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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -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 0.1.24-36ac518-m [2019-10-07 13:00:26,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:00:26,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:00:26,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:00:26,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:00:26,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:00:26,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:00:26,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:00:26,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:00:26,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:00:26,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:00:26,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:00:26,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:00:26,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:00:26,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:00:26,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:00:26,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:00:26,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:00:26,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:00:26,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:00:26,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:00:26,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:00:26,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:00:26,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:00:26,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:00:26,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:00:26,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:00:26,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:00:26,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:00:26,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:00:26,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:00:26,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:00:26,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:00:26,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:00:26,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:00:26,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:00:26,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:00:26,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:00:26,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:00:26,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:00:26,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:00:26,205 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 [2019-10-07 13:00:26,231 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:00:26,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:00:26,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:00:26,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:00:26,233 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:00:26,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:00:26,234 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:00:26,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:00:26,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:00:26,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:00:26,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:00:26,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:00:26,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:00:26,236 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:00:26,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:00:26,237 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:00:26,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:00:26,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:00:26,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:00:26,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:00:26,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:00:26,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:00:26,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:00:26,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:00:26,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:00:26,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:00:26,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:00:26,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:00:26,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 13:00:26,502 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:00:26,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:00:26,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:00:26,520 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:00:26,520 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:00:26,521 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-07 13:00:26,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746046aa4/f92c3958d6204823aacc3a0a70ab2af1/FLAG12b495f30 [2019-10-07 13:00:27,301 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:00:27,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-07 13:00:27,332 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746046aa4/f92c3958d6204823aacc3a0a70ab2af1/FLAG12b495f30 [2019-10-07 13:00:27,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/746046aa4/f92c3958d6204823aacc3a0a70ab2af1 [2019-10-07 13:00:27,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:00:27,411 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:00:27,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:00:27,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:00:27,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:00:27,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:00:27" (1/1) ... [2019-10-07 13:00:27,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36bf64fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:27, skipping insertion in model container [2019-10-07 13:00:27,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:00:27" (1/1) ... [2019-10-07 13:00:27,427 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:00:27,541 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:00:28,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:00:29,009 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:00:29,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:00:29,403 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:00:29,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:29 WrapperNode [2019-10-07 13:00:29,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:00:29,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:00:29,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:00:29,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:00:29,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:29" (1/1) ... [2019-10-07 13:00:29,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:29" (1/1) ... [2019-10-07 13:00:29,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:29" (1/1) ... [2019-10-07 13:00:29,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:29" (1/1) ... [2019-10-07 13:00:29,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:29" (1/1) ... [2019-10-07 13:00:29,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:29" (1/1) ... [2019-10-07 13:00:29,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:29" (1/1) ... [2019-10-07 13:00:29,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:00:29,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:00:29,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:00:29,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:00:29,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:29" (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 [2019-10-07 13:00:29,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:00:29,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:00:29,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 13:00:29,956 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 13:00:29,957 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-07 13:00:29,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 