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 0.1.24-13a467a-m [2019-10-15 00:21:46,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 00:21:46,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 00:21:46,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 00:21:46,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 00:21:46,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 00:21:46,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 00:21:46,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 00:21:46,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 00:21:46,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 00:21:46,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 00:21:46,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 00:21:46,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 00:21:46,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 00:21:46,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 00:21:46,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 00:21:46,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 00:21:46,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 00:21:46,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 00:21:46,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 00:21:46,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 00:21:46,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 00:21:46,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 00:21:46,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 00:21:46,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 00:21:46,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 00:21:46,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 00:21:46,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 00:21:46,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 00:21:46,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 00:21:46,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 00:21:46,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 00:21:46,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 00:21:46,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 00:21:46,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 00:21:46,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 00:21:46,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 00:21:46,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 00:21:46,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 00:21:46,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 00:21:46,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 00:21:46,273 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 [2019-10-15 00:21:46,309 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 00:21:46,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 00:21:46,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 00:21:46,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 00:21:46,311 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 00:21:46,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 00:21:46,314 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 00:21:46,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 00:21:46,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 00:21:46,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 00:21:46,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 00:21:46,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 00:21:46,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 00:21:46,316 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 00:21:46,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 00:21:46,316 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 00:21:46,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 00:21:46,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 00:21:46,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 00:21:46,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 00:21:46,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 00:21:46,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 00:21:46,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 00:21:46,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 00:21:46,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 00:21:46,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 00:21:46,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 00:21:46,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 00:21:46,319 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 [2019-10-15 00:21:46,593 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 00:21:46,607 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 00:21:46,610 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 00:21:46,612 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 00:21:46,612 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 00:21:46,613 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2019-10-15 00:21:46,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34001a11b/ed4ac4cd66df4b4d9d13e7815097a6d5/FLAGd1bfdaf16 [2019-10-15 00:21:47,503 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 00:21:47,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2019-10-15 00:21:47,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34001a11b/ed4ac4cd66df4b4d9d13e7815097a6d5/FLAGd1bfdaf16 [2019-10-15 00:21:47,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34001a11b/ed4ac4cd66df4b4d9d13e7815097a6d5 [2019-10-15 00:21:48,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 00:21:48,005 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 00:21:48,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 00:21:48,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 00:21:48,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 00:21:48,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:21:47" (1/1) ... [2019-10-15 00:21:48,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167c183f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:48, skipping insertion in model container [2019-10-15 00:21:48,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:21:47" (1/1) ... [2019-10-15 00:21:48,021 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 00:21:48,151 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 00:21:50,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:21:50,052 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 00:21:50,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 00:21:50,517 INFO L192 MainTranslator]: Completed translation [2019-10-15 00:21:50,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:50 WrapperNode [2019-10-15 00:21:50,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 00:21:50,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 00:21:50,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 00:21:50,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 00:21:50,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:50" (1/1) ... [2019-10-15 00:21:50,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:50" (1/1) ... [2019-10-15 00:21:50,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:50" (1/1) ... [2019-10-15 00:21:50,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:50" (1/1) ... [2019-10-15 00:21:50,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:50" (1/1) ... [2019-10-15 00:21:50,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:50" (1/1) ... [2019-10-15 00:21:50,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:50" (1/1) ... [2019-10-15 00:21:50,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 00:21:50,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 00:21:50,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 00:21:50,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 