java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 10:10:27,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 10:10:27,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 10:10:27,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 10:10:27,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 10:10:27,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 10:10:27,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 10:10:27,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 10:10:27,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 10:10:27,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 10:10:27,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 10:10:27,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 10:10:27,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 10:10:27,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 10:10:27,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 10:10:27,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 10:10:27,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 10:10:27,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 10:10:27,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 10:10:27,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 10:10:27,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 10:10:27,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 10:10:27,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 10:10:27,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 10:10:27,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 10:10:27,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 10:10:27,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 10:10:27,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 10:10:27,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 10:10:27,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 10:10:27,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 10:10:27,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 10:10:27,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 10:10:27,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 10:10:27,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 10:10:27,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 10:10:27,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 10:10:27,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 10:10:27,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 10:10:27,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 10:10:27,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 10:10:27,416 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 [2019-10-02 10:10:27,431 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 10:10:27,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 10:10:27,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 10:10:27,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 10:10:27,433 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 10:10:27,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 10:10:27,433 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 10:10:27,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 10:10:27,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 10:10:27,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 10:10:27,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 10:10:27,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 10:10:27,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 10:10:27,435 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 10:10:27,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 10:10:27,435 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 10:10:27,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 10:10:27,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 10:10:27,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 10:10:27,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 10:10:27,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 10:10:27,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 10:10:27,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 10:10:27,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 10:10:27,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 10:10:27,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 10:10:27,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 10:10:27,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 10:10:27,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 10:10:27,466 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 10:10:27,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 10:10:27,483 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 10:10:27,484 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 10:10:27,484 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 10:10:27,485 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2019-10-02 10:10:27,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfa7bc5ad/d9cf8771261c4821b17cad1fd57d93bd/FLAG04e92b955 [2019-10-02 10:10:28,404 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 10:10:28,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2019-10-02 10:10:28,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfa7bc5ad/d9cf8771261c4821b17cad1fd57d93bd/FLAG04e92b955 [2019-10-02 10:10:28,896 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfa7bc5ad/d9cf8771261c4821b17cad1fd57d93bd [2019-10-02 10:10:28,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 10:10:28,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 10:10:28,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 10:10:28,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 10:10:28,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 10:10:28,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:10:28" (1/1) ... [2019-10-02 10:10:28,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e484f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:10:28, skipping insertion in model container [2019-10-02 10:10:28,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 10:10:28" (1/1) ... [2019-10-02 10:10:28,927 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 10:10:29,086 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 10:10:31,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 10:10:31,466 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 10:10:31,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 10:10:32,437 INFO L192 MainTranslator]: Completed translation [2019-10-02 10:10:32,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:10:32 WrapperNode [2019-10-02 10:10:32,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 10:10:32,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 10:10:32,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 10:10:32,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 10:10:32,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:10:32" (1/1) ... [2019-10-02 10:10:32,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:10:32" (1/1) ... [2019-10-02 10:10:32,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:10:32" (1/1) ... [2019-10-02 10:10:32,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:10:32" (1/1) ... [2019-10-02 10:10:32,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:10:32" (1/1) ... [2019-10-02 10:10:32,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:10:32" (1/1) ... [2019-10-02 10:10:33,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:10:32" (1/1) ... [2019-10-02 10:10:33,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 10:10:33,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 10:10:33,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 10:10:33,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 10:10:33,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:10:32" (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 [2019-10-02 10:10:33,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 10:10:33,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 10:10:33,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2019-10-02 10:10:33,180 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-02 10:10:33,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2019-10-02 10:10:33,181 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-02 10:10:33,181 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-02 10:10:33,181 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-02 10:10:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2019-10-02 10:10:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-02 10:10:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-02 10:10:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-02 10:10:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-02 10:10:33,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-02 10:10:33,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-02 10:10:33,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-02 10:10:33,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-02 10:10:33,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-02 10:10:33,187 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-02 10:10:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-02 10:10:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-02 10:10:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_cmpxchg [2019-10-02 10:10:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __atomic_add_unless [2019-10-02 10:10:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_unless [2019-10-02 10:10:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-02 10:10:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-02 10:10:33,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2019-10-02 10:10:33,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_8 [2019-10-02 10:10:33,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2019-10-02 10:10:33,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_11 [2019-10-02 10:10:33,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2019-10-02 10:10:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2019-10-02 10:10:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-10-02 10:10:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2019-10-02 10:10:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get_unless_zero [2019-10-02 10:10:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-02 10:10:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-02 10:10:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-02 10:10:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-02 10:10:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tty_driver [2019-10-02 10:10:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2019-10-02 10:10:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_get [2019-10-02 10:10:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2019-10-02 10:10:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-10-02 10:10:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2019-10-02 10:10:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2019-10-02 10:10:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2019-10-02 10:10:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2019-10-02 10:10:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2019-10-02 10:10:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2019-10-02 10:10:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2019-10-02 10:10:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-02 10:10:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-02 10:10:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_mark_last_busy [2019-10-02 10:10:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-10-02 10:10:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-10-02 10:10:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-10-02 10:10:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2019-10-02 10:10:33,194 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_interface_claimed [2019-10-02 10:10:33,194 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2019-10-02 10:10:33,194 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-10-02 10:10:33,194 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2019-10-02 10:10:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-10-02 10:10:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2019-10-02 10:10:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2019-10-02 10:10:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_get_by_minor [2019-10-02 10:10:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_alloc_minor [2019-10-02 10:10:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2019-10-02 10:10:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2019-10-02 10:10:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_set_control [2019-10-02 10:10:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_alloc [2019-10-02 10:10:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2019-10-02 10:10:33,198 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2019-10-02 10:10:33,198 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2019-10-02 10:10:33,198 INFO L138 BoogieDeclarations]: Found implementation of procedure show_caps [2019-10-02 10:10:33,199 INFO L138 BoogieDeclarations]: Found implementation of procedure show_country_codes [2019-10-02 10:10:33,199 INFO L138 BoogieDeclarations]: Found implementation of procedure show_country_rel_date [2019-10-02 10:10:33,199 