/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 01:41:15,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 01:41:15,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 01:41:15,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 01:41:15,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 01:41:15,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 01:41:15,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 01:41:15,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 01:41:15,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 01:41:15,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 01:41:15,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 01:41:15,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 01:41:15,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 01:41:15,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 01:41:15,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 01:41:15,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 01:41:15,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 01:41:15,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 01:41:15,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 01:41:15,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 01:41:15,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 01:41:15,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 01:41:15,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 01:41:15,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 01:41:15,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 01:41:15,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 01:41:15,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 01:41:15,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 01:41:16,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 01:41:16,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 01:41:16,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 01:41:16,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 01:41:16,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 01:41:16,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 01:41:16,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 01:41:16,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 01:41:16,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 01:41:16,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 01:41:16,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 01:41:16,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 01:41:16,015 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 01:41:16,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 01:41:16,070 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 01:41:16,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 01:41:16,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 01:41:16,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 01:41:16,075 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 01:41:16,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 01:41:16,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 01:41:16,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 01:41:16,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 01:41:16,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 01:41:16,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 01:41:16,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 01:41:16,078 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 01:41:16,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 01:41:16,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 01:41:16,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 01:41:16,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 01:41:16,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 01:41:16,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 01:41:16,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 01:41:16,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 01:41:16,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 01:41:16,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 01:41:16,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 01:41:16,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 01:41:16,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 01:41:16,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 01:41:16,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 01:41:16,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 01:41:16,538 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 01:41:16,539 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 01:41:16,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c [2020-12-23 01:41:16,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/72305ad7f/71dd063e61de45f48038a8a37fe8dc46/FLAG2f0958237 [2020-12-23 01:41:17,296 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 01:41:17,297 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c [2020-12-23 01:41:17,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/72305ad7f/71dd063e61de45f48038a8a37fe8dc46/FLAG2f0958237 [2020-12-23 01:41:17,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/72305ad7f/71dd063e61de45f48038a8a37fe8dc46 [2020-12-23 01:41:17,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 01:41:17,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 01:41:17,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 01:41:17,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 01:41:17,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 01:41:17,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:41:17" (1/1) ... [2020-12-23 01:41:17,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bcae628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:17, skipping insertion in model container [2020-12-23 01:41:17,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:41:17" (1/1) ... [2020-12-23 01:41:17,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 01:41:17,637 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~blastFlag~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~cb~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~skip~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~cb~0,] left hand side expression in assignment: lhs: VariableLHS[~cb~0,] left hand side expression in assignment: lhs: VariableLHS[~state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__new_session~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__server~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp55~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__type~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp56~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp57~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp58~0,] left hand side expression in assignment: lhs: VariableLHS[~buf~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp59~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp60~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp61~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_buf___0~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~s__shutdown~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~blastFlag~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp62~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp63~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~blastFlag~0,] left hand side expression in assignment: lhs: VariableLHS[~blastFlag~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp64~0,] left hand side expression in assignment: lhs: VariableLHS[~skip~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~blastFlag~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~blastFlag~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~l~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__change_cipher_spec~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__change_cipher_spec~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~s__session__cipher~0,] left hand