00:21:50,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:50" (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 [2019-10-15 00:21:50,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 00:21:50,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 00:21:50,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 00:21:50,850 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-15 00:21:50,850 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 00:21:50,851 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-15 00:21:50,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2019-10-15 00:21:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-15 00:21:50,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 00:21:50,854 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 00:21:50,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 00:21:50,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-15 00:21:50,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-15 00:21:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-15 00:21:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-15 00:21:50,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 00:21:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-15 00:21:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 00:21:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-15 00:21:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2019-10-15 00:21:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2019-10-15 00:21:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2019-10-15 00:21:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_up [2019-10-15 00:21:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocm_to_gigaset [2019-10-15 00:21:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2019-10-15 00:21:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure set_value [2019-10-15 00:21:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2019-10-15 00:21:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2019-10-15 00:21:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2019-10-15 00:21:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2019-10-15 00:21:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_modem_fill [2019-10-15 00:21:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_read_int_callback [2019-10-15 00:21:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_bulk_callback [2019-10-15 00:21:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure send_cb [2019-10-15 00:21:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_cmd [2019-10-15 00:21:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2019-10-15 00:21:50,863 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2019-10-15 00:21:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2019-10-15 00:21:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2019-10-15 00:21:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2019-10-15 00:21:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2019-10-15 00:21:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2019-10-15 00:21:50,864 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2019-10-15 00:21:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure write_modem [2019-10-15 00:21:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_probe [2019-10-15 00:21:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2019-10-15 00:21:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2019-10-15 00:21:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2019-10-15 00:21:50,865 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_pre_reset [2019-10-15 00:21:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gigaset_init [2019-10-15 00:21:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gigaset_exit [2019-10-15 00:21:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2019-10-15 00:21:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gigaset_ops_1 [2019-10-15 00:21:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 00:21:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-15 00:21:50,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2019-10-15 00:21:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2019-10-15 00:21:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2019-10-15 00:21:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2019-10-15 00:21:50,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_7 [2019-10-15 00:21:50,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2019-10-15 00:21:50,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_9 [2019-10-15 00:21:50,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_10 [2019-10-15 00:21:50,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_11 [2019-10-15 00:21:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2019-10-15 00:21:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_13 [2019-10-15 00:21:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_14 [2019-10-15 00:21:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_16 [2019-10-15 00:21:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_17 [2019-10-15 00:21:50,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_19 [2019-10-15 00:21:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_20 [2019-10-15 00:21:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_21 [2019-10-15 00:21:50,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2019-10-15 00:21:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_25 [2019-10-15 00:21:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_26 [2019-10-15 00:21:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2019-10-15 00:21:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2019-10-15 00:21:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2019-10-15 00:21:50,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2019-10-15 00:21:50,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2019-10-15 00:21:50,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2019-10-15 00:21:50,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2019-10-15 00:21:50,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2019-10-15 00:21:50,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-10-15 00:21:50,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2019-10-15 00:21:50,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2019-10-15 00:21:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2019-10-15 00:21:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2019-10-15 00:21:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2019-10-15 00:21:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2019-10-15 00:21:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2019-10-15 00:21:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 00:21:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __tasklet_schedule [2019-10-15 00:21:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-15 00:21:50,875 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-15 00:21:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:21:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-15 00:21:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2019-10-15 00:21:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2019-10-15 00:21:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-15 00:21:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2019-10-15 00:21:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_blockdriver [2019-10-15 00:21:50,876 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2019-10-15 00:21:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_fill_inbuf [2019-10-15 00:21:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2019-10-15 00:21:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2019-10-15 00:21:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcs [2019-10-15 00:21:50,877 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initdriver [2019-10-15 00:21:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_input [2019-10-15 00:21:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_send_skb [2019-10-15 00:21:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_shutdown [2019-10-15 00:21:50,878 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_skb_sent [2019-10-15 00:21:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_start [2019-10-15 00:21:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_stop [2019-10-15 00:21:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 00:21:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-15 00:21:50,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2019-10-15 00:21:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 00:21:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2019-10-15 00:21:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-15 00:21:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2019-10-15 00:21:50,881 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2019-10-15 00:21:50,881 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-15 00:21:50,881 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-15 00:21:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-15 00:21:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-15 00:21:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 00:21:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 00:21:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-15 00:21:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-15 00:21:50,883 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 00:21:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 00:21:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 00:21:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 00:21:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-15 00:21:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-15 00:21:50,887 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 00:21:50,890 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-15 00:21:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-15 00:21:50,891 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 00:21:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-15 00:21:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure __tasklet_schedule [2019-10-15 00:21:50,892 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2019-10-15 00:21:50,893 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2019-10-15 00:21:50,898 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2019-10-15 00:21:50,898 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-15 00:21:50,898 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-15 00:21:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2019-10-15 00:21:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-15 00:21:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_17 [2019-10-15 00:21:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2019-10-15 00:21:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-15 00:21:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_7 [2019-10-15 00:21:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_16 [2019-10-15 00:21:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_21 [2019-10-15 00:21:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-15 00:21:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_25 [2019-10-15 00:21:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-15 00:21:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_26 [2019-10-15 00:21:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2019-10-15 00:21:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_11 [2019-10-15 00:21:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_9 [2019-10-15 00:21:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_10 [2019-10-15 00:21:50,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_13 [2019-10-15 00:21:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_14 [2019-10-15 00:21:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_19 [2019-10-15 00:21:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_20 [2019-10-15 00:21:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2019-10-15 00:21:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2019-10-15 00:21:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2019-10-15 00:21:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2019-10-15 00:21:50,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2019-10-15 00:21:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-15 00:21:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-15 00:21:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-15 00:21:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 00:21:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2019-10-15 00:21:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2019-10-15 00:21:50,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2019-10-15 00:21:50,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2019-10-15 00:21:50,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-10-15 00:21:50,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2019-10-15 00:21:50,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2019-10-15 00:21:50,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2019-10-15 00:21:50,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2019-10-15 00:21:50,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2019-10-15 00:21:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 00:21:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 00:21:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 00:21:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 00:21:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 00:21:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-15 00:21:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 00:21:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 00:21:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-15 00:21:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 00:21:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 00:21:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 00:21:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-15 00:21:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-15 00:21:50,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-15 00:21:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-15 00:21:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-15 00:21:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 00:21:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-15 00:21:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-15 00:21:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2019-10-15 00:21:50,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gigaset_ops_1 [2019-10-15 00:21:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2019-10-15 00:21:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-15 00:21:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2019-10-15 00:21:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 00:21:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 00:21:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2019-10-15 00:21:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2019-10-15 00:21:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_send_skb [2019-10-15 00:21:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_input [2019-10-15 00:21:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_skb_sent [2019-10-15 00:21:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initdriver [2019-10-15 00:21:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2019-10-15 00:21:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_blockdriver [2019-10-15 