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2019-10-02 10:10:33,199 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2019-10-02 10:10:33,199 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2019-10-02 10:10:33,199 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_process_read_urb [2019-10-02 10:10:33,200 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2019-10-02 10:10:33,200 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_bulk [2019-10-02 10:10:33,200 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_softint [2019-10-02 10:10:33,200 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2019-10-02 10:10:33,201 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_open [2019-10-02 10:10:33,201 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2019-10-02 10:10:33,201 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_activate [2019-10-02 10:10:33,201 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_destruct [2019-10-02 10:10:33,201 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_shutdown [2019-10-02 10:10:33,202 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2019-10-02 10:10:33,202 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2019-10-02 10:10:33,202 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_close [2019-10-02 10:10:33,202 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write [2019-10-02 10:10:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2019-10-02 10:10:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2019-10-02 10:10:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2019-10-02 10:10:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2019-10-02 10:10:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2019-10-02 10:10:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2019-10-02 10:10:33,203 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2019-10-02 10:10:33,204 INFO L138 BoogieDeclarations]: Found implementation of procedure get_serial_info [2019-10-02 10:10:33,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_serial_info [2019-10-02 10:10:33,204 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_serial_change [2019-10-02 10:10:33,204 INFO L138 BoogieDeclarations]: Found implementation of procedure get_serial_usage [2019-10-02 10:10:33,204 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2019-10-02 10:10:33,204 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2019-10-02 10:10:33,204 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2019-10-02 10:10:33,205 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2019-10-02 10:10:33,205 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_alloc [2019-10-02 10:10:33,205 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_probe [2019-10-02 10:10:33,205 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2019-10-02 10:10:33,205 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2019-10-02 10:10:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_suspend [2019-10-02 10:10:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2019-10-02 10:10:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_reset_resume [2019-10-02 10:10:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_init [2019-10-02 10:10:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_exit [2019-10-02 10:10:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2019-10-02 10:10:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_operations_4 [2019-10-02 10:10:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2019-10-02 10:10:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_3 [2019-10-02 10:10:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_tty_operations_2 [2019-10-02 10:10:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2019-10-02 10:10:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2019-10-02 10:10:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2019-10-02 10:10:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2019-10-02 10:10:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 10:10:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-02 10:10:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-02 10:10:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-02 10:10:33,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-10-02 10:10:33,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-02 10:10:33,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-10-02 10:10:33,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-02 10:10:33,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_15 [2019-10-02 10:10:33,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_16 [2019-10-02 10:10:33,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_17 [2019-10-02 10:10:33,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_18 [2019-10-02 10:10:33,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_19 [2019-10-02 10:10:33,215 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-02 10:10:33,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_25 [2019-10-02 10:10:33,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2019-10-02 10:10:33,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2019-10-02 10:10:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_30 [2019-10-02 10:10:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2019-10-02 10:10:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_32 [2019-10-02 10:10:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_33 [2019-10-02 10:10:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_34 [2019-10-02 10:10:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_35 [2019-10-02 10:10:33,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_36 [2019-10-02 10:10:33,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_37 [2019-10-02 10:10:33,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_38 [2019-10-02 10:10:33,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_39 [2019-10-02 10:10:33,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_40 [2019-10-02 10:10:33,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_41 [2019-10-02 10:10:33,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-02 10:10:33,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-02 10:10:33,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-02 10:10:33,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-02 10:10:33,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-02 10:10:33,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-02 10:10:33,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-02 10:10:33,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-02 10:10:33,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-02 10:10:33,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-02 10:10:33,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-02 10:10:33,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-02 10:10:33,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-02 10:10:33,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-02 10:10:33,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-02 10:10:33,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-10-02 10:10:33,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2019-10-02 10:10:33,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-02 10:10:33,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-02 10:10:33,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __tty_alloc_driver [2019-10-02 10:10:33,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-02 10:10:33,228 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-02 10:10:33,228 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-02 10:10:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-10-02 10:10:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-02 10:10:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-10-02 10:10:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-02 10:10:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-10-02 10:10:33,229 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-02 10:10:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2019-10-02 10:10:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2019-10-02 10:10:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2019-10-02 10:10:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2019-10-02 10:10:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-02 10:10:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-10-02 10:10:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2019-10-02 10:10:33,230 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2019-10-02 10:10:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2019-10-02 10:10:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2019-10-02 10:10:33,231 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find_slowpath [2019-10-02 10:10:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2019-10-02 10:10:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-02 10:10:33,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-02 10:10:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-02 10:10:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-02 10:10:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-02 10:10:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-02 10:10:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-02 10:10:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2019-10-02 10:10:33,233 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2019-10-02 10:10:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2019-10-02 10:10:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2019-10-02 10:10:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2019-10-02 10:10:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2019-10-02 10:10:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2019-10-02 10:10:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2019-10-02 10:10:33,234 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_close [2019-10-02 10:10:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_hangup [2019-10-02 10:10:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_init [2019-10-02 10:10:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_open [2019-10-02 10:10:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2019-10-02 10:10:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_register_device [2019-10-02 10:10:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2019-10-02 10:10:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2019-10-02 10:10:33,235 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_wakeup [2019-10-02 10:10:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_driver [2019-10-02 10:10:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_operations [2019-10-02 10:10:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_standard_install [2019-10-02 10:10:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2019-10-02 10:10:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_device [2019-10-02 10:10:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2019-10-02 10:10:33,236 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_vhangup [2019-10-02 10:10:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2019-10-02 10:10:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2019-10-02 10:10:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2019-10-02 10:10:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_no_resume [2019-10-02 10:10:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2019-10-02 10:10:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2019-10-02 10:10:33,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2019-10-02 10:10:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-10-02 10:10:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-10-02 10:10:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_claim_interface [2019-10-02 10:10:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2019-10-02 10:10:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-10-02 10:10:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-10-02 10:10:33,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2019-10-02 10:10:33,239 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2019-10-02 10:10:33,239 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2019-10-02 10:10:33,239 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-10-02 10:10:33,239 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2019-10-02 10:10:33,239 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-10-02 10:10:33,239 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2019-10-02 10:10:33,239 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-02 10:10:33,240 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-02 10:10:33,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-02 10:10:33,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-02 10:10:33,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-02 10:10:33,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2019-10-02 10:10:33,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 10:10:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-02 10:10:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2019-10-02 10:10:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-02 10:10:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 10:10:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 10:10:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-02 10:10:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2019-10-02 