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-commit-tester/m0_sound-oss-opl3-ko--111_1a--42f9f8d.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 22:14:24,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 22:14:24,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 22:14:24,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 22:14:24,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 22:14:24,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 22:14:24,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 22:14:24,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 22:14:24,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 22:14:24,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 22:14:24,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 22:14:24,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 22:14:24,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 22:14:24,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 22:14:24,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 22:14:24,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 22:14:24,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 22:14:24,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 22:14:24,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 22:14:24,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 22:14:24,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 22:14:24,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 22:14:24,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 22:14:24,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 22:14:24,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 22:14:24,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 22:14:24,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 22:14:24,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 22:14:24,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 22:14:24,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 22:14:24,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 22:14:24,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 22:14:24,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 22:14:24,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 22:14:24,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 22:14:24,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 22:14:24,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 22:14:24,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 22:14:24,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 22:14:24,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 22:14:24,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 22:14:24,473 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 22:14:24,501 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 22:14:24,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 22:14:24,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 22:14:24,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 22:14:24,503 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 22:14:24,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 22:14:24,504 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 22:14:24,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 22:14:24,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 22:14:24,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 22:14:24,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 22:14:24,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 22:14:24,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 22:14:24,505 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 22:14:24,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 22:14:24,505 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 22:14:24,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 22:14:24,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 22:14:24,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 22:14:24,506 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 22:14:24,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 22:14:24,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 22:14:24,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 22:14:24,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 22:14:24,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 22:14:24,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 22:14:24,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 22:14:24,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 22:14:24,508 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 22:14:24,824 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 22:14:24,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 22:14:24,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 22:14:24,852 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 22:14:24,853 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 22:14:24,854 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_sound-oss-opl3-ko--111_1a--42f9f8d.i [2019-10-14 22:14:24,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/930b508d0/91a85ae6dbf64b7face4933a5aa8810c/FLAGef3e16ae4 [2019-10-14 22:14:25,718 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 22:14:25,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_sound-oss-opl3-ko--111_1a--42f9f8d.i [2019-10-14 22:14:25,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/930b508d0/91a85ae6dbf64b7face4933a5aa8810c/FLAGef3e16ae4 [2019-10-14 22:14:26,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/930b508d0/91a85ae6dbf64b7face4933a5aa8810c [2019-10-14 22:14:26,268 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 22:14:26,269 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 22:14:26,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 22:14:26,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 22:14:26,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 22:14:26,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:14:26" (1/1) ... [2019-10-14 22:14:26,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5778c146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:26, skipping insertion in model container [2019-10-14 22:14:26,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:14:26" (1/1) ... [2019-10-14 22:14:26,289 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 22:14:26,440 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 22:14:27,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:14:27,707 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 22:14:28,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:14:28,270 INFO L192 MainTranslator]: Completed translation [2019-10-14 22:14:28,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:28 WrapperNode [2019-10-14 22:14:28,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 22:14:28,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 22:14:28,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 22:14:28,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 22:14:28,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:28" (1/1) ... [2019-10-14 22:14:28,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:28" (1/1) ... [2019-10-14 22:14:28,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:28" (1/1) ... [2019-10-14 22:14:28,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:28" (1/1) ... [2019-10-14 22:14:28,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:28" (1/1) ... [2019-10-14 22:14:28,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:28" (1/1) ... [2019-10-14 22:14:28,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:28" (1/1) ... [2019-10-14 22:14:28,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 22:14:28,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 22:14:28,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 22:14:28,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 22:14:28,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:28" (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 22:14:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 22:14:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 22:14:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-14 22:14:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 22:14:28,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-14 22:14:28,665 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-14 22:14:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-14 22:14:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-14 22:14:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-14 22:14:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-14 22:14:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-14 22:14:28,667 INFO L138 BoogieDeclarations]: Found implementation of procedure enter_4op_mode [2019-10-14 22:14:28,668 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_ioctl [2019-10-14 22:14:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_detect [2019-10-14 22:14:28,670 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_kill_note [2019-10-14 22:14:28,671 INFO L138 BoogieDeclarations]: Found implementation of procedure store_instr [2019-10-14 22:14:28,675 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_set_instr [2019-10-14 22:14:28,675 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_vol [2019-10-14 22:14:28,675 INFO L138 BoogieDeclarations]: Found implementation of procedure set_voice_volume [2019-10-14 22:14:28,676 