00:21:50,909 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcs [2019-10-15 00:21:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2019-10-15 00:21:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_start [2019-10-15 00:21:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_stop [2019-10-15 00:21:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_shutdown [2019-10-15 00:21:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2019-10-15 00:21:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2019-10-15 00:21:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2019-10-15 00:21:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_up [2019-10-15 00:21:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_fill_inbuf [2019-10-15 00:21:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_probe [2019-10-15 00:21:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2019-10-15 00:21:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2019-10-15 00:21:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2019-10-15 00:21:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_pre_reset [2019-10-15 00:21:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 00:21:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure tiocm_to_gigaset [2019-10-15 00:21:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2019-10-15 00:21:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 00:21:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure set_value [2019-10-15 00:21:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2019-10-15 00:21:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2019-10-15 00:21:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2019-10-15 00:21:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2019-10-15 00:21:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure write_modem [2019-10-15 00:21:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure send_cb [2019-10-15 00:21:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_modem_fill [2019-10-15 00:21:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_read_int_callback [2019-10-15 00:21:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_bulk_callback [2019-10-15 00:21:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 00:21:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_cmd [2019-10-15 00:21:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2019-10-15 00:21:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2019-10-15 00:21:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2019-10-15 00:21:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 00:21:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2019-10-15 00:21:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2019-10-15 00:21:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2019-10-15 00:21:50,914 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2019-10-15 00:21:50,915 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2019-10-15 00:21:50,915 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gigaset_init [2019-10-15 00:21:50,915 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gigaset_exit [2019-10-15 00:21:50,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-15 00:21:50,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2019-10-15 00:21:50,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 00:21:50,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 00:21:50,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 00:21:50,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-15 00:21:50,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2019-10-15 00:21:50,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2019-10-15 00:21:50,916 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-15 00:21:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2019-10-15 00:21:50,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2019-10-15 00:21:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2019-10-15 00:21:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2019-10-15 00:21:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 00:21:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 00:21:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 00:21:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 00:21:50,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 00:21:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 00:21:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 00:21:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 00:21:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 00:21:50,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 00:21:52,262 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-15 00:21:56,083 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2019-10-15 00:21:57,177 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 00:21:57,178 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 00:21:57,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:21:57 BoogieIcfgContainer [2019-10-15 00:21:57,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 00:21:57,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 00:21:57,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 00:21:57,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 00:21:57,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:21:47" (1/3) ... [2019-10-15 00:21:57,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660479fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:21:57, skipping insertion in model container [2019-10-15 00:21:57,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:21:50" (2/3) ... [2019-10-15 00:21:57,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660479fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:21:57, skipping insertion in model container [2019-10-15 00:21:57,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:21:57" (3/3) ... [2019-10-15 00:21:57,191 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2019-10-15 00:21:57,199 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 00:21:57,209 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 00:21:57,221 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 00:21:57,255 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 00:21:57,255 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 00:21:57,255 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 00:21:57,255 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 00:21:57,255 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 00:21:57,256 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 00:21:57,256 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 00:21:57,256 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 00:21:57,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states. [2019-10-15 00:21:57,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-15 00:21:57,319 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:57,320 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] [2019-10-15 00:21:57,322 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:57,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:57,328 INFO L82 PathProgramCache]: Analyzing trace with hash 943132148, now seen corresponding path program 1 times [2019-10-15 00:21:57,335 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:57,335 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360065670] [2019-10-15 00:21:57,336 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:57,336 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:57,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:58,120 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 00:21:58,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360065670] [2019-10-15 00:21:58,122 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:58,122 