10:10:33,241 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-02 10:10:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-02 10:10:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-02 10:10:33,242 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2019-10-02 10:10:33,243 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-02 10:10:33,246 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-02 10:10:33,247 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2019-10-02 10:10:33,247 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-02 10:10:33,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-02 10:10:33,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-02 10:10:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-02 10:10:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-02 10:10:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 10:10:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-02 10:10:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-02 10:10:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2019-10-02 10:10:33,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 10:10:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-02 10:10:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-02 10:10:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-02 10:10:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-02 10:10:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 10:10:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-02 10:10:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-02 10:10:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-02 10:10:33,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-02 10:10:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-02 10:10:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-02 10:10:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-02 10:10:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-02 10:10:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-02 10:10:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-02 10:10:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 10:10:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-02 10:10:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-02 10:10:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-02 10:10:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-10-02 10:10:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-02 10:10:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-02 10:10:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2019-10-02 10:10:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2019-10-02 10:10:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-02 10:10:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_cmpxchg [2019-10-02 10:10:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure __atomic_add_unless [2019-10-02 10:10:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_unless [2019-10-02 10:10:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-02 10:10:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-02 10:10:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-02 10:10:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-02 10:10:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-10-02 10:10:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-02 10:10:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-10-02 10:10:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-02 10:10:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-02 10:10:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2019-10-02 10:10:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-02 10:10:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_8 [2019-10-02 10:10:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-10-02 10:10:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2019-10-02 10:10:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-02 10:10:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_11 [2019-10-02 10:10:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-10-02 10:10:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2019-10-02 10:10:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-02 10:10:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2019-10-02 10:10:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-02 10:10:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2019-10-02 10:10:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2019-10-02 10:10:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-02 10:10:33,256 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-02 10:10:33,257 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-02 10:10:33,257 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-02 10:10:33,257 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2019-10-02 10:10:33,257 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-10-02 10:10:33,257 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2019-10-02 10:10:33,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_15 [2019-10-02 10:10:33,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_17 [2019-10-02 10:10:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2019-10-02 10:10:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_16 [2019-10-02 10:10:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_19 [2019-10-02 10:10:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2019-10-02 10:10:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_18 [2019-10-02 10:10:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2019-10-02 10:10:33,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_38 [2019-10-02 10:10:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2019-10-02 10:10:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-10-02 10:10:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find_slowpath [2019-10-02 10:10:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2019-10-02 10:10:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2019-10-02 10:10:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2019-10-02 10:10:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 10:10:33,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 10:10:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 10:10:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get_unless_zero [2019-10-02 10:10:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2019-10-02 10:10:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2019-10-02 10:10:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-02 10:10:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-02 10:10:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-02 10:10:33,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_25 [2019-10-02 10:10:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-02 10:10:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-02 10:10:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2019-10-02 10:10:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_operations_4 [2019-10-02 10:10:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2019-10-02 10:10:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_3 [2019-10-02 10:10:33,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_tty_operations_2 [2019-10-02 10:10:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2019-10-02 10:10:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2019-10-02 10:10:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2019-10-02 10:10:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2019-10-02 10:10:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-02 10:10:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-02 10:10:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-02 10:10:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-02 10:10:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-02 10:10:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-02 10:10:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure __tty_alloc_driver [2019-10-02 10:10:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2019-10-02 10:10:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_operations [2019-10-02 10:10:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tty_driver [2019-10-02 10:10:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2019-10-02 10:10:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_driver [2019-10-02 10:10:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2019-10-02 10:10:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_device [2019-10-02 10:10:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure tty_vhangup [2019-10-02 10:10:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2019-10-02 10:10:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2019-10-02 10:10:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure tty_standard_install [2019-10-02 10:10:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_init [2019-10-02 10:10:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_register_device [2019-10-02 10:10:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2019-10-02 10:10:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_get [2019-10-02 10:10:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2019-10-02 10:10:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_hangup [2019-10-02 10:10:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2019-10-02 10:10:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_wakeup [2019-10-02 10:10:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_close [2019-10-02 10:10:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_open [2019-10-02 10:10:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2019-10-02 10:10:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2019-10-02 10:10:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2019-10-02 10:10:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-10-02 10:10:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2019-10-02 10:10:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2019-10-02 10:10:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2019-10-02 10:10:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2019-10-02 10:10:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2019-10-02 10:10:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2019-10-02 10:10:33,269 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2019-10-02 10:10:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2019-10-02 10:10:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2019-10-02 10:10:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-02 10:10:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-02 10:10:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-02 10:10:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-10-02 10:10:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-10-02 10:10:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_mark_last_busy [2019-10-02 10:10:33,270 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-10-02 10:10:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-10-02 10:10:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2019-10-02 10:10:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2019-10-02 10:10:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-10-02 10:10:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2019-10-02 10:10:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2019-10-02 10:10:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2019-10-02 10:10:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2019-10-02 10:10:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_no_resume [2019-10-02 10:10:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2019-10-02 10:10:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_claim_interface [2019-10-02 10:10:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_interface_claimed [2019-10-02 10:10:33,272 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2019-10-02 10:10:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2019-10-02 10:10:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-10-02 10:10:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_40 [2019-10-02 10:10:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-10-02 10:10:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_41 [2019-10-02 10:10:33,273 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2019-10-02 10:10:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-10-02 10:10:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2019-10-02 10:10:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_34 [2019-10-02 10:10:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_36 [2019-10-02 10:10:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_37 [2019-10-02 10:10:33,274 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-10-02 10:10:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2019-10-02 10:10:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2019-10-02 10:10:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_30 [2019-10-02 10:10:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2019-10-02 10:10:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_39 [2019-10-02 10:10:33,275 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-10-02 10:10:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2019-10-02 10:10:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2019-10-02 10:10:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_32 [2019-10-02 10:10:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_33 [2019-10-02 10:10:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_35 [2019-10-02 10:10:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-10-02 10:10:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-10-02 10:10:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2019-10-02 10:10:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-10-02 10:10:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2019-10-02 10:10:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2019-10-02 10:10:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2019-10-02 10:10:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure acm_get_by_minor [2019-10-02 10:10:33,278 INFO L130 BoogieDeclarations]: Found specification of procedure acm_alloc_minor [2019-10-02 10:10:33,278 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2019-10-02 10:10:33,278 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2019-10-02 10:10:33,278 INFO L130 BoogieDeclarations]: Found specification of procedure acm_set_control [2019-10-02 10:10:33,278 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_alloc [2019-10-02 10:10:33,278 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2019-10-02 10:10:33,278 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2019-10-02 10:10:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2019-10-02 10:10:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure show_caps [2019-10-02 10:10:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure show_country_codes [2019-10-02 10:10:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2019-10-02 10:10:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure show_country_rel_date [2019-10-02 10:10:33,279 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2019-10-02 10:10:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2019-10-02 10:10:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2019-10-02 10:10:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure acm_process_read_urb [2019-10-02 10:10:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2019-10-02 10:10:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_bulk [2019-10-02 10:10:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure acm_softint [2019-10-02 10:10:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2019-10-02 10:10:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_open [2019-10-02 10:10:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2019-10-02 10:10:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_activate [2019-10-02 10:10:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_destruct [2019-10-02 10:10:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_shutdown [2019-10-02 10:10:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2019-10-02 10:10:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2019-10-02 10:10:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_close [2019-10-02 10:10:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write [2019-10-02 10:10:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2019-10-02 10:10:33,282 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2019-10-02 10:10:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2019-10-02 10:10:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2019-10-02 10:10:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2019-10-02 10:10:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2019-10-02 10:10:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2019-10-02 10:10:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure get_serial_info [2019-10-02 10:10:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure set_serial_info [2019-10-02 10:10:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure wait_serial_change [2019-10-02 10:10:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure get_serial_usage [2019-10-02 10:10:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2019-10-02 10:10:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2019-10-02 10:10:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2019-10-02 10:10:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_alloc [2019-10-02 10:10:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure acm_probe [2019-10-02 10:10:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2019-10-02 10:10:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2019-10-02 10:10:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure acm_suspend [2019-10-02 10:10:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2019-10-02 10:10:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure acm_reset_resume [2019-10-02 10:10:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure acm_init [2019-10-02 10:10:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure acm_exit [2019-10-02 10:10:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-02 10:10:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-02 10:10:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 10:10:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-02 10:10:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-02 10:10:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-02 10:10:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-02 10:10:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-02 10:10:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-02 10:10:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-02 10:10:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-02 10:10:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-02 10:10:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-02 10:10:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 10:10:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 10:10:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-02 10:10:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 10:10:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 10:10:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-02 10:10:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-02 10:10:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-02 10:10:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-02 10:10:35,282 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-02 10:10:56,986 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 10:10:56,987 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-02 10:10:56,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:10:56 BoogieIcfgContainer [2019-10-02 10:10:56,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 10:10:56,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 10:10:56,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 10:10:56,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 10:10:56,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 10:10:28" (1/3) ... [2019-10-02 10:10:56,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fd57c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:10:56, skipping insertion in model container [2019-10-02 10:10:56,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 10:10:32" (2/3) ... [2019-10-02 10:10:56,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fd57c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 10:10:56, skipping insertion in model container [2019-10-02 10:10:56,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 10:10:56" (3/3) ... [2019-10-02 10:10:56,997 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2019-10-02 10:10:57,007 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 10:10:57,018 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 10:10:57,032 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 10:10:57,075 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 10:10:57,076 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 10:10:57,076 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 10:10:57,076 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 10:10:57,076 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 10:10:57,077 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 10:10:57,077 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 10:10:57,077 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 10:10:57,077 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 10:10:57,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states. [2019-10-02 10:10:57,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2019-10-02 10:10:57,160 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:10:57,162 INFO L411 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:10:57,165 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:10:57,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:10:57,170 INFO L82 PathProgramCache]: Analyzing trace with hash 116926549, now seen corresponding path program 1 times [2019-10-02 10:10:57,172 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:10:57,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:10:57,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:10:57,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:10:57,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:10:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:10:58,956 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2019-10-02 10:10:58,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:10:58,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 10:10:58,963 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 10:10:58,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 10:10:58,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 10:10:58,980 INFO L87 Difference]: Start difference. First operand 2120 states. Second operand 3 states. [2019-10-02 10:11:00,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:11:00,130 INFO L93 Difference]: Finished difference Result 4958 states and 6567 transitions. [2019-10-02 10:11:00,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 10:11:00,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2019-10-02 10:11:00,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:11:00,185 INFO L225 Difference]: With dead ends: 4958 [2019-10-02 10:11:00,185 INFO L226 Difference]: Without dead ends: 3013 [2019-10-02 10:11:00,201 INFO L640 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 [2019-10-02 10:11:00,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3013 states. [2019-10-02 10:11:00,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3013 to 3003. [2019-10-02 10:11:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3003 states. [2019-10-02 10:11:00,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3003 states to 3003 states and 3937 transitions. [2019-10-02 10:11:00,491 INFO L78 Accepts]: Start accepts. Automaton has 3003 states and 3937 transitions. Word has length 282 [2019-10-02 10:11:00,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:11:00,493 INFO L475 AbstractCegarLoop]: Abstraction has 3003 states and 3937 transitions. [2019-10-02 10:11:00,493 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 10:11:00,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3003 states and 3937 transitions. [2019-10-02 10:11:00,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-02 10:11:00,504 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:11:00,505 INFO L411 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:11:00,505 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:11:00,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:11:00,506 INFO L82 PathProgramCache]: Analyzing trace with hash 483254433, now seen corresponding path program 1 times [2019-10-02 10:11:00,506 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:11:00,506 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:11:00,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:00,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:11:00,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:11:01,550 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2019-10-02 10:11:01,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:11:01,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 10:11:01,553 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 10:11:01,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 10:11:01,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 10:11:01,554 INFO L87 Difference]: Start difference. First operand 3003 states and 3937 transitions. Second operand 3 states. [2019-10-02 10:11:03,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:11:03,089 INFO L93 Difference]: Finished difference Result 8559 states and 11192 transitions. [2019-10-02 10:11:03,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 10:11:03,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 284 [2019-10-02 10:11:03,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:11:03,139 INFO L225 Difference]: With dead ends: 8559 [2019-10-02 10:11:03,139 INFO L226 Difference]: Without dead ends: 5619 [2019-10-02 10:11:03,158 INFO L640 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 [2019-10-02 10:11:03,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5619 states. [2019-10-02 10:11:03,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5619 to 5614. [2019-10-02 10:11:03,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5614 states. [2019-10-02 10:11:03,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5614 states to 5614 states and 7334 transitions. [2019-10-02 10:11:03,391 