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-f4eb214f-m [2019-10-13 19:10:48,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:10:48,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:10:48,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:10:48,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:10:48,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:10:48,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:10:48,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:10:48,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:10:48,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:10:48,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:10:48,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:10:48,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:10:48,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:10:48,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:10:48,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:10:48,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:10:48,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:10:48,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:10:48,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:10:48,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:10:48,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:10:48,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:10:48,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:10:48,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:10:48,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:10:48,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:10:48,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:10:48,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:10:48,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:10:48,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:10:48,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:10:48,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:10:48,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:10:48,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:10:48,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:10:48,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:10:48,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:10:48,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:10:48,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:10:48,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:10:48,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:10:48,343 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:10:48,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:10:48,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:10:48,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:10:48,344 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:10:48,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:10:48,345 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:10:48,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:10:48,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:10:48,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:10:48,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:10:48,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:10:48,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:10:48,346 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:10:48,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:10:48,347 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:10:48,347 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:10:48,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:10:48,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:10:48,347 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:10:48,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:10:48,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:10:48,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:10:48,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:10:48,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:10:48,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:10:48,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:10:48,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:10:48,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:10:48,625 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:10:48,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:10:48,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:10:48,651 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:10:48,652 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:10:48,653 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 19:10:48,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aba8e36a7/0091ec4564b44363940c7451e3ce3e24/FLAGc1f181c1f [2019-10-13 19:10:49,484 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:10:49,485 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 19:10:49,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aba8e36a7/0091ec4564b44363940c7451e3ce3e24/FLAGc1f181c1f [2019-10-13 19:10:49,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aba8e36a7/0091ec4564b44363940c7451e3ce3e24 [2019-10-13 19:10:49,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:10:49,595 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:10:49,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:10:49,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:10:49,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:10:49,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:49" (1/1) ... [2019-10-13 19:10:49,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56206268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:49, skipping insertion in model container [2019-10-13 19:10:49,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:49" (1/1) ... [2019-10-13 19:10:49,609 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:10:49,716 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:10:50,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:10:50,945 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:10:51,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:10:51,564 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:10:51,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:51 WrapperNode [2019-10-13 19:10:51,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:10:51,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:10:51,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:10:51,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:10:51,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:51" (1/1) ... [2019-10-13 19:10:51,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:51" (1/1) ... [2019-10-13 19:10:51,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:51" (1/1) ... [2019-10-13 19:10:51,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:51" (1/1) ... [2019-10-13 19:10:51,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:51" (1/1) ... [2019-10-13 19:10:51,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:51" (1/1) ... [2019-10-13 19:10:51,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:51" (1/1) ... [2019-10-13 19:10:51,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:10:51,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:10:51,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:10:51,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:10:51,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:10:52,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:10:52,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:10:52,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 19:10:52,036 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 19:10:52,036 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 19:10:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 19:10:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 19:10:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-13 19:10:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-13 19:10:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 19:10:52,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 19:10:52,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 19:10:52,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 19:10:52,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 19:10:52,039 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-13 19:10:52,039 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-13 19:10:52,041 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 19:10:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 19:10:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure enter_4op_mode [2019-10-13 19:10:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_ioctl [2019-10-13 19:10:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_detect [2019-10-13 19:10:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_kill_note [2019-10-13 19:10:52,042 INFO L138 BoogieDeclarations]: Found implementation of procedure store_instr [2019-10-13 19:10:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_set_instr [2019-10-13 19:10:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_vol [2019-10-13 19:10:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure set_voice_volume [2019-10-13 19:10:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_start_note [2019-10-13 19:10:52,043 INFO L138 BoogieDeclarations]: Found implementation of procedure freq_to_fnum [2019-10-13 19:10:52,044 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_command [2019-10-13 19:10:52,044 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_reset [2019-10-13 19:10:52,044 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_open [2019-10-13 19:10:52,044 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_close [2019-10-13 19:10:52,045 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_hw_control [2019-10-13 19:10:52,045 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_load_patch [2019-10-13 19:10:52,045 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_panning [2019-10-13 19:10:52,045 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_volume_method [2019-10-13 19:10:52,045 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_aftertouch [2019-10-13 19:10:52,045 INFO L138 BoogieDeclarations]: Found implementation of procedure bend_pitch [2019-10-13 19:10:52,045 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_controller [2019-10-13 19:10:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_bender [2019-10-13 19:10:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_alloc_voice [2019-10-13 19:10:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_setup_voice [2019-10-13 19:10:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_init [2019-10-13 19:10:52,046 INFO L138 BoogieDeclarations]: Found implementation of procedure init_opl3 [2019-10-13 19:10:52,047 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_opl3 [2019-10-13 19:10:52,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:10:52,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2019-10-13 19:10:52,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_to_user_2 [2019-10-13 19:10:52,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___copy_user_nocache_3 [2019-10-13 19:10:52,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___copy_user_nocache_4 [2019-10-13 19:10:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2019-10-13 19:10:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 19:10:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen [2019-10-13 19:10:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2019-10-13 19:10:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2019-10-13 19:10:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2019-10-13 19:10:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 19:10:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_user_nocache [2019-10-13 19:10:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-13 19:10:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-13 19:10:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 19:10:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 19:10:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_finetune [2019-10-13 19:10:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure conf_printf2 [2019-10-13 19:10:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 19:10:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 19:10:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 19:10:52,051 INFO L138 BoogieDeclarations]: Found implementation of procedure note_to_freq [2019-10-13 19:10:52,051 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 19:10:52,051 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_init [2019-10-13 19:10:52,051 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_synthdev [2019-10-13 19:10:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_unload_synthdev [2019-10-13 19:10:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-13 19:10:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 19:10:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 19:10:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 19:10:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 19:10:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 19:10:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-13 19:10:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:10:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 19:10:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 19:10:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-13 19:10:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 19:10:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 19:10:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 19:10:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-13 19:10:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-13 19:10:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-13 19:10:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 19:10:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2019-10-13 19:10:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 19:10:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 19:10:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 19:10:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 19:10:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 19:10:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:10:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 19:10:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:10:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 19:10:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 19:10:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 19:10:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:10:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 19:10:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 19:10:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-13 19:10:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-13 19:10:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 19:10:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 19:10:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 19:10:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 19:10:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 19:10:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-13 19:10:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-13 19:10:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 19:10:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_to_user_2 [2019-10-13 19:10:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 19:10:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2019-10-13 19:10:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 19:10:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:10:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2019-10-13 19:10:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 19:10:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_user_nocache [2019-10-13 19:10:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___copy_user_nocache_3 [2019-10-13 19:10:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___copy_user_nocache_4 [2019-10-13 19:10:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_init [2019-10-13 19:10:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure note_to_freq [2019-10-13 19:10:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure compute_finetune [2019-10-13 19:10:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure conf_printf2 [2019-10-13 19:10:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure sound_unload_synthdev [2019-10-13 19:10:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_synthdev [2019-10-13 19:10:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure store_instr [2019-10-13 19:10:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure freq_to_fnum [2019-10-13 19:10:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_command [2019-10-13 19:10:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_kill_note [2019-10-13 19:10:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure enter_4op_mode [2019-10-13 19:10:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:10:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:10:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:10:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:10:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_ioctl [2019-10-13 19:10:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_detect [2019-10-13 19:10:52,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-13 19:10:52,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 19:10:52,077 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_set_instr [2019-10-13 19:10:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:10:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure calc_vol [2019-10-13 19:10:52,078 INFO L130 BoogieDeclarations]: Found specification of procedure set_voice_volume [2019-10-13 19:10:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_start_note [2019-10-13 19:10:52,079 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_reset [2019-10-13 19:10:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_open [2019-10-13 19:10:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_close [2019-10-13 19:10:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_hw_control [2019-10-13 