side expression in assignment: lhs: VariableLHS[~s__session__compress_meth~0,] left hand side expression in assignment: lhs: VariableLHS[~s__session__compress_meth~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp65~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp66~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__flags~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__tmp__next_state___0~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp67~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp68~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp69~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__flags~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__delay_buf_pop_ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__tmp__next_state___0~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp70~0,] left hand side expression in assignment: lhs: VariableLHS[~s__rwstate~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp71~0,] left hand side expression in assignment: lhs: VariableLHS[~num1~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp72~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__rwstate~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_buf___0~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp73~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp74~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~s__new_session~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~new_state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~skip~0,] [2020-12-23 01:41:17,928 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c[37065,37078] left hand side expression in assignment: lhs: VariableLHS[~s~0,] [2020-12-23 01:41:17,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:41:17,949 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~blastFlag~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~cb~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~skip~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~cb~0,] left hand side expression in assignment: lhs: VariableLHS[~cb~0,] left hand side expression in assignment: lhs: VariableLHS[~state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__new_session~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__server~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp55~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__type~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp56~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp57~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp58~0,] left hand side expression in assignment: lhs: VariableLHS[~buf~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp59~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp60~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp61~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_buf___0~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~s__shutdown~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~blastFlag~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp62~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp63~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~blastFlag~0,] left hand side expression in assignment: lhs: VariableLHS[~blastFlag~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp64~0,] left hand side expression in assignment: lhs: VariableLHS[~skip~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~blastFlag~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~blastFlag~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~l~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__change_cipher_spec~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__change_cipher_spec~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~s__session__cipher~0,] left hand side expression in assignment: lhs: VariableLHS[~s__session__compress_meth~0,] left hand side expression in assignment: lhs: VariableLHS[~s__session__compress_meth~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp65~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp66~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__flags~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__tmp__next_state___0~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp67~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp68~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp69~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__flags~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__delay_buf_pop_ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__s3__tmp__next_state___0~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp70~0,] left hand side expression in assignment: lhs: VariableLHS[~s__rwstate~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp71~0,] left hand side expression in assignment: lhs: VariableLHS[~num1~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp72~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~s__rwstate~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_buf___0~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp73~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp74~0,] left hand side expression in assignment: lhs: VariableLHS[~s__init_num~0,] left hand side expression in assignment: lhs: VariableLHS[~s__new_session~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~ret~0,] left hand side expression in assignment: lhs: VariableLHS[~new_state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~s__state~0,] left hand side expression in assignment: lhs: VariableLHS[~skip~0,] [2020-12-23 01:41:18,034 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_3.cil-3.c[37065,37078] left hand side expression in assignment: lhs: VariableLHS[~s~0,] [2020-12-23 01:41:18,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 01:41:18,072 INFO L208 MainTranslator]: Completed translation [2020-12-23 01:41:18,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:18 WrapperNode [2020-12-23 01:41:18,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 01:41:18,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 01:41:18,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 01:41:18,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 01:41:18,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:18" (1/1) ... [2020-12-23 01:41:18,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:18" (1/1) ... [2020-12-23 01:41:18,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 01:41:18,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 01:41:18,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 01:41:18,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 01:41:18,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:18" (1/1) ... [2020-12-23 01:41:18,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:18" (1/1) ... [2020-12-23 01:41:18,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:18" (1/1) ... [2020-12-23 01:41:18,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:18" (1/1) ... [2020-12-23 01:41:18,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:18" (1/1) ... [2020-12-23 01:41:18,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:18" (1/1) ... [2020-12-23 01:41:18,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:18" (1/1) ... [2020-12-23 01:41:18,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 01:41:18,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 01:41:18,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 01:41:18,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 01:41:18,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 01:41:18,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 01:41:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 01:41:18,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 01:41:18,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 01:41:18,700 WARN L807 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-23 01:41:19,151 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-12-23 