INFO L78 Accepts]: Start accepts. Automaton has 5614 states and 7334 transitions. Word has length 284 [2019-10-02 10:11:03,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:11:03,392 INFO L475 AbstractCegarLoop]: Abstraction has 5614 states and 7334 transitions. [2019-10-02 10:11:03,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 10:11:03,392 INFO L276 IsEmpty]: Start isEmpty. Operand 5614 states and 7334 transitions. [2019-10-02 10:11:03,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2019-10-02 10:11:03,402 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:11:03,403 INFO L411 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:11:03,403 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:11:03,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:11:03,404 INFO L82 PathProgramCache]: Analyzing trace with hash 825166392, now seen corresponding path program 1 times [2019-10-02 10:11:03,404 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:11:03,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:11:03,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:03,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:11:03,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:11:04,243 INFO L134 CoverageAnalysis]: Checked inductivity of 980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2019-10-02 10:11:04,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:11:04,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 10:11:04,245 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 10:11:04,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 10:11:04,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 10:11:04,246 INFO L87 Difference]: Start difference. First operand 5614 states and 7334 transitions. Second operand 3 states. [2019-10-02 10:11:05,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:11:05,577 INFO L93 Difference]: Finished difference Result 14160 states and 18430 transitions. [2019-10-02 10:11:05,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 10:11:05,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 291 [2019-10-02 10:11:05,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:11:05,644 INFO L225 Difference]: With dead ends: 14160 [2019-10-02 10:11:05,644 INFO L226 Difference]: Without dead ends: 8609 [2019-10-02 10:11:05,671 INFO L640 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 [2019-10-02 10:11:05,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8609 states. [2019-10-02 10:11:05,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8609 to 8606. [2019-10-02 10:11:05,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8606 states. [2019-10-02 10:11:05,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8606 states to 8606 states and 11175 transitions. [2019-10-02 10:11:05,998 INFO L78 Accepts]: Start accepts. Automaton has 8606 states and 11175 transitions. Word has length 291 [2019-10-02 10:11:05,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:11:05,999 INFO L475 AbstractCegarLoop]: Abstraction has 8606 states and 11175 transitions. [2019-10-02 10:11:05,999 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 10:11:05,999 INFO L276 IsEmpty]: Start isEmpty. Operand 8606 states and 11175 transitions. [2019-10-02 10:11:06,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2019-10-02 10:11:06,011 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:11:06,012 INFO L411 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-10-02 10:11:06,012 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:11:06,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:11:06,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1970910602, now seen corresponding path program 1 times [2019-10-02 10:11:06,012 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:11:06,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:11:06,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:06,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:11:06,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:11:08,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1219 trivial. 0 not checked. [2019-10-02 10:11:08,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:11:08,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 10:11:08,447 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 10:11:08,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 10:11:08,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 10:11:08,448 INFO L87 Difference]: Start difference. First operand 8606 states and 11175 transitions. Second operand 3 states. [2019-10-02 10:11:08,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:11:08,680 INFO L93 Difference]: Finished difference Result 8810 states and 11383 transitions. [2019-10-02 10:11:08,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 10:11:08,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 360 [2019-10-02 10:11:08,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:11:08,735 INFO L225 Difference]: With dead ends: 8810 [2019-10-02 10:11:08,735 INFO L226 Difference]: Without dead ends: 8807 [2019-10-02 10:11:08,743 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 10:11:08,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8807 states. [2019-10-02 10:11:09,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8807 to 8807. [2019-10-02 10:11:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8807 states. [2019-10-02 10:11:09,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8807 states to 8807 states and 11374 transitions. [2019-10-02 10:11:09,075 INFO L78 Accepts]: Start accepts. Automaton has 8807 states and 11374 transitions. Word has length 360 [2019-10-02 10:11:09,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:11:09,076 INFO L475 AbstractCegarLoop]: Abstraction has 8807 states and 11374 transitions. [2019-10-02 10:11:09,076 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 10:11:09,077 INFO L276 IsEmpty]: Start isEmpty. Operand 8807 states and 11374 transitions. [2019-10-02 10:11:09,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2019-10-02 10:11:09,095 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:11:09,095 INFO L411 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-10-02 10:11:09,095 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:11:09,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:11:09,096 INFO L82 PathProgramCache]: Analyzing trace with hash 775476931, now seen corresponding path program 1 times [2019-10-02 10:11:09,096 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:11:09,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:11:09,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:09,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:11:09,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:11:10,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2019-10-02 10:11:10,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:11:10,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 10:11:10,065 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 10:11:10,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 10:11:10,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 10:11:10,066 INFO L87 Difference]: Start difference. First operand 8807 states and 11374 transitions. Second operand 3 states. [2019-10-02 10:11:14,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:11:14,200 INFO L93 Difference]: Finished difference Result 22611 states and 29230 transitions. [2019-10-02 10:11:14,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 10:11:14,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 367 [2019-10-02 10:11:14,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:11:14,271 INFO L225 Difference]: With dead ends: 22611 [2019-10-02 10:11:14,272 INFO L226 Difference]: Without dead ends: 13879 [2019-10-02 10:11:14,304 INFO L640 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 [2019-10-02 10:11:14,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13879 states. [2019-10-02 10:11:14,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13879 to 13876. [2019-10-02 10:11:14,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13876 states. [2019-10-02 10:11:14,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13876 states to 13876 states and 17838 transitions. [2019-10-02 10:11:14,836 INFO L78 Accepts]: Start accepts. Automaton has 13876 states and 17838 transitions. Word has length 367 [2019-10-02 10:11:14,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:11:14,837 INFO L475 AbstractCegarLoop]: Abstraction has 13876 states and 17838 transitions. [2019-10-02 10:11:14,837 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 10:11:14,837 INFO L276 IsEmpty]: Start isEmpty. Operand 13876 states and 17838 transitions. [2019-10-02 10:11:14,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2019-10-02 10:11:14,851 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:11:14,851 INFO L411 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2019-10-02 10:11:14,852 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:11:14,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:11:14,852 INFO L82 PathProgramCache]: Analyzing trace with hash 467918037, now seen corresponding path program 1 times [2019-10-02 10:11:14,852 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:11:14,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:11:14,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:14,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:11:14,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:11:15,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1103 trivial. 0 not checked. [2019-10-02 10:11:15,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:11:15,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 10:11:15,675 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 10:11:15,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 10:11:15,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 10:11:15,676 INFO L87 Difference]: Start difference. First operand 13876 states and 17838 transitions. Second operand 5 states. [2019-10-02 10:11:17,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:11:17,593 INFO L93 Difference]: Finished difference Result 27701 states and 35610 transitions. [2019-10-02 10:11:17,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 10:11:17,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 392 [2019-10-02 10:11:17,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:11:17,667 INFO L225 Difference]: With dead ends: 27701 [2019-10-02 10:11:17,667 INFO L226 Difference]: Without dead ends: 13900 [2019-10-02 10:11:17,722 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-02 10:11:17,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13900 states. [2019-10-02 10:11:18,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13900 to 13852. [2019-10-02 10:11:18,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13852 states. [2019-10-02 10:11:18,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13852 states to 13852 states and 17802 transitions. [2019-10-02 10:11:18,335 INFO L78 Accepts]: Start accepts. Automaton has 13852 states and 17802 transitions. Word has length 392 [2019-10-02 10:11:18,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:11:18,336 INFO L475 AbstractCegarLoop]: Abstraction has 13852 states and 17802 transitions. [2019-10-02 10:11:18,336 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 10:11:18,336 INFO L276 IsEmpty]: Start isEmpty. Operand 13852 states and 17802 transitions. [2019-10-02 10:11:18,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2019-10-02 10:11:18,365 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:11:18,366 INFO L411 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:11:18,366 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:11:18,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:11:18,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1362906495, now seen corresponding path program 1 times [2019-10-02 10:11:18,367 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:11:18,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:11:18,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:18,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:11:18,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:11:19,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1351 trivial. 0 not checked. [2019-10-02 10:11:19,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:11:19,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 10:11:19,229 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 10:11:19,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 10:11:19,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 10:11:19,230 INFO L87 Difference]: Start difference. First operand 13852 states and 17802 transitions. Second operand 3 states. [2019-10-02 10:11:22,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:11:22,935 INFO L93 Difference]: Finished difference Result 32347 states and 41486 transitions. [2019-10-02 10:11:22,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 10:11:22,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 422 [2019-10-02 10:11:22,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:11:23,242 INFO L225 Difference]: With dead ends: 32347 [2019-10-02 10:11:23,242 INFO L226 Difference]: Without dead ends: 18570 [2019-10-02 10:11:23,276 INFO L640 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 [2019-10-02 10:11:23,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18570 states. [2019-10-02 10:11:23,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18570 to 18525. [2019-10-02 10:11:23,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18525 states. [2019-10-02 10:11:23,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18525 states to 18525 states and 23688 transitions. [2019-10-02 10:11:23,892 INFO L78 Accepts]: Start accepts. Automaton has 18525 states and 23688 transitions. Word has length 422 [2019-10-02 10:11:23,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:11:23,893 INFO L475 AbstractCegarLoop]: Abstraction has 18525 states and 23688 transitions. [2019-10-02 10:11:23,893 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 10:11:23,894 INFO L276 IsEmpty]: Start isEmpty. Operand 18525 states and 23688 transitions. [2019-10-02 10:11:23,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2019-10-02 10:11:23,919 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:11:23,920 INFO L411 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:11:23,920 INFO L418 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:11:23,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:11:23,921 INFO L82 PathProgramCache]: Analyzing trace with hash 954349752, now seen corresponding path program 1 times [2019-10-02 10:11:23,921 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:11:23,921 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:11:23,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:23,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:11:23,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:11:25,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1219 trivial. 0 not checked. [2019-10-02 10:11:25,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:11:25,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 10:11:25,135 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 10:11:25,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 10:11:25,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 10:11:25,135 INFO L87 Difference]: Start difference. First operand 18525 states and 23688 transitions. Second operand 5 states. [2019-10-02 10:11:28,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:11:28,787 INFO L93 Difference]: Finished difference Result 37023 states and 47328 transitions. [2019-10-02 10:11:28,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-02 10:11:28,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 398 [2019-10-02 10:11:28,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:11:28,861 INFO L225 Difference]: With dead ends: 37023 [2019-10-02 10:11:28,861 INFO L226 Difference]: Without dead ends: 18525 [2019-10-02 10:11:29,155 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 10:11:29,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18525 states. [2019-10-02 10:11:29,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18525 to 18525. [2019-10-02 10:11:29,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18525 states. [2019-10-02 10:11:29,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18525 states to 18525 states and 23670 transitions. [2019-10-02 10:11:29,775 INFO L78 Accepts]: Start accepts. Automaton has 18525 states and 23670 transitions. Word has length 398 [2019-10-02 10:11:29,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:11:29,776 INFO L475 AbstractCegarLoop]: Abstraction has 18525 states and 23670 transitions. [2019-10-02 10:11:29,776 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 10:11:29,777 INFO L276 IsEmpty]: Start isEmpty. Operand 18525 states and 23670 transitions. [2019-10-02 10:11:29,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2019-10-02 10:11:29,809 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:11:29,809 INFO L411 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:11:29,810 INFO L418 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:11:29,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:11:29,810 INFO L82 PathProgramCache]: Analyzing trace with hash -2019598791, now seen corresponding path program 1 times [2019-10-02 10:11:29,810 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:11:29,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:11:29,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:29,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:11:29,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:11:30,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1351 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2019-10-02 10:11:30,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:11:30,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 10:11:30,977 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 10:11:30,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 10:11:30,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 10:11:30,978 INFO L87 Difference]: Start difference. First operand 18525 states and 23670 transitions. Second operand 3 states. [2019-10-02 10:11:34,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:11:34,879 INFO L93 Difference]: Finished difference Result 42434 states and 54166 transitions. [2019-10-02 10:11:34,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 10:11:34,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 425 [2019-10-02 10:11:34,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:11:34,969 INFO L225 Difference]: With dead ends: 42434 [2019-10-02 10:11:34,970 INFO L226 Difference]: Without dead ends: 23984 [2019-10-02 10:11:35,003 INFO L640 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 [2019-10-02 10:11:35,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23984 states. [2019-10-02 10:11:35,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23984 to 23939. [2019-10-02 10:11:35,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23939 states. [2019-10-02 10:11:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23939 states to 23939 states and 30506 transitions. [2019-10-02 10:11:35,728 INFO L78 Accepts]: Start accepts. Automaton has 23939 states and 30506 transitions. Word has length 425 [2019-10-02 10:11:35,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:11:35,730 INFO L475 AbstractCegarLoop]: Abstraction has 23939 states and 30506 transitions. [2019-10-02 10:11:35,730 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 10:11:35,730 INFO L276 IsEmpty]: Start isEmpty. Operand 23939 states and 30506 transitions. [2019-10-02 10:11:35,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2019-10-02 10:11:35,765 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:11:35,766 INFO L411 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:11:35,767 INFO L418 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:11:35,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:11:35,767 INFO L82 PathProgramCache]: Analyzing trace with hash 532735744, now seen corresponding path program 1 times [2019-10-02 10:11:35,768 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:11:35,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:11:35,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:35,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:11:35,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:11:37,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1219 trivial. 0 not checked. [2019-10-02 10:11:37,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 10:11:37,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 10:11:37,067 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 10:11:37,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 10:11:37,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 10:11:37,073 INFO L87 Difference]: Start difference. First operand 23939 states and 30506 transitions. Second operand 5 states. [2019-10-02 10:11:40,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:11:40,796 INFO L93 Difference]: Finished difference Result 48032 states and 61229 transitions. [2019-10-02 10:11:40,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 10:11:40,804 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 413 [2019-10-02 10:11:40,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:11:40,879 INFO L225 Difference]: With dead ends: 48032 [2019-10-02 10:11:40,879 INFO L226 Difference]: Without dead ends: 24069 [2019-10-02 10:11:40,920 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-02 10:11:40,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24069 states. [2019-10-02 10:11:41,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24069 to 23939. [2019-10-02 10:11:41,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23939 states. [2019-10-02 10:11:41,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23939 states to 23939 states and 30482 transitions. [2019-10-02 10:11:41,536 INFO L78 Accepts]: Start accepts. Automaton has 23939 states and 30482 transitions. Word has length 413 [2019-10-02 10:11:41,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:11:41,536 INFO L475 AbstractCegarLoop]: Abstraction has 23939 states and 30482 transitions. [2019-10-02 10:11:41,537 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 10:11:41,537 INFO L276 IsEmpty]: Start isEmpty. Operand 23939 states and 30482 transitions. [2019-10-02 10:11:41,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2019-10-02 10:11:41,563 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:11:41,564 INFO L411 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:11:41,564 INFO L418 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:11:41,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:11:41,565 INFO L82 PathProgramCache]: Analyzing trace with hash -915271103, now seen corresponding path program 1 times [2019-10-02 10:11:41,565 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:11:41,565 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:11:41,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:41,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:11:41,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:11:47,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1180 trivial. 0 not checked. [2019-10-02 10:11:47,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:11:47,327 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:11:47,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:11:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:11:50,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 9194 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-02 10:11:50,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 10:11:50,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2019-10-02 10:11:50,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 10:11:50,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2019-10-02 10:11:50,371 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-02 10:11:50,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-02 10:11:50,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-02 10:11:50,372 INFO L87 Difference]: Start difference. First operand 23939 states and 30482 transitions. Second operand 10 states. [2019-10-02 10:11:54,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:11:54,775 INFO L93 Difference]: Finished difference Result 47796 states and 60990 transitions. [2019-10-02 10:11:54,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-02 10:11:54,779 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 413 [2019-10-02 10:11:54,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:11:54,886 INFO L225 Difference]: With dead ends: 47796 [2019-10-02 10:11:54,886 INFO L226 Difference]: Without dead ends: 23641 [2019-10-02 10:11:54,964 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2019-10-02 10:11:54,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23641 states. [2019-10-02 10:11:55,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23641 to 23425. [2019-10-02 10:11:55,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23425 states. [2019-10-02 10:11:55,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23425 states to 23425 states and 29930 transitions. [2019-10-02 10:11:55,954 INFO L78 Accepts]: Start accepts. Automaton has 23425 states and 29930 transitions. Word has length 413 [2019-10-02 10:11:55,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:11:55,955 INFO L475 AbstractCegarLoop]: Abstraction has 23425 states and 29930 transitions. [2019-10-02 10:11:55,955 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-02 10:11:55,955 INFO L276 IsEmpty]: Start isEmpty. Operand 23425 states and 29930 transitions. [2019-10-02 10:11:55,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2019-10-02 10:11:55,986 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:11:55,987 INFO L411 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 7, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:11:55,987 INFO L418 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:11:55,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:11:55,988 INFO L82 PathProgramCache]: Analyzing trace with hash 2002669766, now seen corresponding path program 1 times [2019-10-02 10:11:55,988 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:11:55,988 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:11:56,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:11:56,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:11:56,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:12:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:12:02,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2019-10-02 