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:58,123 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134047471] [2019-10-15 00:21:58,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:58,131 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:58,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:58,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:58,150 INFO L87 Difference]: Start difference. First operand 1109 states. Second operand 3 states. [2019-10-15 00:21:58,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:58,467 INFO L93 Difference]: Finished difference Result 2705 states and 3644 transitions. [2019-10-15 00:21:58,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:58,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2019-10-15 00:21:58,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:58,518 INFO L225 Difference]: With dead ends: 2705 [2019-10-15 00:21:58,519 INFO L226 Difference]: Without dead ends: 1780 [2019-10-15 00:21:58,530 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 [2019-10-15 00:21:58,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2019-10-15 00:21:58,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1770. [2019-10-15 00:21:58,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1770 states. [2019-10-15 00:21:58,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2354 transitions. [2019-10-15 00:21:58,776 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2354 transitions. Word has length 76 [2019-10-15 00:21:58,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:58,777 INFO L462 AbstractCegarLoop]: Abstraction has 1770 states and 2354 transitions. [2019-10-15 00:21:58,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:58,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2354 transitions. [2019-10-15 00:21:58,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-15 00:21:58,788 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:58,788 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] [2019-10-15 00:21:58,789 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:58,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:58,789 INFO L82 PathProgramCache]: Analyzing trace with hash -828302111, now seen corresponding path program 1 times [2019-10-15 00:21:58,790 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:58,790 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167844902] [2019-10-15 00:21:58,790 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:58,790 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:58,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 00:21:59,124 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167844902] [2019-10-15 00:21:59,124 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:59,124 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:59,124 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246405041] [2019-10-15 00:21:59,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:59,127 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:59,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:59,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:59,128 INFO L87 Difference]: Start difference. First operand 1770 states and 2354 transitions. Second operand 3 states. [2019-10-15 00:21:59,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:59,327 INFO L93 Difference]: Finished difference Result 5255 states and 7148 transitions. [2019-10-15 00:21:59,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:59,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-10-15 00:21:59,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:59,353 INFO L225 Difference]: With dead ends: 5255 [2019-10-15 00:21:59,354 INFO L226 Difference]: Without dead ends: 3510 [2019-10-15 00:21:59,363 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 [2019-10-15 00:21:59,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3510 states. [2019-10-15 00:21:59,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3510 to 3501. [2019-10-15 00:21:59,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3501 states. [2019-10-15 00:21:59,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 4715 transitions. [2019-10-15 00:21:59,595 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 4715 transitions. Word has length 77 [2019-10-15 00:21:59,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:21:59,596 INFO L462 AbstractCegarLoop]: Abstraction has 3501 states and 4715 transitions. [2019-10-15 00:21:59,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:21:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 4715 transitions. [2019-10-15 00:21:59,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-15 00:21:59,600 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:21:59,600 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] [2019-10-15 00:21:59,600 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:21:59,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:21:59,601 INFO L82 PathProgramCache]: Analyzing trace with hash 91815575, now seen corresponding path program 1 times [2019-10-15 00:21:59,601 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:21:59,601 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833356210] [2019-10-15 00:21:59,601 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:59,602 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:21:59,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:21:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:21:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 00:21:59,785 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833356210] [2019-10-15 00:21:59,785 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:21:59,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:21:59,786 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827855743] [2019-10-15 00:21:59,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:21:59,786 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:21:59,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:21:59,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:21:59,787 INFO L87 Difference]: Start difference. First operand 3501 states and 4715 transitions. Second operand 3 states. [2019-10-15 00:21:59,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:21:59,920 INFO L93 Difference]: Finished difference Result 3508 states and 4721 transitions. [2019-10-15 00:21:59,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:21:59,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2019-10-15 00:21:59,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:21:59,947 INFO L225 Difference]: With dead ends: 3508 [2019-10-15 00:21:59,947 INFO L226 Difference]: Without dead ends: 3505 [2019-10-15 00:21:59,950 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 [2019-10-15 00:21:59,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3505 states. [2019-10-15 00:22:00,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3505 to 3502. [2019-10-15 00:22:00,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3502 states. [2019-10-15 00:22:00,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3502 states to 3502 states and 4716 transitions. [2019-10-15 00:22:00,168 INFO L78 Accepts]: Start accepts. Automaton has 3502 states and 4716 transitions. Word has length 78 [2019-10-15 00:22:00,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:00,170 INFO L462 AbstractCegarLoop]: Abstraction has 3502 states and 4716 transitions. [2019-10-15 00:22:00,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states and 4716 transitions. [2019-10-15 00:22:00,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-15 00:22:00,177 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:00,178 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] [2019-10-15 00:22:00,178 