19:10:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_load_patch [2019-10-13 19:10:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_panning [2019-10-13 19:10:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_volume_method [2019-10-13 19:10:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_aftertouch [2019-10-13 19:10:52,080 INFO L130 BoogieDeclarations]: Found specification of procedure bend_pitch [2019-10-13 19:10:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_controller [2019-10-13 19:10:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_bender [2019-10-13 19:10:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_alloc_voice [2019-10-13 19:10:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_setup_voice [2019-10-13 19:10:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_init [2019-10-13 19:10:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure init_opl3 [2019-10-13 19:10:52,081 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_opl3 [2019-10-13 19:10:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 19:10:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 19:10:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:10:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-13 19:10:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2019-10-13 19:10:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 19:10:52,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2019-10-13 19:10:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 19:10:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 19:10:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:10:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:10:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:10:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 19:10:52,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:10:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 19:10:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 19:10:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 19:10:52,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 19:10:53,156 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 19:10:59,259 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:10:59,259 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-13 19:10:59,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:59 BoogieIcfgContainer [2019-10-13 19:10:59,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:10:59,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:10:59,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:10:59,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:10:59,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:10:49" (1/3) ... [2019-10-13 19:10:59,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb74ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:59, skipping insertion in model container [2019-10-13 19:10:59,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:51" (2/3) ... [2019-10-13 19:10:59,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb74ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:59, skipping insertion in model container [2019-10-13 19:10:59,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:59" (3/3) ... [2019-10-13 19:10:59,272 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-13 19:10:59,283 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:10:59,296 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:10:59,308 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:10:59,344 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:10:59,345 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:10:59,345 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:10:59,345 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:10:59,345 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:10:59,345 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:10:59,345 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:10:59,345 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:10:59,394 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states. [2019-10-13 19:10:59,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2019-10-13 19:10:59,436 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:10:59,438 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] [2019-10-13 19:10:59,441 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:10:59,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:10:59,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1640497616, now seen corresponding path program 1 times [2019-10-13 19:10:59,455 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:10:59,456 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654981400] [2019-10-13 19:10:59,456 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:59,456 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:10:59,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:00,997 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:11:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 6717 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6717 trivial. 0 not checked. [2019-10-13 19:11:02,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654981400] [2019-10-13 19:11:02,141 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:02,141 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:11:02,142 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290462848] [2019-10-13 19:11:02,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:11:02,147 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:02,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:11:02,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:11:02,164 INFO L87 Difference]: Start difference. First operand 926 states. Second operand 7 states. [2019-10-13 19:11:02,545 WARN L191 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2019-10-13 19:11:03,558 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2019-10-13 19:11:04,240 WARN L191 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-13 19:11:22,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:11:22,259 INFO L93 Difference]: Finished difference Result 2131 states and 3101 transitions. [2019-10-13 19:11:22,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:11:22,261 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 497 [2019-10-13 19:11:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:11:22,308 INFO L225 Difference]: With dead ends: 2131 [2019-10-13 19:11:22,308 INFO L226 Difference]: Without dead ends: 1270 [2019-10-13 19:11:22,321 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:11:22,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2019-10-13 19:11:22,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1066. [2019-10-13 19:11:22,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2019-10-13 19:11:22,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1506 transitions. [2019-10-13 19:11:22,601 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1506 transitions. Word has length 497 [2019-10-13 19:11:22,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:11:22,606 INFO L462 AbstractCegarLoop]: Abstraction has 1066 states and 1506 transitions. [2019-10-13 19:11:22,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:11:22,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1506 transitions. [2019-10-13 19:11:22,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2019-10-13 19:11:22,622 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:11:22,623 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] [2019-10-13 19:11:22,623 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:11:22,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:11:22,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1165895321, now seen corresponding path program 1 times [2019-10-13 19:11:22,624 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:11:22,624 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746792583] [2019-10-13 19:11:22,626 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:22,626 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:11:22,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:11:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,628 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:11:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:11:24,896 INFO L134 CoverageAnalysis]: Checked inductivity of 6719 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6717 trivial. 0 not checked. [2019-10-13 19:11:24,896 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746792583] [2019-10-13 19:11:24,896 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:11:24,897 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:11:24,897 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292571231] [2019-10-13 19:11:24,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:11:24,899 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:11:24,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:11:24,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:11:24,900 INFO L87 Difference]: Start difference. First operand 1066 states and 1506 transitions. Second operand 9 states. [2019-10-13 19:11:25,281 WARN L191 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 199