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_start_note [2019-10-14 22:14:28,676 INFO L138 BoogieDeclarations]: Found implementation of procedure freq_to_fnum [2019-10-14 22:14:28,676 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_command [2019-10-14 22:14:28,677 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_reset [2019-10-14 22:14:28,677 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_open [2019-10-14 22:14:28,677 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_close [2019-10-14 22:14:28,677 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_hw_control [2019-10-14 22:14:28,677 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_load_patch [2019-10-14 22:14:28,677 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_panning [2019-10-14 22:14:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_volume_method [2019-10-14 22:14:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_aftertouch [2019-10-14 22:14:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure bend_pitch [2019-10-14 22:14:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_controller [2019-10-14 22:14:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_bender [2019-10-14 22:14:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_alloc_voice [2019-10-14 22:14:28,679 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_setup_voice [2019-10-14 22:14:28,679 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_init [2019-10-14 22:14:28,679 INFO L138 BoogieDeclarations]: Found implementation of procedure init_opl3 [2019-10-14 22:14:28,679 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_opl3 [2019-10-14 22:14:28,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 22:14:28,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2019-10-14 22:14:28,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_to_user_2 [2019-10-14 22:14:28,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___copy_user_nocache_3 [2019-10-14 22:14:28,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___copy_user_nocache_4 [2019-10-14 22:14:28,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2019-10-14 22:14:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-14 22:14:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-14 22:14:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-14 22:14:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen [2019-10-14 22:14:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2019-10-14 22:14:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2019-10-14 22:14:28,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2019-10-14 22:14:28,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-14 22:14:28,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_user_nocache [2019-10-14 22:14:28,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-14 22:14:28,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-14 22:14:28,682 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-14 22:14:28,682 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-14 22:14:28,682 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_finetune [2019-10-14 22:14:28,683 INFO L138 BoogieDeclarations]: Found implementation of procedure conf_printf2 [2019-10-14 22:14:28,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 22:14:28,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-14 22:14:28,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-14 22:14:28,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 22:14:28,684 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-14 22:14:28,684 INFO L138 BoogieDeclarations]: Found implementation of procedure note_to_freq [2019-10-14 22:14:28,684 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-14 22:14:28,684 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_init [2019-10-14 22:14:28,685 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_synthdev [2019-10-14 22:14:28,685 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_unload_synthdev [2019-10-14 22:14:28,685 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-14 22:14:28,685 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 22:14:28,686 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 22:14:28,686 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-14 22:14:28,686 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-14 22:14:28,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 22:14:28,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-14 22:14:28,687 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-14 22:14:28,687 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-14 22:14:28,687 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-14 22:14:28,688 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-14 22:14:28,688 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-14 22:14:28,688 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-14 22:14:28,689 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-14 22:14:28,689 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-14 22:14:28,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2019-10-14 22:14:28,689 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 22:14:28,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 22:14:28,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 22:14:28,690 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 22:14:28,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-14 22:14:28,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 22:14:28,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 22:14:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-14 22:14:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-14 22:14:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-14 22:14:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-14 22:14:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-14 22:14:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-14 22:14:28,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_to_user_2 [2019-10-14 22:14:28,693 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-14 22:14:28,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2019-10-14 22:14:28,693 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-14 22:14:28,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 22:14:28,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2019-10-14 22:14:28,693 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-14 22:14:28,693 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_user_nocache [2019-10-14 22:14:28,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___copy_user_nocache_3 [2019-10-14 22:14:28,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___copy_user_nocache_4 [2019-10-14 22:14:28,694 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_init [2019-10-14 22:14:28,694 INFO L130 BoogieDeclarations]: Found specification of procedure note_to_freq [2019-10-14 22:14:28,695 INFO L130 BoogieDeclarations]: Found specification of procedure compute_finetune [2019-10-14 22:14:28,695 INFO L130 BoogieDeclarations]: Found specification of procedure conf_printf2 [2019-10-14 22:14:28,695 INFO L130 BoogieDeclarations]: Found specification of procedure sound_unload_synthdev [2019-10-14 22:14:28,695 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_synthdev [2019-10-14 22:14:28,695 INFO L130 BoogieDeclarations]: Found specification of procedure store_instr [2019-10-14 22:14:28,695 INFO L130 BoogieDeclarations]: Found specification of procedure freq_to_fnum [2019-10-14 22:14:28,696 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_command [2019-10-14 22:14:28,696 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_kill_note [2019-10-14 22:14:28,696 INFO L130 BoogieDeclarations]: Found specification of procedure enter_4op_mode [2019-10-14 22:14:28,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 22:14:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 22:14:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 22:14:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 22:14:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_ioctl [2019-10-14 22:14:28,698 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_detect [2019-10-14 22:14:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-14 22:14:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-14 22:14:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_set_instr [2019-10-14 22:14:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 22:14:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure calc_vol [2019-10-14 22:14:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure set_voice_volume [2019-10-14 22:14:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_start_note [2019-10-14 22:14:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_reset [2019-10-14 22:14:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_open [2019-10-14 22:14:28,700 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_close [2019-10-14 22:14:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_hw_control [2019-10-14 22:14:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_load_patch [2019-10-14 22:14:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_panning [2019-10-14 22:14:28,701 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_volume_method [2019-10-14 22:14:28,702 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_aftertouch [2019-10-14 22:14:28,705 INFO L130 BoogieDeclarations]: Found specification of procedure bend_pitch [2019-10-14 