01:41:19,152 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-12-23 01:41:19,162 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 01:41:19,162 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-23 01:41:19,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:41:19 BoogieIcfgContainer [2020-12-23 01:41:19,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 01:41:19,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 01:41:19,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 01:41:19,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 01:41:19,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:41:17" (1/3) ... [2020-12-23 01:41:19,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791beee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:41:19, skipping insertion in model container [2020-12-23 01:41:19,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:41:18" (2/3) ... [2020-12-23 01:41:19,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791beee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:41:19, skipping insertion in model container [2020-12-23 01:41:19,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:41:19" (3/3) ... [2020-12-23 01:41:19,174 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-3.c [2020-12-23 01:41:19,180 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 01:41:19,186 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 01:41:19,205 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 01:41:19,240 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 01:41:19,241 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 01:41:19,241 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 01:41:19,241 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 01:41:19,241 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 01:41:19,241 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 01:41:19,241 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 01:41:19,241 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 01:41:19,262 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2020-12-23 01:41:19,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-23 01:41:19,269 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:19,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:41:19,271 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:19,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:19,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2020-12-23 01:41:19,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:19,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14653540] [2020-12-23 01:41:19,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:41:19,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14653540] [2020-12-23 01:41:19,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:19,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:19,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289393676] [2020-12-23 01:41:19,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:19,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:19,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:19,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:19,536 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 3 states. [2020-12-23 01:41:19,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:19,726 INFO L93 Difference]: Finished difference Result 252 states and 427 transitions. [2020-12-23 01:41:19,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:19,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-23 01:41:19,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:19,741 INFO L225 Difference]: With dead ends: 252 [2020-12-23 01:41:19,741 INFO L226 Difference]: Without dead ends: 115 [2020-12-23 01:41:19,745 INFO L677 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 [2020-12-23 01:41:19,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-23 01:41:19,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-23 01:41:19,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-23 01:41:19,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2020-12-23 01:41:19,802 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2020-12-23 01:41:19,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:19,803 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2020-12-23 01:41:19,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:19,803 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2020-12-23 01:41:19,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-23 01:41:19,805 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:19,805 INFO L422 BasicCegarLoop]: trace histogram [2, 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] [2020-12-23 01:41:19,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 01:41:19,806 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:19,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:19,807 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2020-12-23 01:41:19,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:19,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404157508] [2020-12-23 01:41:19,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:19,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 01:41:19,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404157508] [2020-12-23 01:41:19,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:19,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:19,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120717010] [2020-12-23 01:41:19,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:19,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:19,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:19,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:19,961 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand 3 states. [2020-12-23 01:41:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:20,161 INFO L93 Difference]: Finished difference Result 238 states and 360 transitions. [2020-12-23 01:41:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:20,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-12-23 01:41:20,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:20,164 INFO L225 Difference]: With dead ends: 238 [2020-12-23 01:41:20,164 INFO L226 Difference]: Without dead ends: 133 [2020-12-23 01:41:20,166 INFO L677 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 [2020-12-23 01:41:20,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-12-23 01:41:20,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2020-12-23 01:41:20,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-12-23 01:41:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2020-12-23 01:41:20,182 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2020-12-23 01:41:20,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:20,183 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2020-12-23 01:41:20,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:20,183 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2020-12-23 01:41:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-23 01:41:20,186 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:20,186 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:20,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 01:41:20,186 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:20,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:20,187 INFO L82 PathProgramCache]: Analyzing trace with hash 356453796, now seen corresponding path program 1 times [2020-12-23 01:41:20,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:20,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103891835] [2020-12-23 01:41:20,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:20,303 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-23 01:41:20,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103891835] [2020-12-23 