13:00:29,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 13:00:29,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2019-10-07 13:00:29,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2019-10-07 13:00:29,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 13:00:29,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 13:00:29,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 13:00:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 13:00:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 13:00:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2019-10-07 13:00:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2019-10-07 13:00:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-07 13:00:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-07 13:00:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure enter_4op_mode [2019-10-07 13:00:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_ioctl [2019-10-07 13:00:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_detect [2019-10-07 13:00:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_kill_note [2019-10-07 13:00:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure store_instr [2019-10-07 13:00:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_set_instr [2019-10-07 13:00:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_vol [2019-10-07 13:00:29,966 INFO L138 BoogieDeclarations]: Found implementation of procedure set_voice_volume [2019-10-07 13:00:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_start_note [2019-10-07 13:00:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure freq_to_fnum [2019-10-07 13:00:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_command [2019-10-07 13:00:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_reset [2019-10-07 13:00:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_open [2019-10-07 13:00:29,967 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_close [2019-10-07 13:00:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_hw_control [2019-10-07 13:00:29,968 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_load_patch [2019-10-07 13:00:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_panning [2019-10-07 13:00:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_volume_method [2019-10-07 13:00:29,969 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_aftertouch [2019-10-07 13:00:29,971 INFO L138 BoogieDeclarations]: Found implementation of procedure bend_pitch [2019-10-07 13:00:29,971 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_controller [2019-10-07 13:00:29,971 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_bender [2019-10-07 13:00:29,971 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_alloc_voice [2019-10-07 13:00:29,971 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_setup_voice [2019-10-07 13:00:29,971 INFO L138 BoogieDeclarations]: Found implementation of procedure opl3_init [2019-10-07 13:00:29,971 INFO L138 BoogieDeclarations]: Found implementation of procedure init_opl3 [2019-10-07 13:00:29,971 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_opl3 [2019-10-07 13:00:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:00:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2019-10-07 13:00:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_to_user_2 [2019-10-07 13:00:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___copy_user_nocache_3 [2019-10-07 13:00:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___copy_user_nocache_4 [2019-10-07 13:00:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2019-10-07 13:00:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-07 13:00:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen [2019-10-07 13:00:29,972 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2019-10-07 13:00:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2019-10-07 13:00:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2019-10-07 13:00:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-07 13:00:29,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_user_nocache [2019-10-07 13:00:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2019-10-07 13:00:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2019-10-07 13:00:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-07 13:00:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-07 13:00:29,975 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_finetune [2019-10-07 13:00:29,975 INFO L138 BoogieDeclarations]: Found implementation of procedure conf_printf2 [2019-10-07 13:00:29,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 13:00:29,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 13:00:29,975 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-07 13:00:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure note_to_freq [2019-10-07 13:00:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-07 13:00:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure sequencer_init [2019-10-07 13:00:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_alloc_synthdev [2019-10-07 13:00:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure sound_unload_synthdev [2019-10-07 13:00:29,976 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2019-10-07 13:00:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 13:00:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 13:00:29,978 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 13:00:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 13:00:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-07 13:00:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2019-10-07 13:00:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:00:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 13:00:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-07 13:00:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2019-10-07 13:00:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-07 13:00:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-07 13:00:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 13:00:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2019-10-07 13:00:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2019-10-07 13:00:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2019-10-07 13:00:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-07 13:00:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2019-10-07 13:00:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 13:00:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 13:00:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 13:00:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 13:00:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-07 13:00:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 13:00:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 13:00:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 13:00:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 13:00:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 13:00:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 13:00:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 13:00:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 13:00:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 13:00:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2019-10-07 13:00:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2019-10-07 13:00:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 13:00:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 13:00:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 13:00:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 13:00:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 13:00:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2019-10-07 13:00:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2019-10-07 13:00:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-07 13:00:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_to_user_2 [2019-10-07 13:00:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-07 13:00:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2019-10-07 