22:14:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_controller [2019-10-14 22:14:28,706 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_bender [2019-10-14 22:14:28,707 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_alloc_voice [2019-10-14 22:14:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_setup_voice [2019-10-14 22:14:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_init [2019-10-14 22:14:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure init_opl3 [2019-10-14 22:14:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_opl3 [2019-10-14 22:14:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 22:14:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-14 22:14:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 22:14:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-14 22:14:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 22:14:28,715 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-14 22:14:28,715 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2019-10-14 22:14:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-14 22:14:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-14 22:14:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2019-10-14 22:14:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-14 22:14:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 22:14:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 22:14:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 22:14:28,716 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 22:14:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 22:14:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 22:14:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 22:14:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 22:14:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-14 22:14:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-14 22:14:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-14 22:14:28,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-14 22:14:29,895 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-14 22:14:34,530 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 22:14:34,531 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-14 22:14:34,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:14:34 BoogieIcfgContainer [2019-10-14 22:14:34,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 22:14:34,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 22:14:34,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 22:14:34,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 22:14:34,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:14:26" (1/3) ... [2019-10-14 22:14:34,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7733fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:14:34, skipping insertion in model container [2019-10-14 22:14:34,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:14:28" (2/3) ... [2019-10-14 22:14:34,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7733fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:14:34, skipping insertion in model container [2019-10-14 22:14:34,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:14:34" (3/3) ... [2019-10-14 22:14:34,541 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_sound-oss-opl3-ko--111_1a--42f9f8d.i [2019-10-14 22:14:34,551 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 22:14:34,560 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 22:14:34,573 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 22:14:34,607 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 22:14:34,608 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 22:14:34,608 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 22:14:34,608 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 22:14:34,608 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 22:14:34,608 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 22:14:34,609 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 22:14:34,609 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 22:14:34,649 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2019-10-14 22:14:34,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-14 22:14:34,662 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:14:34,663 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 22:14:34,665 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:14:34,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:14:34,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1852841462, now seen corresponding path program 1 times [2019-10-14 22:14:34,681 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:14:34,681 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580119274] [2019-10-14 22:14:34,681 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:14:34,681 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:14:34,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:14:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:36,138 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-14 22:14:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:36,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-14 22:14:36,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580119274] [2019-10-14 22:14:36,403 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:14:36,403 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 22:14:36,404 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506771393] [2019-10-14 22:14:36,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 22:14:36,409 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:14:36,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 22:14:36,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-14 22:14:36,427 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 8 states. [2019-10-14 22:14:36,780 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 22:14:43,372 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 22:14:43,988 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 22:14:44,671 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 22:14:45,362 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 22:14:47,807 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 22:14:52,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:14:52,749 INFO L93 Difference]: Finished difference Result 1625 states and 2364 transitions. [2019-10-14 22:14:52,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 22:14:52,751 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-10-14 22:14:52,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:14:52,798 INFO L225 Difference]: With dead ends: 1625 [2019-10-14 22:14:52,798 INFO L226 Difference]: Without dead ends: 873 [2019-10-14 22:14:52,814 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-14 22:14:52,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2019-10-14 22:14:53,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 740. [2019-10-14 22:14:53,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2019-10-14 22:14:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1043 transitions. [2019-10-14 22:14:53,069 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1043 transitions. Word has length 39 [2019-10-14 22:14:53,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:14:53,070 INFO L462 AbstractCegarLoop]: Abstraction has 740 states and 1043 transitions. [2019-10-14 22:14:53,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 22:14:53,070 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1043 transitions. [2019-10-14 22:14:53,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-14 22:14:53,086 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:14:53,086 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-14 22:14:53,087 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:14:53,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:14:53,087 INFO L82 PathProgramCache]: Analyzing trace with hash 37510773, now seen corresponding path program 1 times [2019-10-14 22:14:53,087 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:14:53,088 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159224612] [2019-10-14 22:14:53,088 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:14:53,088 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:14:53,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:14:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:53,803 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-14 22:14:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:14:54,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-14 22:14:54,003 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159224612] [2019-10-14 22:14:54,004 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:14:54,004 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 22:14:54,004 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816454722] [2019-10-14 22:14:54,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 22:14:54,006 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:14:54,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 22:14:54,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-14 22:14:54,007 INFO L87 Difference]: Start difference. First operand 740 states and 1043 transitions. Second operand 10 states. [2019-10-14 22:14:54,380 WARN L191 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 22:15:01,993 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 22:15:02,580 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 187