01:41:20,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:20,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:20,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905210351] [2020-12-23 01:41:20,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:20,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:20,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:20,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:20,307 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand 3 states. [2020-12-23 01:41:20,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:20,505 INFO L93 Difference]: Finished difference Result 272 states and 408 transitions. [2020-12-23 01:41:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:20,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-23 01:41:20,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:20,508 INFO L225 Difference]: With dead ends: 272 [2020-12-23 01:41:20,508 INFO L226 Difference]: Without dead ends: 152 [2020-12-23 01:41:20,510 INFO L677 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 [2020-12-23 01:41:20,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-12-23 01:41:20,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2020-12-23 01:41:20,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-23 01:41:20,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2020-12-23 01:41:20,525 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2020-12-23 01:41:20,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:20,526 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2020-12-23 01:41:20,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:20,526 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2020-12-23 01:41:20,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-23 01:41:20,528 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:20,528 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2020-12-23 01:41:20,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 01:41:20,529 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:20,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:20,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1238030766, now seen corresponding path program 1 times [2020-12-23 01:41:20,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:20,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850356368] [2020-12-23 01:41:20,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:20,625 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-23 01:41:20,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850356368] [2020-12-23 01:41:20,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:20,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:20,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087563394] [2020-12-23 01:41:20,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:20,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:20,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:20,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:20,629 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand 3 states. [2020-12-23 01:41:20,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:20,857 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2020-12-23 01:41:20,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:20,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-12-23 01:41:20,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:20,860 INFO L225 Difference]: With dead ends: 335 [2020-12-23 01:41:20,861 INFO L226 Difference]: Without dead ends: 197 [2020-12-23 01:41:20,862 INFO L677 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 [2020-12-23 01:41:20,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-12-23 01:41:20,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2020-12-23 01:41:20,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-12-23 01:41:20,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2020-12-23 01:41:20,895 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2020-12-23 01:41:20,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:20,895 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2020-12-23 01:41:20,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2020-12-23 01:41:20,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-23 01:41:20,901 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:20,902 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2020-12-23 01:41:20,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 01:41:20,904 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:20,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:20,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1251498196, now seen corresponding path program 1 times [2020-12-23 01:41:20,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:20,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742557058] [2020-12-23 01:41:20,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:21,057 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-23 01:41:21,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742557058] [2020-12-23 01:41:21,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:21,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:21,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781581101] [2020-12-23 01:41:21,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:21,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:21,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:21,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:21,063 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand 3 states. [2020-12-23 01:41:21,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:21,201 INFO L93 Difference]: Finished difference Result 390 states and 555 transitions. [2020-12-23 01:41:21,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:21,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-12-23 01:41:21,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:21,204 INFO L225 Difference]: With dead ends: 390 [2020-12-23 01:41:21,204 INFO L226 Difference]: Without dead ends: 212 [2020-12-23 01:41:21,206 INFO L677 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 [2020-12-23 01:41:21,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-12-23 01:41:21,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2020-12-23 01:41:21,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-12-23 01:41:21,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2020-12-23 01:41:21,218 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2020-12-23 01:41:21,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:21,219 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2020-12-23 01:41:21,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:21,219 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2020-12-23 01:41:21,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-23 01:41:21,222 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:21,222 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 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] [2020-12-23 01:41:21,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 01:41:21,222 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:21,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:21,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1821092144, now seen corresponding path program 1 times [2020-12-23 01:41:21,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:21,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239767740] [2020-12-23 01:41:21,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-12-23 01:41:21,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239767740] [2020-12-23 01:41:21,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:21,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:21,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962147598] [2020-12-23 01:41:21,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:21,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:21,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:21,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:21,319 