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-validator-v0.8/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:09:46,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:09:46,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:09:46,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:09:46,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:09:46,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:09:46,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:09:46,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:09:46,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:09:46,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:09:46,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:09:46,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:09:46,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:09:46,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:09:46,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:09:46,696 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:09:46,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:09:46,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:09:46,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:09:46,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:09:46,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:09:46,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:09:46,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:09:46,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:09:46,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:09:46,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:09:46,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:09:46,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:09:46,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:09:46,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:09:46,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:09:46,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:09:46,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:09:46,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:09:46,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:09:46,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:09:46,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:09:46,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:09:46,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:09:46,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:09:46,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:09:46,726 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 [2019-10-14 23:09:46,741 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:09:46,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:09:46,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:09:46,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:09:46,743 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:09:46,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:09:46,743 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:09:46,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:09:46,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:09:46,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:09:46,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:09:46,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:09:46,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:09:46,745 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:09:46,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:09:46,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:09:46,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:09:46,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:09:46,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:09:46,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:09:46,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:09:46,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:09:46,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:09:46,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:09:46,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:09:46,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:09:46,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:09:46,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:09:46,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:09:47,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:09:47,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:09:47,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:09:47,032 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:09:47,032 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:09:47,033 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-14 23:09:47,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00cd2a784/67ed72e2fe7741158a78ffcf5c4ff697/FLAGef29f12c4 [2019-10-14 23:09:47,871 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:09:47,872 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-14 23:09:47,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00cd2a784/67ed72e2fe7741158a78ffcf5c4ff697/FLAGef29f12c4 [2019-10-14 23:09:48,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00cd2a784/67ed72e2fe7741158a78ffcf5c4ff697 [2019-10-14 23:09:48,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:09:48,421 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:09:48,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:09:48,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:09:48,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:09:48,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:09:48" (1/1) ... [2019-10-14 23:09:48,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd7f81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:48, skipping insertion in model container [2019-10-14 23:09:48,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:09:48" (1/1) ... [2019-10-14 23:09:48,439 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:09:48,542 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:09:49,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:09:49,947 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:09:50,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:09:50,563 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:09:50,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:50 WrapperNode [2019-10-14 23:09:50,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:09:50,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:09:50,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:09:50,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:09:50,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:50" (1/1) ... [2019-10-14 23:09:50,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:50" (1/1) ... [2019-10-14 23:09:50,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:50" (1/1) ... [2019-10-14 23:09:50,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:50" (1/1) ... [2019-10-14 23:09:50,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:50" (1/1) ... [2019-10-14 23:09:50,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:50" (1/1) ... [2019-10-14 23:09:50,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:50" (1/1) ... [2019-10-14 23:09:50,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:09:50,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:09:50,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:09:50,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:09:50,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:09:51,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:09:51,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:09:51,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-14 23:09:51,055 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-14 23:09:51,056 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-14 23:09:51,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 23:09:51,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-14 23:09:51,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-14 23:09:51,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-14 23:09:51,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-14 23:09:51,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-14 23:09:51,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-14 23:09:51,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-14 23:09:51,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-14 23:09:51,058 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-14 23:09:51,059 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-14 23:09:51,059 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-14 23:09:51,059 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-14 23:09:51,059 INFO L138 BoogieDeclarations]: Found implementation of procedure enter_4op_mode [2019-10-14 23:09:51,061 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_ioctl [2019-10-14 23:09:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_detect [2019-10-14 23:09:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_kill_note [2019-10-14 23:09:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure store_instr [2019-10-14 23:09:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_set_instr [2019-10-14 23:09:51,062 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_vol [2019-10-14 23:09:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure set_voice_volume [2019-10-14 23:09:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_start_note [2019-10-14 23:09:51,063 INFO L138 BoogieDeclarations]: Found implementation of procedure freq_to_fnum [2019-10-14 23:09:51,064 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_command [2019-10-14 23:09:51,064 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_reset [2019-10-14 23:09:51,064 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_open [2019-10-14 23:09:51,064 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_close [2019-10-14 23:09:51,065 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_hw_control [2019-10-14 23:09:51,065 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_load_patch [2019-10-14 23:09:51,065 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_panning [2019-10-14 23:09:51,065 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_volume_method [2019-10-14 23:09:51,065 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_aftertouch [2019-10-14 23:09:51,066 INFO L138 BoogieDeclarations]: Found implementation of procedure bend_pitch [2019-10-14 23:09:51,066 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_controller [2019-10-14 23:09:51,066 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_bender [2019-10-14 23:09:51,066 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_alloc_voice [2019-10-14 23:09:51,066 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_setup_voice [2019-10-14 23:09:51,066 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_init [2019-10-14 23:09:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure init_opl3 [2019-10-14 23:09:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_opl3 [2019-10-14 23:09:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:09:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2019-10-14 23:09:51,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_to_user_2 [2019-10-14 23:09:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___copy_user_nocache_3 [2019-10-14 23:09:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___copy_user_nocache_4 [2019-10-14 23:09:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2019-10-14 23:09:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-14 23:09:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen [2019-10-14 23:09:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2019-10-14 23:09:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2019-10-14 23:09:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2019-10-14 23:09:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-14 23:09:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_user_nocache [2019-10-14 23:09:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-14 23:09:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-14 23:09:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-14 23:09:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-14 23:09:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_finetune [2019-10-14 23:09:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure conf_printf2 [2019-10-14 23:09:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 23:09:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 23:09:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-14 23:09:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure note_to_freq [2019-10-14 23:09:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-14 23:09:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_init [2019-10-14 23:09:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_synthdev [2019-10-14 23:09:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_unload_synthdev [2019-10-14 23:09:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-14 23:09:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 23:09:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 23:09:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-14 23:09:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-14 23:09:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-14 23:09:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-14 23:09:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:09:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-14 23:09:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-14 23:09:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-14 23:09:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-14 23:09:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-14 23:09:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-14 23:09:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-14 23:09:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-14 23:09:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-14 23:09:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-14 23:09:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2019-10-14 23:09:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 23:09:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 23:09:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-14 23:09:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-14 23:09:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-14 23:09:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:09:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 23:09:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:09:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 23:09:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 23:09:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 23:09:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:09:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-14 23:09:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-14 23:09:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-14 23:09:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-14 23:09:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-14 23:09:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-14 23:09:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-14 23:09:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-14 23:09:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-14 23:09:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-14 23:09:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-14 23:09:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-14 23:09:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_to_user_2 [2019-10-14 23:09:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-14 23:09:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2019-10-14 23:09:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-14 23:09:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:09:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2019-10-14 23:09:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-14 23:09:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_user_nocache [2019-10-14 23:09:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___copy_user_nocache_3 [2019-10-14 23:09:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___copy_user_nocache_4 [2019-10-14 23:09:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_init [2019-10-14 23:09:51,096 INFO L130 BoogieDeclarations]: Found specification of procedure note_to_freq [2019-10-14 23:09:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure compute_finetune [2019-10-14 23:09:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure conf_printf2 [2019-10-14 23:09:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure sound_unload_synthdev [2019-10-14 23:09:51,097 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_synthdev [2019-10-14 23:09:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure store_instr [2019-10-14 23:09:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure freq_to_fnum [2019-10-14 23:09:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_command [2019-10-14 23:09:51,098 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_kill_note [2019-10-14 23:09:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure enter_4op_mode [2019-10-14 23:09:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:09:51,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:09:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:09:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:09:51,104 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_ioctl [2019-10-14 23:09:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_detect [2019-10-14 23:09:51,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-14 23:09:51,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-14 23:09:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_set_instr [2019-10-14 23:09:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:09:51,111 INFO L130 BoogieDeclarations]: Found specification of procedure calc_vol [2019-10-14 23:09:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure set_voice_volume [2019-10-14 23:09:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_start_note [2019-10-14 23:09:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_reset [2019-10-14 23:09:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_open [2019-10-14 23:09:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_close [2019-10-14 23:09:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_hw_control [2019-10-14 23:09:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_load_patch [2019-10-14 23:09:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_panning [2019-10-14 23:09:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_volume_method [2019-10-14 23:09:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_aftertouch [2019-10-14 23:09:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure bend_pitch [2019-10-14 23:09:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_controller [2019-10-14 23:09:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_bender [2019-10-14 23:09:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_alloc_voice [2019-10-14 23:09:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_setup_voice [2019-10-14 23:09:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_init [2019-10-14 23:09:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure init_opl3 [2019-10-14 23:09:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_opl3 [2019-10-14 23:09:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 23:09:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 23:09:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:09:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-14 23:09:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2019-10-14 23:09:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-14 23:09:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2019-10-14 23:09:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-14 23:09:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 23:09:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:09:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:09:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:09:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 23:09:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:09:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-14 23:09:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-14 23:09:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-14 23:09:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-14 23:09:52,275 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-14 23:09:58,297 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:09:58,297 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-14 23:09:58,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:09:58 BoogieIcfgContainer [2019-10-14 23:09:58,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:09:58,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:09:58,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:09:58,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:09:58,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:09:48" (1/3) ... [2019-10-14 23:09:58,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c1bb16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:09:58, skipping insertion in model container [2019-10-14 23:09:58,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:09:50" (2/3) ... [2019-10-14 23:09:58,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c1bb16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:09:58, skipping insertion in model container [2019-10-14 23:09:58,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:09:58" (3/3) ... [2019-10-14 23:09:58,307 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-14 23:09:58,317 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:09:58,331 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:09:58,343 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:09:58,378 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:09:58,378 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:09:58,378 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:09:58,378 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:09:58,379 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:09:58,379 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:09:58,379 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:09:58,379 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:09:58,420 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states. [2019-10-14 23:09:58,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2019-10-14 23:09:58,453 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:09:58,454 INFO L380 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:09:58,457 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:09:58,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:09:58,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1640497616, now seen corresponding path program 1 times [2019-10-14 23:09:58,472 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:09:58,472 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428436707] [2019-10-14 23:09:58,473 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:09:58,473 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:09:58,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:09:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,043 WARN L191 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:10:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:01,041 INFO L134 CoverageAnalysis]: Checked inductivity of 6717 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6717 trivial. 0 not checked. [2019-10-14 23:10:01,042 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428436707] [2019-10-14 23:10:01,042 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:10:01,043 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:10:01,043 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88881030] [2019-10-14 23:10:01,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:10:01,049 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:10:01,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:10:01,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:10:01,066 INFO L87 Difference]: Start difference. First operand 926 states. Second operand 7 states. [2019-10-14 23:10:01,424 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-14 23:10:02,310 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-10-14 23:10:02,980 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:10:20,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:10:20,123 INFO L93 Difference]: Finished difference Result 2131 states and 3101 transitions. [2019-10-14 23:10:20,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:10:20,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 497 [2019-10-14 23:10:20,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:10:20,160 INFO L225 Difference]: With dead ends: 2131 [2019-10-14 23:10:20,160 INFO L226 Difference]: Without dead ends: 1270 [2019-10-14 23:10:20,175 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:10:20,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2019-10-14 23:10:20,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1066. [2019-10-14 23:10:20,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2019-10-14 23:10:20,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1506 transitions. [2019-10-14 23:10:20,461 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1506 transitions. Word has length 497 [2019-10-14 23:10:20,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:10:20,464 INFO L462 AbstractCegarLoop]: Abstraction has 1066 states and 1506 transitions. [2019-10-14 23:10:20,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:10:20,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1506 transitions. [2019-10-14 23:10:20,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2019-10-14 23:10:20,484 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:10:20,484 INFO L380 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 4, 4, 4, 4, 4, 4, 4, 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] [2019-10-14 23:10:20,485 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:10:20,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:10:20,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1165895321, now seen corresponding path program 1 times [2019-10-14 23:10:20,485 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:10:20,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860528401] [2019-10-14 23:10:20,486 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:20,486 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:10:20,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:10:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,350 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:10:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:10:22,793 INFO L134 CoverageAnalysis]: Checked inductivity of 6719 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6717 trivial. 0 not checked. [2019-10-14 23:10:22,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860528401] [2019-10-14 23:10:22,794 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:10:22,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:10:22,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627110990] [2019-10-14 23:10:22,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:10:22,799 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:10:22,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:10:22,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:10:22,802 INFO L87 Difference]: Start difference. First operand 1066 states and 1506 transitions. Second operand 9 states. [2019-10-14 23:10:23,077 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-14 23:10:24,158 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 201