,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:23:16,980 INFO L462 AbstractCegarLoop]: Abstraction has 5029 states and 6786 transitions. [2019-10-13 20:23:16,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 20:23:16,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5029 states and 6786 transitions. [2019-10-13 20:23:16,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2019-10-13 20:23:16,995 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:23:16,995 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:23:16,996 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:23:16,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:23:16,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1398355353, now seen corresponding path program 1 times [2019-10-13 20:23:16,996 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:23:16,997 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380239820] [2019-10-13 20:23:16,997 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:16,997 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:23:16,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:23:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:17,551 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2019-10-13 20:23:17,551 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380239820] [2019-10-13 20:23:17,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000122102] [2019-10-13 20:23:17,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:23:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:23:18,342 INFO L256 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 20:23:18,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:23:18,496 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 60 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-13 20:23:18,496 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:23:18,843 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2019-10-13 20:23:18,844 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [89168720] [2019-10-13 20:23:18,850 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 304 [2019-10-13 20:23:18,911 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 20:23:18,912 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)