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand 3 states. [2020-12-23 01:41:21,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:21,477 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2020-12-23 01:41:21,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:21,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-12-23 01:41:21,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:21,484 INFO L225 Difference]: With dead ends: 428 [2020-12-23 01:41:21,484 INFO L226 Difference]: Without dead ends: 231 [2020-12-23 01:41:21,485 INFO L677 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 [2020-12-23 01:41:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-12-23 01:41:21,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2020-12-23 01:41:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-12-23 01:41:21,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2020-12-23 01:41:21,511 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2020-12-23 01:41:21,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:21,514 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2020-12-23 01:41:21,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:21,515 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2020-12-23 01:41:21,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-23 01:41:21,525 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:21,525 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 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] [2020-12-23 01:41:21,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 01:41:21,526 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:21,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:21,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1901861672, now seen corresponding path program 1 times [2020-12-23 01:41:21,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:21,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144990522] [2020-12-23 01:41:21,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:21,657 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-23 01:41:21,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144990522] [2020-12-23 01:41:21,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:21,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:21,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992418387] [2020-12-23 01:41:21,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:21,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:21,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:21,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:21,660 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand 3 states. [2020-12-23 01:41:21,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:21,701 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2020-12-23 01:41:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:21,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-12-23 01:41:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:21,705 INFO L225 Difference]: With dead ends: 661 [2020-12-23 01:41:21,705 INFO L226 Difference]: Without dead ends: 443 [2020-12-23 01:41:21,706 INFO L677 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 [2020-12-23 01:41:21,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-12-23 01:41:21,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2020-12-23 01:41:21,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-12-23 01:41:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 606 transitions. [2020-12-23 01:41:21,721 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 606 transitions. Word has length 105 [2020-12-23 01:41:21,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:21,722 INFO L481 AbstractCegarLoop]: Abstraction has 443 states and 606 transitions. [2020-12-23 01:41:21,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:21,722 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 606 transitions. [2020-12-23 01:41:21,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-23 01:41:21,724 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:21,724 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 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] [2020-12-23 01:41:21,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 01:41:21,724 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:21,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:21,725 INFO L82 PathProgramCache]: Analyzing trace with hash 837467901, now seen corresponding path program 1 times [2020-12-23 01:41:21,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:21,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814282618] [2020-12-23 01:41:21,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:21,780 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-12-23 01:41:21,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814282618] [2020-12-23 01:41:21,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:21,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:21,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403726535] [2020-12-23 01:41:21,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:21,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:21,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:21,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:21,783 INFO L87 Difference]: Start difference. First operand 443 states and 606 transitions. Second operand 3 states. [2020-12-23 01:41:21,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:21,811 INFO L93 Difference]: Finished difference Result 897 states and 1226 transitions. [2020-12-23 01:41:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:21,811 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-12-23 01:41:21,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:21,814 INFO L225 Difference]: With dead ends: 897 [2020-12-23 01:41:21,814 INFO L226 Difference]: Without dead ends: 464 [2020-12-23 01:41:21,816 INFO L677 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 [2020-12-23 01:41:21,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-12-23 01:41:21,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2020-12-23 01:41:21,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-12-23 01:41:21,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 633 transitions. [2020-12-23 01:41:21,830 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 633 transitions. Word has length 106 [2020-12-23 01:41:21,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:21,831 INFO L481 AbstractCegarLoop]: Abstraction has 464 states and 633 transitions. [2020-12-23 01:41:21,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:21,831 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 633 transitions. [2020-12-23 01:41:21,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-23 01:41:21,832 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:21,833 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 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] [2020-12-23 01:41:21,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 01:41:21,833 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:21,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:21,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1077707647, now seen corresponding path program 1 times [2020-12-23 01:41:21,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:21,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745507272] [2020-12-23 01:41:21,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-12-23 01:41:21,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745507272] [2020-12-23 01:41:21,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:21,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:21,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974323068] [2020-12-23 01:41:21,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:21,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:21,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:21,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:21,884 