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:00,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:00,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1449302364, now seen corresponding path program 1 times [2019-10-15 00:22:00,179 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:00,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758278397] [2019-10-15 00:22:00,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:00,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:00,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:00,494 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 00:22:00,495 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758278397] [2019-10-15 00:22:00,495 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:00,495 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:22:00,495 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871930685] [2019-10-15 00:22:00,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:00,496 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:00,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:00,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:22:00,497 INFO L87 Difference]: Start difference. First operand 3502 states and 4716 transitions. Second operand 3 states. [2019-10-15 00:22:00,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:00,638 INFO L93 Difference]: Finished difference Result 3504 states and 4717 transitions. [2019-10-15 00:22:00,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:00,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2019-10-15 00:22:00,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:00,679 INFO L225 Difference]: With dead ends: 3504 [2019-10-15 00:22:00,680 INFO L226 Difference]: Without dead ends: 3501 [2019-10-15 00:22:00,682 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 [2019-10-15 00:22:00,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2019-10-15 00:22:00,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 3501. [2019-10-15 00:22:00,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3501 states. [2019-10-15 00:22:00,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 4714 transitions. [2019-10-15 00:22:00,929 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 4714 transitions. Word has length 79 [2019-10-15 00:22:00,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:00,929 INFO L462 AbstractCegarLoop]: Abstraction has 3501 states and 4714 transitions. [2019-10-15 00:22:00,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:00,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 4714 transitions. [2019-10-15 00:22:00,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-15 00:22:00,933 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:00,933 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] [2019-10-15 00:22:00,933 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:00,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:00,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1979313350, now seen corresponding path program 1 times [2019-10-15 00:22:00,934 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:00,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929020941] [2019-10-15 00:22:00,935 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:00,935 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:00,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:01,239 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 00:22:01,240 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929020941] [2019-10-15 00:22:01,240 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:01,240 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:22:01,241 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039340322] [2019-10-15 00:22:01,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:01,242 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:01,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:01,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:22:01,242 INFO L87 Difference]: Start difference. First operand 3501 states and 4714 transitions. Second operand 3 states. [2019-10-15 00:22:01,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:01,361 INFO L93 Difference]: Finished difference Result 3503 states and 4715 transitions. [2019-10-15 00:22:01,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:01,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-10-15 00:22:01,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:01,387 INFO L225 Difference]: With dead ends: 3503 [2019-10-15 00:22:01,387 INFO L226 Difference]: Without dead ends: 3465 [2019-10-15 00:22:01,392 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 [2019-10-15 00:22:01,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2019-10-15 00:22:01,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3465. [2019-10-15 00:22:01,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3465 states. [2019-10-15 00:22:01,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3465 states to 3465 states and 4672 transitions. [2019-10-15 00:22:01,591 INFO L78 Accepts]: Start accepts. Automaton has 3465 states and 4672 transitions. Word has length 80 [2019-10-15 00:22:01,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:01,592 INFO L462 AbstractCegarLoop]: Abstraction has 3465 states and 4672 transitions. [2019-10-15 00:22:01,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:01,592 INFO L276 IsEmpty]: Start isEmpty. Operand 3465 states and 4672 transitions. [2019-10-15 00:22:01,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 00:22:01,609 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:01,610 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] [2019-10-15 00:22:01,610 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:01,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:01,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1822522790, now seen corresponding path program 1 times [2019-10-15 00:22:01,612 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:01,612 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975467559] [2019-10-15 00:22:01,616 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:01,617 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:01,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:01,880 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-15 00:22:01,880 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975467559] [2019-10-15 00:22:01,881 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:01,881 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:22:01,882 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507497971] [2019-10-15 00:22:01,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:01,883 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:01,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:01,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:22:01,888 INFO L87 Difference]: Start difference. First operand 3465 states and 4672 transitions. Second operand 3 states. [2019-10-15 00:22:02,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:02,304 INFO L93 Difference]: Finished difference Result 8772 states and 11776 transitions. [2019-10-15 00:22:02,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:02,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2019-10-15 00:22:02,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:02,340 INFO L225 Difference]: With dead ends: 8772 [2019-10-15 00:22:02,340 INFO L226 Difference]: Without dead ends: 5332 [2019-10-15 00:22:02,418 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 [2019-10-15 00:22:02,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5332 states. [2019-10-15 00:22:02,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5332 to 5225. [2019-10-15 00:22:02,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5225 