10:12:02,416 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:12:02,416 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:12:03,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:12:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-10-02 10:12:17,504 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-02 10:12:17,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-10-02 10:12:17,505 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 10:12:17,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 10:12:17,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 10:12:17,506 INFO L87 Difference]: Start difference. First operand 23425 states and 29930 transitions. Second operand 6 states. [2019-10-02 10:12:17,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:12:17,979 INFO L93 Difference]: Finished difference Result 46800 states and 59794 transitions. [2019-10-02 10:12:17,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 10:12:17,979 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 441 [2019-10-02 10:12:17,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:12:18,053 INFO L225 Difference]: With dead ends: 46800 [2019-10-02 10:12:18,053 INFO L226 Difference]: Without dead ends: 23423 [2019-10-02 10:12:18,100 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-02 10:12:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23423 states. [2019-10-02 10:12:18,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23423 to 23423. [2019-10-02 10:12:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23423 states. [2019-10-02 10:12:18,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23423 states to 23423 states and 29927 transitions. [2019-10-02 10:12:18,881 INFO L78 Accepts]: Start accepts. Automaton has 23423 states and 29927 transitions. Word has length 441 [2019-10-02 10:12:18,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:12:18,882 INFO L475 AbstractCegarLoop]: Abstraction has 23423 states and 29927 transitions. [2019-10-02 10:12:18,882 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 10:12:18,883 INFO L276 IsEmpty]: Start isEmpty. Operand 23423 states and 29927 transitions. [2019-10-02 10:12:18,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2019-10-02 10:12:18,908 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:12:18,908 INFO L411 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:12:18,909 INFO L418 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:12:18,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:12:18,909 INFO L82 PathProgramCache]: Analyzing trace with hash 506788200, now seen corresponding path program 2 times [2019-10-02 10:12:18,910 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:12:18,910 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:12:18,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:12:18,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:12:18,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:12:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:12:23,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1449 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2019-10-02 10:12:23,624 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:12:23,624 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:12:24,151 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-10-02 10:12:50,480 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-02 10:12:50,480 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2019-10-02 10:12:51,063 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-02 10:12:51,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-10-02 10:12:51,066 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 10:12:51,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 10:12:51,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-02 10:12:51,067 INFO L87 Difference]: Start difference. First operand 23423 states and 29927 transitions. Second operand 7 states. [2019-10-02 10:12:51,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:12:51,544 INFO L93 Difference]: Finished difference Result 46860 states and 59960 transitions. [2019-10-02 10:12:51,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 10:12:51,545 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 442 [2019-10-02 10:12:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:12:51,619 INFO L225 Difference]: With dead ends: 46860 [2019-10-02 10:12:51,619 INFO L226 Difference]: Without dead ends: 23444 [2019-10-02 10:12:51,664 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-02 10:12:51,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23444 states. [2019-10-02 10:12:52,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23444 to 23444. [2019-10-02 10:12:52,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23444 states. [2019-10-02 10:12:52,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23444 states to 23444 states and 29949 transitions. [2019-10-02 10:12:52,319 INFO L78 Accepts]: Start accepts. Automaton has 23444 states and 29949 transitions. Word has length 442 [2019-10-02 10:12:52,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:12:52,320 INFO L475 AbstractCegarLoop]: Abstraction has 23444 states and 29949 transitions. [2019-10-02 10:12:52,320 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 10:12:52,320 INFO L276 IsEmpty]: Start isEmpty. Operand 23444 states and 29949 transitions. [2019-10-02 10:12:52,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2019-10-02 10:12:52,338 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:12:52,338 INFO L411 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 15, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:12:52,339 INFO L418 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:12:52,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:12:52,339 INFO L82 PathProgramCache]: Analyzing trace with hash -34470050, now seen corresponding path program 3 times [2019-10-02 10:12:52,339 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:12:52,340 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:12:52,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:12:52,351 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 10:12:52,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:12:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:12:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 1477 trivial. 0 not checked. [2019-10-02 10:12:56,718 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:12:56,718 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:12:57,142 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-02 10:16:24,643 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2019-10-02 10:16:24,643 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2019-10-02 10:16:25,212 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-02 10:16:25,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-10-02 10:16:25,213 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 10:16:25,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 10:16:25,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 10:16:25,213 INFO L87 Difference]: Start difference. First operand 23444 states and 29949 transitions. Second operand 8 states. [2019-10-02 10:16:25,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:16:25,977 INFO L93 Difference]: Finished difference Result 46902 states and 60004 transitions. [2019-10-02 10:16:25,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-02 10:16:25,977 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 449 [2019-10-02 10:16:25,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:16:26,047 INFO L225 Difference]: With dead ends: 46902 [2019-10-02 10:16:26,048 INFO L226 Difference]: Without dead ends: 23465 [2019-10-02 10:16:26,085 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-02 10:16:26,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23465 states. [2019-10-02 10:16:26,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23465 to 23463. [2019-10-02 10:16:26,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23463 states. [2019-10-02 10:16:26,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23463 states to 23463 states and 29969 transitions. [2019-10-02 10:16:26,881 INFO L78 Accepts]: Start accepts. Automaton has 23463 states and 29969 transitions. Word has length 449 [2019-10-02 10:16:26,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:16:26,883 INFO L475 AbstractCegarLoop]: Abstraction has 23463 states and 29969 transitions. [2019-10-02 10:16:26,883 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 10:16:26,883 INFO L276 IsEmpty]: Start isEmpty. Operand 23463 states and 29969 transitions. [2019-10-02 10:16:26,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2019-10-02 10:16:26,908 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:16:26,908 INFO L411 BasicCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:16:26,908 INFO L418 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:16:26,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:16:26,909 INFO L82 PathProgramCache]: Analyzing trace with hash 432263592, now seen corresponding path program 4 times [2019-10-02 10:16:26,909 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:16:26,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:16:26,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:16:26,929 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 10:16:26,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:16:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:16:31,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 1612 trivial. 0 not checked. [2019-10-02 10:16:31,403 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:16:31,403 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:16:31,862 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-10-02 10:16:45,566 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-10-02 10:16:45,566 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2019-10-02 10:16:46,378 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-02 10:16:46,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-10-02 10:16:46,380 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-02 10:16:46,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-02 10:16:46,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-02 10:16:46,380 INFO L87 Difference]: Start difference. First operand 23463 states and 29969 transitions. Second operand 9 states. [2019-10-02 10:16:46,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:16:46,858 INFO L93 Difference]: Finished difference Result 46942 states and 60046 transitions. [2019-10-02 10:16:46,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-02 10:16:46,859 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 456 [2019-10-02 10:16:46,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:16:46,907 INFO L225 Difference]: With dead ends: 46942 [2019-10-02 10:16:46,908 INFO L226 Difference]: Without dead ends: 23486 [2019-10-02 10:16:46,943 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-02 10:16:46,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23486 states. [2019-10-02 10:16:47,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23486 to 23482. [2019-10-02 10:16:47,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23482 states. [2019-10-02 10:16:47,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23482 states to 23482 states and 29989 transitions. [2019-10-02 10:16:47,646 INFO L78 Accepts]: Start accepts. Automaton has 23482 states and 29989 transitions. Word has length 456 [2019-10-02 10:16:47,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:16:47,647 INFO L475 AbstractCegarLoop]: Abstraction has 23482 states and 29989 transitions. [2019-10-02 10:16:47,647 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-02 10:16:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 23482 states and 29989 transitions. [2019-10-02 10:16:47,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2019-10-02 10:16:47,672 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:16:47,673 INFO L411 BasicCegarLoop]: trace histogram [29, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:16:47,673 INFO L418 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:16:47,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:16:47,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1294470430, now seen corresponding path program 5 times [2019-10-02 10:16:47,674 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:16:47,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:16:47,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:16:47,690 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 10:16:47,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:16:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:16:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1995 backedges. 16 proven. 97 refuted. 0 times theorem prover too weak. 1882 trivial. 0 not checked. [2019-10-02 10:16:52,501 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:16:52,501 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:16:52,974 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2019-10-02 10:16:53,297 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2019-10-02 10:16:53,297 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 10:16:53,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-02 10:16:53,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 10:16:53,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1995 backedges. 