INFO L87 Difference]: Start difference. First operand 464 states and 633 transitions. Second operand 3 states. [2020-12-23 01:41:21,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:21,910 INFO L93 Difference]: Finished difference Result 945 states and 1287 transitions. [2020-12-23 01:41:21,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:21,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-12-23 01:41:21,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:21,913 INFO L225 Difference]: With dead ends: 945 [2020-12-23 01:41:21,914 INFO L226 Difference]: Without dead ends: 491 [2020-12-23 01:41:21,915 INFO L677 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 [2020-12-23 01:41:21,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-12-23 01:41:21,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2020-12-23 01:41:21,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-12-23 01:41:21,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 667 transitions. [2020-12-23 01:41:21,930 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 667 transitions. Word has length 106 [2020-12-23 01:41:21,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:21,930 INFO L481 AbstractCegarLoop]: Abstraction has 491 states and 667 transitions. [2020-12-23 01:41:21,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:21,931 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 667 transitions. [2020-12-23 01:41:21,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-23 01:41:21,932 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:21,932 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 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] [2020-12-23 01:41:21,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 01:41:21,933 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:21,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:21,933 INFO L82 PathProgramCache]: Analyzing trace with hash -2015927886, now seen corresponding path program 1 times [2020-12-23 01:41:21,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:21,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901167361] [2020-12-23 01:41:21,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:21,987 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-12-23 01:41:21,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901167361] [2020-12-23 01:41:21,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:21,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:21,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528190400] [2020-12-23 01:41:21,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:21,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:21,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:21,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:21,990 INFO L87 Difference]: Start difference. First operand 491 states and 667 transitions. Second operand 3 states. [2020-12-23 01:41:22,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:22,033 INFO L93 Difference]: Finished difference Result 709 states and 967 transitions. [2020-12-23 01:41:22,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:22,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-23 01:41:22,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:22,038 INFO L225 Difference]: With dead ends: 709 [2020-12-23 01:41:22,038 INFO L226 Difference]: Without dead ends: 707 [2020-12-23 01:41:22,039 INFO L677 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 [2020-12-23 01:41:22,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-12-23 01:41:22,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2020-12-23 01:41:22,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2020-12-23 01:41:22,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 965 transitions. [2020-12-23 01:41:22,070 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 965 transitions. Word has length 107 [2020-12-23 01:41:22,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:22,070 INFO L481 AbstractCegarLoop]: Abstraction has 707 states and 965 transitions. [2020-12-23 01:41:22,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:22,071 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 965 transitions. [2020-12-23 01:41:22,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-12-23 01:41:22,073 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:22,073 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:22,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 01:41:22,074 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:22,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:22,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1870688019, now seen corresponding path program 1 times [2020-12-23 01:41:22,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:22,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58982627] [2020-12-23 01:41:22,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:22,143 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-12-23 01:41:22,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58982627] [2020-12-23 01:41:22,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:22,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:22,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949878153] [2020-12-23 01:41:22,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:22,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:22,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:22,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:22,146 INFO L87 Difference]: Start difference. First operand 707 states and 965 transitions. Second operand 3 states. [2020-12-23 01:41:22,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:22,336 INFO L93 Difference]: Finished difference Result 1530 states and 2149 transitions. [2020-12-23 01:41:22,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:22,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-12-23 01:41:22,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:22,341 INFO L225 Difference]: With dead ends: 1530 [2020-12-23 01:41:22,342 INFO L226 Difference]: Without dead ends: 857 [2020-12-23 01:41:22,343 INFO L677 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 [2020-12-23 01:41:22,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-12-23 01:41:22,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 824. [2020-12-23 01:41:22,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-12-23 01:41:22,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1154 transitions. [2020-12-23 01:41:22,367 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1154 transitions. Word has length 162 [2020-12-23 01:41:22,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:22,368 INFO L481 AbstractCegarLoop]: Abstraction has 824 states and 1154 transitions. [2020-12-23 01:41:22,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:22,368 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1154 transitions. [2020-12-23 01:41:22,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-12-23 01:41:22,372 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:22,372 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:41:22,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 01:41:22,372 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:22,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:22,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1491644371, now seen corresponding path program 1 times [2020-12-23 01:41:22,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:22,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694407113] [2020-12-23 01:41:22,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:22,493 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-12-23 01:41:22,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694407113] [2020-12-23 01:41:22,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:22,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:22,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413704246] [2020-12-23 01:41:22,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:22,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:22,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:22,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:22,496 INFO L87 Difference]: Start difference. First operand 824 states and 1154 transitions. Second operand 3 states. [2020-12-23 01:41:22,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:22,708 INFO L93 Difference]: Finished difference Result 1892 states and 2730 transitions. [2020-12-23 01:41:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:22,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-12-23 01:41:22,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:22,714 INFO L225 Difference]: With dead ends: 1892 [2020-12-23 01:41:22,715 INFO L226 Difference]: Without dead ends: 1054 [2020-12-23 01:41:22,717 INFO L677 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 [2020-12-23 01:41:22,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2020-12-23 01:41:22,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1013. [2020-12-23 01:41:22,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2020-12-23 01:41:22,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1406 transitions. [2020-12-23 01:41:22,758 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1406 transitions. Word has length 189 [2020-12-23 01:41:22,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:22,758 INFO L481 AbstractCegarLoop]: Abstraction has 1013 states and 1406 transitions. [2020-12-23 01:41:22,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1406 transitions. [2020-12-23 01:41:22,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-12-23 01:41:22,763 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:22,763 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 01:41:22,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 01:41:22,764 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:22,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:22,765 INFO L82 PathProgramCache]: Analyzing trace with hash -637948485, now seen corresponding path program 1 times [2020-12-23 01:41:22,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:22,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447548304] [2020-12-23 01:41:22,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:22,910 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-12-23 01:41:22,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447548304] [2020-12-23 01:41:22,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:22,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:22,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651965731] [2020-12-23 01:41:22,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:22,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:22,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:22,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:22,915 INFO L87 Difference]: Start difference. First operand 1013 states and 1406 transitions. Second operand 3 states. [2020-12-23 01:41:23,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:23,140 INFO L93 Difference]: Finished difference Result 2148 states and 3007 transitions. [2020-12-23 01:41:23,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:23,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-12-23 01:41:23,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:23,146 INFO L225 Difference]: With dead ends: 2148 [2020-12-23 01:41:23,146 INFO L226 Difference]: Without dead ends: 1127 [2020-12-23 01:41:23,148 INFO L677 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 [2020-12-23 01:41:23,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-12-23 01:41:23,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1088. [2020-12-23 01:41:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2020-12-23 01:41:23,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1502 transitions. [2020-12-23 01:41:23,184 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1502 transitions. Word has length 210 [2020-12-23 01:41:23,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:23,185 INFO L481 AbstractCegarLoop]: Abstraction has 1088 states and 1502 transitions. [2020-12-23 01:41:23,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:23,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1502 transitions. [2020-12-23 01:41:23,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-12-23 01:41:23,192 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:23,193 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:23,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-23 01:41:23,193 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:23,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:23,194 INFO L82 PathProgramCache]: Analyzing trace with hash 668090344, now seen corresponding path program 1 times [2020-12-23 01:41:23,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:23,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767579489] [2020-12-23 01:41:23,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:23,324 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-12-23 01:41:23,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767579489] [2020-12-23 01:41:23,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:23,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:23,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427804324] [2020-12-23 01:41:23,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:23,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:23,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:23,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:23,328 INFO L87 Difference]: Start difference. First operand 1088 states and 1502 transitions. Second operand 3 states. [2020-12-23 01:41:23,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:23,530 INFO L93 Difference]: Finished difference Result 2298 states and 3196 transitions. [2020-12-23 01:41:23,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:23,531 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-12-23 01:41:23,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:23,537 INFO L225 Difference]: With dead ends: 2298 [2020-12-23 01:41:23,537 INFO L226 Difference]: Without dead ends: 1208 [2020-12-23 01:41:23,539 INFO L677 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 [2020-12-23 01:41:23,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-12-23 01:41:23,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1172. [2020-12-23 01:41:23,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-12-23 01:41:23,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1613 transitions. [2020-12-23 01:41:23,573 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1613 transitions. Word has length 234 [2020-12-23 01:41:23,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:23,574 INFO L481 AbstractCegarLoop]: Abstraction has 1172 states and 1613 transitions. [2020-12-23 01:41:23,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:23,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1613 transitions. [2020-12-23 01:41:23,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-12-23 01:41:23,578 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:23,578 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:23,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-23 01:41:23,579 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:23,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:23,579 INFO L82 PathProgramCache]: Analyzing trace with hash 786531818, now seen corresponding path program 1 times [2020-12-23 01:41:23,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:23,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335457021] [2020-12-23 01:41:23,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-12-23 