states. [2019-10-15 00:22:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 7010 transitions. [2019-10-15 00:22:02,682 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 7010 transitions. Word has length 234 [2019-10-15 00:22:02,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:02,684 INFO L462 AbstractCegarLoop]: Abstraction has 5225 states and 7010 transitions. [2019-10-15 00:22:02,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:02,684 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 7010 transitions. [2019-10-15 00:22:02,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-15 00:22:02,699 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:02,699 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] [2019-10-15 00:22:02,700 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:02,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:02,700 INFO L82 PathProgramCache]: Analyzing trace with hash -2116558061, now seen corresponding path program 1 times [2019-10-15 00:22:02,700 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:02,701 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097925506] [2019-10-15 00:22:02,701 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:02,701 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:02,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:03,013 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-10-15 00:22:03,013 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097925506] [2019-10-15 00:22:03,014 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491473648] [2019-10-15 00:22:03,014 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 [2019-10-15 00:22:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:03,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 3060 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-15 00:22:03,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 00:22:04,127 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-15 00:22:04,127 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 00:22:04,476 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-15 00:22:04,477 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 00:22:04,477 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 6 [2019-10-15 00:22:04,477 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723751499] [2019-10-15 00:22:04,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:04,479 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:04,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:04,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:22:04,480 INFO L87 Difference]: Start difference. First operand 5225 states and 7010 transitions. Second operand 3 states. [2019-10-15 00:22:04,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:04,690 INFO L93 Difference]: Finished difference Result 10429 states and 14013 transitions. [2019-10-15 00:22:04,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:04,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2019-10-15 00:22:04,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:04,738 INFO L225 Difference]: With dead ends: 10429 [2019-10-15 00:22:04,738 INFO L226 Difference]: Without dead ends: 5229 [2019-10-15 00:22:04,759 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 [2019-10-15 00:22:04,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5229 states. [2019-10-15 00:22:05,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5229 to 5229. [2019-10-15 00:22:05,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5229 states. [2019-10-15 00:22:05,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5229 states to 5229 states and 7014 transitions. [2019-10-15 00:22:05,072 INFO L78 Accepts]: Start accepts. Automaton has 5229 states and 7014 transitions. Word has length 281 [2019-10-15 00:22:05,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:05,072 INFO L462 AbstractCegarLoop]: Abstraction has 5229 states and 7014 transitions. [2019-10-15 00:22:05,072 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:05,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5229 states and 7014 transitions. [2019-10-15 00:22:05,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-15 00:22:05,087 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:05,087 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] [2019-10-15 00:22:05,306 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:22:05,307 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:05,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:05,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1135603247, now seen corresponding path program 1 times [2019-10-15 00:22:05,308 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:05,308 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582973151] [2019-10-15 00:22:05,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:05,309 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:05,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-10-15 00:22:06,230 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582973151] [2019-10-15 00:22:06,230 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996231748] [2019-10-15 00:22:06,230 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 [2019-10-15 00:22:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:07,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 3063 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 00:22:07,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 00:22:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-15 00:22:07,232 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 00:22:07,595 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-10-15 00:22:07,596 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 00:22:07,596 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 6 [2019-10-15 00:22:07,597 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606865842] [2019-10-15 00:22:07,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:07,599 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:07,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:07,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:22:07,600 INFO L87 Difference]: Start difference. First operand 5229 states and 7014 transitions. Second operand 3 states. [2019-10-15 00:22:09,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:09,975 INFO L93 Difference]: Finished difference Result 10454 states and 14025 transitions. [2019-10-15 00:22:09,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:09,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2019-10-15 00:22:09,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:10,001 INFO L225 Difference]: With dead ends: 10454 [2019-10-15 00:22:10,001 INFO L226 Difference]: Without dead ends: 5248 [2019-10-15 00:22:10,020 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 [2019-10-15 00:22:10,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5248 states. [2019-10-15 00:22:10,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5248 to 5232. [2019-10-15 00:22:10,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5232 states. [2019-10-15 00:22:10,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5232 states to 5232 states and 7015 transitions. [2019-10-15 00:22:10,250 INFO L78 Accepts]: Start accepts. Automaton has 5232 states and 7015 transitions. Word has length 281 [2019-10-15 00:22:10,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:10,251 INFO L462 AbstractCegarLoop]: Abstraction has 5232 states and 7015 transitions. [2019-10-15 00:22:10,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5232 states and 7015 transitions. [2019-10-15 00:22:10,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2019-10-15 00:22:10,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:10,266 