658 proven. 1 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2019-10-02 10:16:53,818 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 10:16:53,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2019-10-02 10:16:53,820 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-02 10:16:53,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-02 10:16:53,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-02 10:16:53,821 INFO L87 Difference]: Start difference. First operand 23482 states and 29989 transitions. Second operand 9 states. [2019-10-02 10:16:54,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:16:54,527 INFO L93 Difference]: Finished difference Result 46916 states and 59914 transitions. [2019-10-02 10:16:54,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-02 10:16:54,528 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 463 [2019-10-02 10:16:54,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:16:54,576 INFO L225 Difference]: With dead ends: 46916 [2019-10-02 10:16:54,577 INFO L226 Difference]: Without dead ends: 23482 [2019-10-02 10:16:54,612 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 461 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-10-02 10:16:54,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23482 states. [2019-10-02 10:16:55,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23482 to 23482. [2019-10-02 10:16:55,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23482 states. [2019-10-02 10:16:55,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23482 states to 23482 states and 29988 transitions. [2019-10-02 10:16:55,185 INFO L78 Accepts]: Start accepts. Automaton has 23482 states and 29988 transitions. Word has length 463 [2019-10-02 10:16:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:16:55,185 INFO L475 AbstractCegarLoop]: Abstraction has 23482 states and 29988 transitions. [2019-10-02 10:16:55,185 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-02 10:16:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 23482 states and 29988 transitions. [2019-10-02 10:16:55,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2019-10-02 10:16:55,203 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:16:55,203 INFO L411 BasicCegarLoop]: trace histogram [30, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:16:55,204 INFO L418 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:16:55,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:16:55,204 INFO L82 PathProgramCache]: Analyzing trace with hash -307875832, now seen corresponding path program 6 times [2019-10-02 10:16:55,204 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:16:55,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:16:55,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:16:55,216 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 10:16:55,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:16:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:16:58,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2032 backedges. 21 proven. 129 refuted. 0 times theorem prover too weak. 1882 trivial. 0 not checked. [2019-10-02 10:16:58,908 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:16:58,909 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:16:59,370 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-10-02 10:20:27,255 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2019-10-02 10:20:27,256 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2019-10-02 10:20:28,627 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-02 10:20:28,627 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-10-02 10:20:28,628 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 10:20:28,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 10:20:28,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 10:20:28,629 INFO L87 Difference]: Start difference. First operand 23482 states and 29988 transitions. Second operand 8 states. [2019-10-02 10:20:29,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:20:29,110 INFO L93 Difference]: Finished difference Result 46916 states and 59912 transitions. [2019-10-02 10:20:29,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-02 10:20:29,111 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 464 [2019-10-02 10:20:29,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:20:29,161 INFO L225 Difference]: With dead ends: 46916 [2019-10-02 10:20:29,162 INFO L226 Difference]: Without dead ends: 23482 [2019-10-02 10:20:29,193 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-10-02 10:20:29,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23482 states. [2019-10-02 10:20:29,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23482 to 23482. [2019-10-02 10:20:29,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23482 states. [2019-10-02 10:20:29,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23482 states to 23482 states and 29987 transitions. [2019-10-02 10:20:29,848 INFO L78 Accepts]: Start accepts. Automaton has 23482 states and 29987 transitions. Word has length 464 [2019-10-02 10:20:29,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:20:29,849 INFO L475 AbstractCegarLoop]: Abstraction has 23482 states and 29987 transitions. [2019-10-02 10:20:29,849 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 10:20:29,849 INFO L276 IsEmpty]: Start isEmpty. Operand 23482 states and 29987 transitions. [2019-10-02 10:20:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2019-10-02 10:20:29,867 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:20:29,869 INFO L411 BasicCegarLoop]: trace histogram [31, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:20:29,869 INFO L418 AbstractCegarLoop]: === Iteration 18 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:20:29,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:20:29,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1558997598, now seen corresponding path program 7 times [2019-10-02 10:20:29,871 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:20:29,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:20:29,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:20:29,882 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 10:20:29,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:20:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:20:34,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 26 proven. 162 refuted. 0 times theorem prover too weak. 1882 trivial. 0 not checked. [2019-10-02 10:20:34,153 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:20:34,153 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:20:34,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:20:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-10-02 10:20:48,985 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-02 10:20:48,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-10-02 10:20:48,986 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-02 10:20:48,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-02 10:20:48,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-02 10:20:48,986 INFO L87 Difference]: Start difference. First operand 23482 states and 29987 transitions. Second operand 9 states. [2019-10-02 10:20:49,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:20:49,670 INFO L93 Difference]: Finished difference Result 46914 states and 59908 transitions. [2019-10-02 10:20:49,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 10:20:49,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 465 [2019-10-02 10:20:49,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:20:49,718 INFO L225 Difference]: With dead ends: 46914 [2019-10-02 10:20:49,718 INFO L226 Difference]: Without dead ends: 23480 [2019-10-02 10:20:49,741 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-10-02 10:20:49,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23480 states. [2019-10-02 10:20:50,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23480 to 23480. [2019-10-02 10:20:50,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23480 states. [2019-10-02 10:20:50,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23480 states to 23480 states and 29984 transitions. [2019-10-02 10:20:50,173 INFO L78 Accepts]: Start accepts. Automaton has 23480 states and 29984 transitions. Word has length 465 [2019-10-02 10:20:50,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:20:50,173 INFO L475 AbstractCegarLoop]: Abstraction has 23480 states and 29984 transitions. [2019-10-02 10:20:50,173 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-02 10:20:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 23480 states and 29984 transitions. [2019-10-02 10:20:50,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2019-10-02 10:20:50,190 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:20:50,191 INFO L411 BasicCegarLoop]: trace histogram [32, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:20:50,191 INFO L418 AbstractCegarLoop]: === Iteration 19 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:20:50,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:20:50,192 INFO L82 PathProgramCache]: Analyzing trace with hash -697468216, now seen corresponding path program 8 times [2019-10-02 10:20:50,192 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:20:50,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:20:50,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:20:50,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 10:20:50,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:20:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:20:55,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2109 backedges. 31 proven. 196 refuted. 0 times theorem prover too weak. 1882 trivial. 0 not checked. [2019-10-02 10:20:55,936 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:20:55,936 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:20:56,440 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-10-02 10:21:22,805 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-02 10:21:22,805 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2019-10-02 10:21:23,386 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-10-02 10:21:23,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2019-10-02 10:21:23,387 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-02 10:21:23,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-02 10:21:23,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-02 10:21:23,388 INFO L87 Difference]: Start difference. First operand 23480 states and 29984 transitions. Second operand 10 states. [2019-10-02 10:21:23,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 10:21:23,980 INFO L93 Difference]: Finished difference Result 46967 states and 60060 transitions. [2019-10-02 10:21:23,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-02 10:21:23,980 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 466 [2019-10-02 10:21:23,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 10:21:24,055 INFO L225 Difference]: With dead ends: 46967 [2019-10-02 10:21:24,055 INFO L226 Difference]: Without dead ends: 23501 [2019-10-02 10:21:24,089 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-02 10:21:24,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23501 states. [2019-10-02 10:21:24,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23501 to 23501. [2019-10-02 10:21:24,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23501 states. [2019-10-02 10:21:24,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23501 states to 23501 states and 30006 transitions. [2019-10-02 10:21:24,531 INFO L78 Accepts]: Start accepts. Automaton has 23501 states and 30006 transitions. Word has length 466 [2019-10-02 10:21:24,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 10:21:24,532 INFO L475 AbstractCegarLoop]: Abstraction has 23501 states and 30006 transitions. [2019-10-02 10:21:24,532 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-02 10:21:24,532 INFO L276 IsEmpty]: Start isEmpty. Operand 23501 states and 30006 transitions. [2019-10-02 10:21:24,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2019-10-02 10:21:24,550 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 10:21:24,551 INFO L411 BasicCegarLoop]: trace histogram [33, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 10:21:24,551 INFO L418 AbstractCegarLoop]: === Iteration 20 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 10:21:24,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 10:21:24,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1928431714, now seen corresponding path program 9 times [2019-10-02 10:21:24,552 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 10:21:24,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 10:21:24,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:21:24,563 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 10:21:24,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 10:21:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 10:21:30,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2149 backedges. 36 proven. 231 refuted. 0 times theorem prover too weak. 1882 trivial. 0 not checked. [2019-10-02 10:21:30,456 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 10:21:30,456 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 10:21:30,939 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2