13:00:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-07 13:00:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 13:00:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2019-10-07 13:00:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-07 13:00:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_user_nocache [2019-10-07 13:00:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___copy_user_nocache_3 [2019-10-07 13:00:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___copy_user_nocache_4 [2019-10-07 13:00:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure sequencer_init [2019-10-07 13:00:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure note_to_freq [2019-10-07 13:00:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure compute_finetune [2019-10-07 13:00:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure conf_printf2 [2019-10-07 13:00:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure sound_unload_synthdev [2019-10-07 13:00:29,995 INFO L130 BoogieDeclarations]: Found specification of procedure sound_alloc_synthdev [2019-10-07 13:00:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure store_instr [2019-10-07 13:00:29,996 INFO L130 BoogieDeclarations]: Found specification of procedure freq_to_fnum [2019-10-07 13:00:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_command [2019-10-07 13:00:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_kill_note [2019-10-07 13:00:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure enter_4op_mode [2019-10-07 13:00:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 13:00:30,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 13:00:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 13:00:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 13:00:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_ioctl [2019-10-07 13:00:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_detect [2019-10-07 13:00:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2019-10-07 13:00:30,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-07 13:00:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_set_instr [2019-10-07 13:00:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 13:00:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure calc_vol [2019-10-07 13:00:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure set_voice_volume [2019-10-07 13:00:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_start_note [2019-10-07 13:00:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_reset [2019-10-07 13:00:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_open [2019-10-07 13:00:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_close [2019-10-07 13:00:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_hw_control [2019-10-07 13:00:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_load_patch [2019-10-07 13:00:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_panning [2019-10-07 13:00:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_volume_method [2019-10-07 13:00:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_aftertouch [2019-10-07 13:00:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure bend_pitch [2019-10-07 13:00:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_controller [2019-10-07 13:00:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_bender [2019-10-07 13:00:30,018 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_alloc_voice [2019-10-07 13:00:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_setup_voice [2019-10-07 13:00:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure opl3_init [2019-10-07 13:00:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure init_opl3 [2019-10-07 13:00:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_opl3 [2019-10-07 13:00:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 13:00:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 13:00:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:00:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-07 13:00:30,020 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2019-10-07 13:00:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-07 13:00:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2019-10-07 13:00:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-07 13:00:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 13:00:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 13:00:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:00:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 13:00:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 13:00:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:00:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-07 13:00:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-07 13:00:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-07 13:00:30,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-07 13:00:31,128 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 13:00:44,276 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:00:44,276 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-07 13:00:44,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:00:44 BoogieIcfgContainer [2019-10-07 13:00:44,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:00:44,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:00:44,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:00:44,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:00:44,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:00:27" (1/3) ... [2019-10-07 13:00:44,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452a9af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:00:44, skipping insertion in model container [2019-10-07 13:00:44,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:00:29" (2/3) ... [2019-10-07 13:00:44,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452a9af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:00:44, skipping insertion in model container [2019-10-07 13:00:44,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:00:44" (3/3) ... [2019-10-07 13:00:44,288 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-42f9f8d-1-111_1a-sound--oss--opl3.ko-entry_point_ldv-val-v0.8.cil.out.i [2019-10-07 13:00:44,298 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:00:44,312 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:00:44,324 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:00:44,362 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:00:44,362 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:00:44,362 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:00:44,362 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:00:44,362 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:00:44,363 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:00:44,363 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:00:44,363 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:00:44,408 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states. [2019-10-07 13:00:44,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2019-10-07 13:00:44,449 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:44,450 INFO L385 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 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] [2019-10-07 13:00:44,454 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:44,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:44,460 INFO L82 PathProgramCache]: Analyzing trace with hash -2019424661, now seen corresponding path program 1 times [2019-10-07 13:00:44,469 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:44,470 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:44,470 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:44,470 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:44,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:45,867 INFO L134 CoverageAnalysis]: Checked inductivity of 5223 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5223 trivial. 0 not checked. [2019-10-07 13:00:45,868 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:45,869 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:00:45,869 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:00:45,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:00:45,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:00:45,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:00:45,890 INFO L87 Difference]: Start difference. First operand 761 states. Second operand 3 states. [2019-10-07 13:00:46,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:00:46,322 INFO L93 Difference]: Finished difference Result 1577 states and 2270 transitions. [2019-10-07 13:00:46,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:00:46,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 410 [2019-10-07 13:00:46,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:00:46,351 INFO L225 Difference]: With dead ends: 1577 [2019-10-07 13:00:46,352 INFO L226 Difference]: Without dead ends: 881 [2019-10-07 13:00:46,362 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:00:46,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2019-10-07 13:00:46,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 880. [2019-10-07 13:00:46,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2019-10-07 13:00:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1243 transitions. [2019-10-07 13:00:46,523 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1243 transitions. Word has length 410 [2019-10-07 13:00:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:00:46,528 INFO L462 AbstractCegarLoop]: Abstraction has 880 states and 1243 transitions. [2019-10-07 13:00:46,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:00:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1243 transitions. [2019-10-07 13:00:46,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2019-10-07 13:00:46,543 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:46,544 INFO L385 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 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] [2019-10-07 13:00:46,544 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:46,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:46,544 INFO L82 PathProgramCache]: Analyzing trace with hash -975273765, now seen corresponding path program 1 times [2019-10-07 13:00:46,545 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:46,545 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:46,545 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:46,545 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:46,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:47,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5223 trivial. 0 not checked. [2019-10-07 13:00:47,399 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:47,402 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:00:47,408 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 13:00:47,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:00:47,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:00:47,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 13:00:47,413 INFO L87 Difference]: Start difference. First operand 880 states and 1243 transitions. Second operand 4 states. [2019-10-07 13:00:48,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:00:48,726 INFO L93 Difference]: Finished difference Result 1653 states and 2339 transitions. [2019-10-07 13:00:48,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:00:48,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 425 [2019-10-07 13:00:48,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:00:48,736 INFO L225 Difference]: With dead ends: 1653 [2019-10-07 13:00:48,737 INFO L226 Difference]: Without dead ends: 880 [2019-10-07 13:00:48,741 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 13:00:48,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2019-10-07 13:00:48,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2019-10-07 13:00:48,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2019-10-07 13:00:48,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1241 transitions. [2019-10-07 13:00:48,802 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1241 transitions. Word has length 425 [2019-10-07 13:00:48,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:00:48,804 INFO L462 AbstractCegarLoop]: Abstraction has 880 states and 1241 transitions. [2019-10-07 13:00:48,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:00:48,805 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1241 transitions. [2019-10-07 13:00:48,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2019-10-07 13:00:48,813 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:48,814 INFO L385 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 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, 1, 1, 1, 1] [2019-10-07 13:00:48,814 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:48,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:48,815 INFO L82 PathProgramCache]: Analyzing trace with hash 799577847, now seen corresponding path program 1 times [2019-10-07 13:00:48,815 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:48,815 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:48,815 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:48,815 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:48,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:49,485 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5223 trivial. 0 not checked. [2019-10-07 13:00:49,485 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:49,486 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:00:49,486 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:00:49,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:00:49,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:00:49,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:00:49,488 INFO L87 Difference]: Start difference. First operand 880 states and 1241 transitions. Second operand 5 states. [2019-10-07 13:00:49,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:00:49,913 INFO L93 Difference]: Finished difference Result 1659 states and 2339 transitions. [2019-10-07 13:00:49,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:00:49,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 431 [2019-10-07 13:00:49,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:00:49,931 INFO L225 Difference]: With dead ends: 1659 [2019-10-07 13:00:49,931 INFO L226 Difference]: Without dead ends: 880 [2019-10-07 13:00:49,936 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:00:49,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2019-10-07 13:00:50,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2019-10-07 13:00:50,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2019-10-07 13:00:50,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1239 transitions. [2019-10-07 13:00:50,011 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1239 transitions. Word has length 431 [2019-10-07 13:00:50,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:00:50,015 INFO L462 AbstractCegarLoop]: Abstraction has 880 states and 1239 transitions. [2019-10-07 13:00:50,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:00:50,016 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1239 transitions. [2019-10-07 13:00:50,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2019-10-07 13:00:50,025 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:50,025 INFO L385 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:00:50,026 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:50,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:50,026 INFO L82 PathProgramCache]: Analyzing trace with hash 2125253951, now seen corresponding path program 1 times [2019-10-07 13:00:50,027 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:50,027 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:50,027 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:50,027 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:50,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 5225 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5223 trivial. 0 not checked. [2019-10-07 13:00:51,241 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:51,242 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:00:51,242 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:00:51,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:00:51,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:00:51,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:00:51,244 INFO L87 Difference]: Start difference. First operand 880 states and 1239 transitions. Second operand 5 states. [2019-10-07 13:00:51,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:00:51,315 INFO L93 Difference]: Finished difference Result 1661 states and 2339 transitions. [2019-10-07 13:00:51,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:00:51,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 438 [2019-10-07 13:00:51,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:00:51,323 INFO L225 Difference]: With dead ends: 1661 [2019-10-07 13:00:51,323 INFO L226 Difference]: Without dead ends: 870 [2019-10-07 13:00:51,328 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:00:51,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-10-07 13:00:51,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 870. [2019-10-07 13:00:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 870 states. [2019-10-07 13:00:51,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1219 transitions. [2019-10-07 13:00:51,393 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1219 transitions. Word has length 438 [2019-10-07 13:00:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:00:51,394 INFO L462 AbstractCegarLoop]: Abstraction has 870 states and 1219 transitions. [2019-10-07 13:00:51,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:00:51,395 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1219 transitions. [2019-10-07 13:00:51,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2019-10-07 13:00:51,406 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:51,407 INFO L385 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:00:51,408 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:51,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:51,408 INFO L82 PathProgramCache]: Analyzing trace with hash -520423280, now seen corresponding path program 1 times [2019-10-07 13:00:51,408 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:51,409 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:51,409 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:51,409 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:51,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 5371 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 5354 trivial. 0 not checked. [2019-10-07 13:00:52,225 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:52,225 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:00:52,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:00:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:54,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 9034 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 13:00:54,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:00:54,398 INFO L134 CoverageAnalysis]: Checked inductivity of 5371 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 5343 trivial. 0 not checked. [2019-10-07 13:00:54,398 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:00:55,178 INFO L134 CoverageAnalysis]: Checked inductivity of 5371 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 5354 trivial. 0 not checked. [2019-10-07 13:00:55,179 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 13:00:55,179 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2019-10-07 13:00:55,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:00:55,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:00:55,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:00:55,181 INFO L87 Difference]: Start difference. First operand 870 states and 1219 transitions. Second operand 3 states. [2019-10-07 13:00:55,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:00:55,256 INFO L93 Difference]: Finished difference Result 1645 states and 2410 transitions. [2019-10-07 13:00:55,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:00:55,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 556 [2019-10-07 13:00:55,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:00:55,265 INFO L225 Difference]: With dead ends: 1645 [2019-10-07 13:00:55,266 INFO L226 Difference]: Without dead ends: 882 [2019-10-07 13:00:55,272 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 1111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:00:55,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2019-10-07 13:00:55,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 874. [2019-10-07 13:00:55,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 874 states. [2019-10-07 13:00:55,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1223 transitions. [2019-10-07 13:00:55,334 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1223 transitions. Word has length 556 [2019-10-07 13:00:55,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:00:55,335 INFO L462 AbstractCegarLoop]: Abstraction has 874 states and 1223 transitions. [2019-10-07 13:00:55,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:00:55,336 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1223 transitions. [2019-10-07 13:00:55,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2019-10-07 13:00:55,350 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:55,351 INFO L385 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:00:55,565 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:00:55,566 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:55,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:55,567 INFO L82 PathProgramCache]: Analyzing trace with hash 817424114, now seen corresponding path program 1 times [2019-10-07 13:00:55,568 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:55,568 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:55,568 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:55,568 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:55,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:56,283 INFO L134 CoverageAnalysis]: Checked inductivity of 5403 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5401 trivial. 0 not checked. [2019-10-07 13:00:56,284 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:56,284 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:00:56,284 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:00:56,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:00:56,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:00:56,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:00:56,286 INFO L87 Difference]: Start difference. First operand 874 states and 1223 transitions. Second operand 3 states. [2019-10-07 13:00:56,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:00:56,351 INFO L93 Difference]: Finished difference Result 1647 states and 2311 transitions. [2019-10-07 13:00:56,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:00:56,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 560 [2019-10-07 13:00:56,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:00:56,360 INFO L225 Difference]: With dead ends: 1647 [2019-10-07 13:00:56,361 INFO L226 Difference]: Without dead ends: 880 [2019-10-07 13:00:56,366 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:00:56,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2019-10-07 13:00:56,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 876. [2019-10-07 13:00:56,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-10-07 13:00:56,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1225 transitions. [2019-10-07 13:00:56,412 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1225 transitions. Word has length 560 [2019-10-07 13:00:56,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:00:56,413 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 1225 transitions. [2019-10-07 13:00:56,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:00:56,413 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1225 transitions. [2019-10-07 13:00:56,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2019-10-07 13:00:56,420 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:00:56,421 INFO L385 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:00:56,421 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:00:56,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:00:56,422 INFO L82 PathProgramCache]: Analyzing trace with hash -908406076, now seen corresponding path program 1 times [2019-10-07 13:00:56,422 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:00:56,422 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:56,422 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:56,423 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:00:56,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:00:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:00:57,232 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5514 trivial. 0 not checked. [2019-10-07 13:00:57,233 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:00:57,233 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:00:57,233 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 13:00:57,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:00:57,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:00:57,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 13:00:57,235 INFO L87 Difference]: Start difference. First operand 876 states and 1225 transitions. Second operand 4 states. [2019-10-07 13:01:00,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:01:00,552 INFO L93 Difference]: Finished difference Result 1552 states and 2183 transitions. [2019-10-07 13:01:00,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 13:01:00,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 582 [2019-10-07 13:01:00,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:01:00,568 INFO L225 Difference]: With dead ends: 1552 [2019-10-07 13:01:00,568 INFO L226 Difference]: Without dead ends: 758 [2019-10-07 13:01:00,574 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 13:01:00,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2019-10-07 13:01:00,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 758. [2019-10-07 13:01:00,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 758 states. [2019-10-07 13:01:00,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1067 transitions. [2019-10-07 13:01:00,660 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 1067 transitions. Word has length 582 [2019-10-07 13:01:00,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:01:00,662 INFO L462 AbstractCegarLoop]: Abstraction has 758 states and 1067 transitions. [2019-10-07 13:01:00,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:01:00,662 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1067 transitions. [2019-10-07 13:01:00,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2019-10-07 13:01:00,672 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:01:00,673 INFO L385 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:01:00,673 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:01:00,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:01:00,674 INFO L82 PathProgramCache]: Analyzing trace with hash -358419537, now seen corresponding path program 1 times [2019-10-07 13:01:00,675 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:01:00,675 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:01:00,675 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:01:00,675 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:01:00,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:01:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:01:02,367 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5513 trivial. 0 not checked. [2019-10-07 13:01:02,367 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:01:02,367 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 13:01:02,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 13:01:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:01:04,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 9115 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 13:01:04,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 13:01:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 164 proven. 1 refuted. 0 times theorem prover too weak. 5351 trivial. 0 not checked. [2019-10-07 13:01:04,452 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 13:01:05,279 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5513 trivial. 0 not checked. [2019-10-07 13:01:05,279 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 13:01:05,316 INFO L162 IcfgInterpreter]: Started Sifa with 221 locations of interest [2019-10-07 13:01:05,317 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 13:01:05,326 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 13:01:05,337 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 13:01:05,338 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 13:01:45,487 WARN L191 SmtUtils]: Spent 10.10 s on a formula simplification that was a NOOP. DAG size: 10316 [2019-10-07 13:02:45,170 WARN L191 SmtUtils]: Spent 9.90 s on a formula simplification that was a NOOP. DAG size: 10295 [2019-10-07 13:02:54,921 WARN L191 SmtUtils]: Spent 9.71 s on a formula simplification that was a NOOP. DAG size: 10295 [2019-10-07 13:03:04,495 WARN L191 SmtUtils]: Spent 9.56 s on a formula simplification that was a NOOP. DAG size: 10295 [2019-10-07 13:03:14,636 WARN L191 SmtUtils]: Spent 10.10 s on a formula simplification that was a NOOP. DAG size: 10369 [2019-10-07 13:03:24,700 WARN L191 SmtUtils]: Spent 10.01 s on a formula simplification that was a NOOP. DAG size: 10369 [2019-10-07 13:03:34,796 WARN L191 SmtUtils]: Spent 10.08 s on a formula simplification that was a NOOP. DAG size: 10369 [2019-10-07 13:03:44,846 WARN L191 SmtUtils]: Spent 10.00 s on a formula simplification that was a NOOP. DAG size: 10369 [2019-10-07 13:04:03,511 WARN L191 SmtUtils]: Spent 18.57 s on a formula simplification. DAG size of input: 10371 DAG size of output: 10369 [2019-10-07 13:04:13,567 WARN L191 SmtUtils]: Spent 10.04 s on a formula simplification that was a NOOP. DAG size: 10369 [2019-10-07 13:04:23,642 WARN L191 SmtUtils]: Spent 10.03 s on a formula simplification that was a NOOP. DAG size: 10369 [2019-10-07 13:04:33,631 WARN L191 SmtUtils]: Spent 9.97 s on a formula simplification that was a NOOP. DAG size: 10369 [2019-10-07 13:04:43,677 WARN L191 SmtUtils]: Spent 10.03 s on a formula simplification that was a NOOP. DAG size: 10369 [2019-10-07 13:04:53,771 WARN L191 SmtUtils]: Spent 10.08 s on a formula simplification that was a NOOP. DAG size: 10369 [2019-10-07 13:04:54,072 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 190 for LOIs [2019-10-07 13:05:03,496 WARN L191 SmtUtils]: Spent 9.31 s on a formula simplification that was a NOOP. DAG size: 10301 [2019-10-07 13:05:12,741 WARN L191 SmtUtils]: Spent 9.23 s on a formula simplification that was a NOOP. DAG size: 10301 [2019-10-07 13:05:22,650 WARN L191 SmtUtils]: Spent 9.88 s on a formula simplification that was a NOOP. DAG size: 10375 [2019-10-07 13:05:22,661 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 10415 for LOIs [2019-10-07 13:05:32,681 WARN L191 SmtUtils]: Spent 10.02 s on a formula simplification that was a NOOP. DAG size: 10415 [2019-10-07 13:05:42,717 WARN L191 SmtUtils]: Spent 10.02 s on a formula simplification that was a NOOP. DAG size: 10415 [2019-10-07 13:05:53,046 WARN L191 SmtUtils]: Spent 10.29 s on a formula simplification that was a NOOP. DAG size: 10445 [2019-10-07 13:06:04,829 WARN L191 SmtUtils]: Spent 11.35 s on a formula simplification that was a NOOP. DAG size: 10805 [2019-10-07 13:06:16,224 WARN L191 SmtUtils]: Spent 11.38 s on a formula simplification that was a NOOP. DAG size: 10805 [2019-10-07 13:06:28,531 WARN L191 SmtUtils]: Spent 12.22 s on a formula simplification that was a NOOP. DAG size: 10913 [2019-10-07 13:14:31,865 WARN L191 SmtUtils]: Spent 5.86 s on a formula simplification that was a NOOP. DAG size: 1097