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] [2019-10-15 00:22:10,485 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 00:22:10,485 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:10,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:10,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1116298282, now seen corresponding path program 1 times [2019-10-15 00:22:10,486 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:10,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169647941] [2019-10-15 00:22:10,486 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:10,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:10,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:10,769 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-10-15 00:22:10,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169647941] [2019-10-15 00:22:10,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:10,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 00:22:10,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787491924] [2019-10-15 00:22:10,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 00:22:10,772 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:10,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 00:22:10,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 00:22:10,772 INFO L87 Difference]: Start difference. First operand 5232 states and 7015 transitions. Second operand 3 states. [2019-10-15 00:22:13,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:13,064 INFO L93 Difference]: Finished difference Result 10573 states and 14212 transitions. [2019-10-15 00:22:13,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 00:22:13,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 297 [2019-10-15 00:22:13,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:13,098 INFO L225 Difference]: With dead ends: 10573 [2019-10-15 00:22:13,098 INFO L226 Difference]: Without dead ends: 4936 [2019-10-15 00:22:13,119 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 [2019-10-15 00:22:13,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4936 states. [2019-10-15 00:22:13,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4936 to 4936. [2019-10-15 00:22:13,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4936 states. [2019-10-15 00:22:13,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4936 states to 4936 states and 6643 transitions. [2019-10-15 00:22:13,311 INFO L78 Accepts]: Start accepts. Automaton has 4936 states and 6643 transitions. Word has length 297 [2019-10-15 00:22:13,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:13,314 INFO L462 AbstractCegarLoop]: Abstraction has 4936 states and 6643 transitions. [2019-10-15 00:22:13,314 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 00:22:13,314 INFO L276 IsEmpty]: Start isEmpty. Operand 4936 states and 6643 transitions. [2019-10-15 00:22:13,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2019-10-15 00:22:13,329 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:13,329 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] [2019-10-15 00:22:13,330 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:13,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:13,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1152865943, now seen corresponding path program 1 times [2019-10-15 00:22:13,330 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:13,330 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977343681] [2019-10-15 00:22:13,331 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:13,331 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:13,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-10-15 00:22:13,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977343681] [2019-10-15 00:22:13,792 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:13,792 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 00:22:13,792 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261826330] [2019-10-15 00:22:13,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 00:22:13,793 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:13,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 00:22:13,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 00:22:13,794 INFO L87 Difference]: Start difference. First operand 4936 states and 6643 transitions. Second operand 6 states. [2019-10-15 00:22:16,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:16,201 INFO L93 Difference]: Finished difference Result 13982 states and 18907 transitions. [2019-10-15 00:22:16,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 00:22:16,202 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 302 [2019-10-15 00:22:16,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 00:22:16,240 INFO L225 Difference]: With dead ends: 13982 [2019-10-15 00:22:16,240 INFO L226 Difference]: Without dead ends: 9547 [2019-10-15 00:22:16,261 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 [2019-10-15 00:22:16,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9547 states. [2019-10-15 00:22:16,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9547 to 5028. [2019-10-15 00:22:16,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5028 states. [2019-10-15 00:22:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 6785 transitions. [2019-10-15 00:22:16,518 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 6785 transitions. Word has length 302 [2019-10-15 00:22:16,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 00:22:16,519 INFO L462 AbstractCegarLoop]: Abstraction has 5028 states and 6785 transitions. [2019-10-15 00:22:16,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 00:22:16,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 6785 transitions. [2019-10-15 00:22:16,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2019-10-15 00:22:16,533 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 00:22:16,533 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] [2019-10-15 00:22:16,534 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 00:22:16,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 00:22:16,534 INFO L82 PathProgramCache]: Analyzing trace with hash 2112742055, now seen corresponding path program 1 times [2019-10-15 00:22:16,534 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 00:22:16,534 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380535668] [2019-10-15 00:22:16,535 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:16,535 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 00:22:16,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 00:22:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 00:22:16,870 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2019-10-15 00:22:16,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380535668] [2019-10-15 00:22:16,871 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 00:22:16,871 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 00:22:16,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338758472] [2019-10-15 00:22:16,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 00:22:16,872 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 00:22:16,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 00:22:16,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 00:22:16,873 INFO L87 Difference]: Start difference. First operand 5028 states and 6785 transitions. Second operand 4 states. [2019-10-15 00:22:17,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 00:22:17,119 INFO L93 Difference]: Finished difference Result 10026 states and 13535 transitions. [2019-10-15 00:22:17,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 00:22:17,120 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 302 [2019-10-15 00:22:17,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted.