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-f4eb214f-m [2019-10-13 18:15:27,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:15:27,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:15:27,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:15:27,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:15:27,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:15:27,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:15:27,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:15:27,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:15:27,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:15:27,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:15:27,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:15:27,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:15:27,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:15:27,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:15:27,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:15:27,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:15:27,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:15:27,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:15:27,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:15:27,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:15:27,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:15:27,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:15:27,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:15:27,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:15:27,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:15:27,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:15:27,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:15:27,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:15:27,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:15:27,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:15:27,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:15:27,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:15:27,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:15:27,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:15:27,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:15:27,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:15:27,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:15:27,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:15:27,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:15:27,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:15:27,807 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 18:15:27,829 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:15:27,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:15:27,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:15:27,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:15:27,832 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:15:27,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:15:27,833 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:15:27,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:15:27,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:15:27,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:15:27,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:15:27,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:15:27,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:15:27,835 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:15:27,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:15:27,836 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:15:27,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:15:27,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:15:27,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:15:27,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:15:27,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:15:27,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:15:27,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:15:27,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:15:27,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:15:27,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:15:27,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:15:27,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:15:27,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:15:28,164 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:15:28,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:15:28,186 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:15:28,188 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:15:28,188 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:15:28,189 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-commit-tester/m0_sound-oss-opl3-ko--111_1a--42f9f8d.i [2019-10-13 18:15:28,258 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fa619579/1fa1d0d8a30c4e399d48a8d782bcfd73/FLAG8868b1602 [2019-10-13 18:15:29,072 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:15:29,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-commit-tester/m0_sound-oss-opl3-ko--111_1a--42f9f8d.i [2019-10-13 18:15:29,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fa619579/1fa1d0d8a30c4e399d48a8d782bcfd73/FLAG8868b1602 [2019-10-13 18:15:29,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fa619579/1fa1d0d8a30c4e399d48a8d782bcfd73 [2019-10-13 18:15:29,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:15:29,618 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:15:29,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:15:29,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:15:29,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:15:29,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:15:29" (1/1) ... [2019-10-13 18:15:29,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aa79863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:15:29, skipping insertion in model container [2019-10-13 18:15:29,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:15:29" (1/1) ... [2019-10-13 18:15:29,643 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:15:29,764 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:15:31,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:15:31,126 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:15:31,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:15:31,618 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:15:31,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:15:31 WrapperNode [2019-10-13 18:15:31,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:15:31,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:15:31,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:15:31,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:15:31,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:15:31" (1/1) ... [2019-10-13 18:15:31,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:15:31" (1/1) ... [2019-10-13 18:15:31,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:15:31" (1/1) ... [2019-10-13 18:15:31,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:15:31" (1/1) ... [2019-10-13 18:15:32,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:15:31" (1/1) ... [2019-10-13 18:15:32,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:15:31" (1/1) ... [2019-10-13 18:15:32,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:15:31" (1/1) ... [2019-10-13 18:15:32,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:15:32,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:15:32,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:15:32,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:15:32,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:15:31" (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 18:15:32,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:15:32,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:15:32,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 18:15:32,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 18:15:32,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 18:15:32,228 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 18:15:32,228 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 18:15:32,228 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-13 18:15:32,229 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-13 18:15:32,229 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-13 18:15:32,229 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-13 18:15:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure enter_4op_mode [2019-10-13 18:15:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_ioctl [2019-10-13 18:15:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_detect [2019-10-13 18:15:32,231 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_kill_note [2019-10-13 18:15:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure store_instr [2019-10-13 18:15:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_set_instr [2019-10-13 18:15:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_vol [2019-10-13 18:15:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure set_voice_volume [2019-10-13 18:15:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_start_note [2019-10-13 18:15:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure freq_to_fnum [2019-10-13 18:15:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_command [2019-10-13 18:15:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_reset [2019-10-13 18:15:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_open [2019-10-13 18:15:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_close [2019-10-13 18:15:32,235 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_hw_control [2019-10-13 18:15:32,235 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_load_patch [2019-10-13 18:15:32,235 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_panning [2019-10-13 18:15:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_volume_method [2019-10-13 18:15:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_aftertouch [2019-10-13 18:15:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure bend_pitch [2019-10-13 18:15:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_controller [2019-10-13 18:15:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_bender [2019-10-13 18:15:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_alloc_voice [2019-10-13 18:15:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_setup_voice [2019-10-13 18:15:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_init [2019-10-13 18:15:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure init_opl3 [2019-10-13 18:15:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_opl3 [2019-10-13 18:15:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:15:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2019-10-13 18:15:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_to_user_2 [2019-10-13 18:15:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___copy_user_nocache_3 [2019-10-13 18:15:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___copy_user_nocache_4 [2019-10-13 18:15:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2019-10-13 18:15:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 18:15:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 18:15:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 18:15:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen [2019-10-13 18:15:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2019-10-13 18:15:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2019-10-13 18:15:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2019-10-13 18:15:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 18:15:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_user_nocache [2019-10-13 18:15:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-13 18:15:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-13 18:15:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-13 18:15:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-13 18:15:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_finetune [2019-10-13 18:15:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure conf_printf2 [2019-10-13 18:15:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 18:15:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2019-10-13 18:15:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-13 18:15:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 18:15:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-13 18:15:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure note_to_freq [2019-10-13 18:15:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 18:15:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_init [2019-10-13 18:15:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_synthdev [2019-10-13 18:15:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_unload_synthdev [2019-10-13 18:15:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-13 18:15:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 18:15:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 18:15:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 18:15:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-13 18:15:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:15:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 18:15:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 18:15:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-13 18:15:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-13 18:15:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 18:15:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-13 18:15:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-13 18:15:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-13 18:15:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 18:15:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2019-10-13 18:15:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 18:15:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:15:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 18:15:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 18:15:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 18:15:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 18:15:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 18:15:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 18:15:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 18:15:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 18:15:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-13 18:15:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-13 18:15:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-13 18:15:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_to_user_2 [2019-10-13 18:15:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-13 18:15:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2019-10-13 18:15:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-13 18:15:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:15:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2019-10-13 18:15:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-13 18:15:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_user_nocache [2019-10-13 18:15:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___copy_user_nocache_3 [2019-10-13 18:15:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___copy_user_nocache_4 [2019-10-13 18:15:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_init [2019-10-13 18:15:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure note_to_freq [2019-10-13 18:15:32,251 INFO L130 BoogieDeclarations]: Found specification of procedure compute_finetune [2019-10-13 18:15:32,251 INFO L130 BoogieDeclarations]: Found specification of procedure conf_printf2 [2019-10-13 18:15:32,252 INFO L130 BoogieDeclarations]: Found specification of procedure sound_unload_synthdev [2019-10-13 18:15:32,252 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_synthdev [2019-10-13 18:15:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure store_instr [2019-10-13 18:15:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure freq_to_fnum [2019-10-13 18:15:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_command [2019-10-13 18:15:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_kill_note [2019-10-13 18:15:32,254 INFO L130 BoogieDeclarations]: Found specification of procedure enter_4op_mode [2019-10-13 18:15:32,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 18:15:32,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 18:15:32,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:15:32,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:15:32,256 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_ioctl [2019-10-13 18:15:32,257 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_detect [2019-10-13 18:15:32,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-13 18:15:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 18:15:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_set_instr [2019-10-13 18:15:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:15:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure calc_vol [2019-10-13 18:15:32,258 INFO L130 BoogieDeclarations]: Found specification of procedure set_voice_volume [2019-10-13 18:15:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_start_note [2019-10-13 18:15:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_reset [2019-10-13 18:15:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_open [2019-10-13 18:15:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_close [2019-10-13 18:15:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_hw_control [2019-10-13 18:15:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_load_patch [2019-10-13 18:15:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_panning [2019-10-13 18:15:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_volume_method [2019-10-13 18:15:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_aftertouch [2019-10-13 18:15:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure bend_pitch [2019-10-13 18:15:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_controller [2019-10-13 18:15:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_bender [2019-10-13 18:15:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_alloc_voice [2019-10-13 18:15:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_setup_voice [2019-10-13 18:15:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_init [2019-10-13 18:15:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure init_opl3 [2019-10-13 18:15:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_opl3 [2019-10-13 18:15:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 18:15:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2019-10-13 18:15:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 18:15:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-13 18:15:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:15:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-13 18:15:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2019-10-13 18:15:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 18:15:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 18:15:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2019-10-13 18:15:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 18:15:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 18:15:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 18:15:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 18:15:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:15:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:15:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 18:15:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 18:15:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:15:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 18:15:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 18:15:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 18:15:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 18:15:33,499 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 18:15:37,853 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:15:37,853 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-13 18:15:37,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:15:37 BoogieIcfgContainer [2019-10-13 18:15:37,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:15:37,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:15:37,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:15:37,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:15:37,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:15:29" (1/3) ... [2019-10-13 18:15:37,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b496a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:15:37, skipping insertion in model container [2019-10-13 18:15:37,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:15:31" (2/3) ... [2019-10-13 18:15:37,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b496a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:15:37, skipping insertion in model container [2019-10-13 18:15:37,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:15:37" (3/3) ... [2019-10-13 18:15:37,864 INFO L109 eAbstractionObserver]: Analyzing ICFG m0_sound-oss-opl3-ko--111_1a--42f9f8d.i [2019-10-13 18:15:37,874 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:15:37,884 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:15:37,898 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:15:37,932 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:15:37,932 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:15:37,932 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:15:37,932 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:15:37,932 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:15:37,933 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:15:37,933 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:15:37,933 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:15:37,977 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2019-10-13 18:15:37,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-13 18:15:37,995 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:15:37,997 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] [2019-10-13 18:15:37,999 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:15:38,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:15:38,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1852841462, now seen corresponding path program 1 times [2019-10-13 18:15:38,016 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:15:38,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631135332] [2019-10-13 18:15:38,017 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:15:38,017 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:15:38,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:15:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:39,425 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 18:15:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:39,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 18:15:39,673 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631135332] [2019-10-13 18:15:39,674 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:15:39,674 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 18:15:39,675 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872181821] [2019-10-13 18:15:39,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 18:15:39,680 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:15:39,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 18:15:39,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 18:15:39,697 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 8 states. [2019-10-13 18:15:40,077 WARN L191 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 18:15:47,266 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 18:15:47,960 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 18:15:48,721 WARN L191 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 18:15:49,491 WARN L191 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 18:15:51,985 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 18:15:57,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:15:57,247 INFO L93 Difference]: Finished difference Result 1625 states and 2364 transitions. [2019-10-13 18:15:57,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 18:15:57,250 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-10-13 18:15:57,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:15:57,277 INFO L225 Difference]: With dead ends: 1625 [2019-10-13 18:15:57,277 INFO L226 Difference]: Without dead ends: 873 [2019-10-13 18:15:57,290 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-13 18:15:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2019-10-13 18:15:57,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 740. [2019-10-13 18:15:57,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2019-10-13 18:15:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1043 transitions. [2019-10-13 18:15:57,520 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1043 transitions. Word has length 39 [2019-10-13 18:15:57,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:15:57,521 INFO L462 AbstractCegarLoop]: Abstraction has 740 states and 1043 transitions. [2019-10-13 18:15:57,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 18:15:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1043 transitions. [2019-10-13 18:15:57,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 18:15:57,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:15:57,535 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] [2019-10-13 18:15:57,536 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:15:57,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:15:57,536 INFO L82 PathProgramCache]: Analyzing trace with hash 37510773, now seen corresponding path program 1 times [2019-10-13 18:15:57,536 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:15:57,537 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080175083] [2019-10-13 18:15:57,537 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:15:57,537 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:15:57,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:15:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:58,456 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-13 18:15:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:15:58,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 18:15:58,672 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080175083] [2019-10-13 18:15:58,673 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:15:58,673 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 18:15:58,673 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959101059] [2019-10-13 18:15:58,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 18:15:58,679 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:15:58,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 18:15:58,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 18:15:58,680 INFO L87 Difference]: Start difference. First operand 740 states and 1043 transitions. Second operand 10 states. [2019-10-13 18:15:58,993 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-13 18:16:06,407 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188