01:41:23,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335457021] [2020-12-23 01:41:23,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:23,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:23,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238643331] [2020-12-23 01:41:23,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:23,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:23,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:23,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:23,698 INFO L87 Difference]: Start difference. First operand 1172 states and 1613 transitions. Second operand 3 states. [2020-12-23 01:41:23,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:23,907 INFO L93 Difference]: Finished difference Result 2466 states and 3421 transitions. [2020-12-23 01:41:23,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:23,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-12-23 01:41:23,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:23,915 INFO L225 Difference]: With dead ends: 2466 [2020-12-23 01:41:23,916 INFO L226 Difference]: Without dead ends: 1304 [2020-12-23 01:41:23,920 INFO L677 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 [2020-12-23 01:41:23,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-12-23 01:41:23,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1265. [2020-12-23 01:41:23,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2020-12-23 01:41:23,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1745 transitions. [2020-12-23 01:41:23,958 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1745 transitions. Word has length 234 [2020-12-23 01:41:23,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:23,958 INFO L481 AbstractCegarLoop]: Abstraction has 1265 states and 1745 transitions. [2020-12-23 01:41:23,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:23,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1745 transitions. [2020-12-23 01:41:23,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-12-23 01:41:23,964 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:23,964 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:23,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-23 01:41:23,966 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:23,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:23,967 INFO L82 PathProgramCache]: Analyzing trace with hash 12496008, now seen corresponding path program 1 times [2020-12-23 01:41:23,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:23,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847802158] [2020-12-23 01:41:23,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:24,151 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2020-12-23 01:41:24,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847802158] [2020-12-23 01:41:24,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:24,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:24,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315477379] [2020-12-23 01:41:24,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:24,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:24,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:24,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:24,156 INFO L87 Difference]: Start difference. First operand 1265 states and 1745 transitions. Second operand 3 states. [2020-12-23 01:41:24,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:24,222 INFO L93 Difference]: Finished difference Result 3718 states and 5136 transitions. [2020-12-23 01:41:24,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:24,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-12-23 01:41:24,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:24,237 INFO L225 Difference]: With dead ends: 3718 [2020-12-23 01:41:24,238 INFO L226 Difference]: Without dead ends: 2490 [2020-12-23 01:41:24,241 INFO L677 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 [2020-12-23 01:41:24,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2020-12-23 01:41:24,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2488. [2020-12-23 01:41:24,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2488 states. [2020-12-23 01:41:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3435 transitions. [2020-12-23 01:41:24,317 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3435 transitions. Word has length 264 [2020-12-23 01:41:24,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:24,317 INFO L481 AbstractCegarLoop]: Abstraction has 2488 states and 3435 transitions. [2020-12-23 01:41:24,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:24,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3435 transitions. [2020-12-23 01:41:24,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-12-23 01:41:24,326 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:24,326 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:24,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-23 01:41:24,327 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:24,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:24,327 INFO L82 PathProgramCache]: Analyzing trace with hash 130937482, now seen corresponding path program 1 times [2020-12-23 01:41:24,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:24,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497335351] [2020-12-23 01:41:24,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:24,454 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2020-12-23 01:41:24,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497335351] [2020-12-23 01:41:24,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:24,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:24,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126138271] [2020-12-23 01:41:24,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:24,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:24,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:24,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:24,457 INFO L87 Difference]: Start difference. First operand 2488 states and 3435 transitions. Second operand 3 states. [2020-12-23 01:41:24,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:24,679 INFO L93 Difference]: Finished difference Result 5251 states and 7296 transitions. [2020-12-23 01:41:24,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:24,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-12-23 01:41:24,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:24,694 INFO L225 Difference]: With dead ends: 5251 [2020-12-23 01:41:24,694 INFO L226 Difference]: Without dead ends: 2770 [2020-12-23 01:41:24,699 INFO L677 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 [2020-12-23 01:41:24,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2020-12-23 01:41:24,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2698. [2020-12-23 01:41:24,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2698 states. [2020-12-23 01:41:24,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3747 transitions. [2020-12-23 01:41:24,784 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3747 transitions. Word has length 264 [2020-12-23 01:41:24,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:24,785 INFO L481 AbstractCegarLoop]: Abstraction has 2698 states and 3747 transitions. [2020-12-23 01:41:24,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:24,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3747 transitions. [2020-12-23 01:41:24,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-12-23 01:41:24,793 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:24,794 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:24,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-23 01:41:24,794 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:24,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:24,795 INFO L82 PathProgramCache]: Analyzing trace with hash -142796669, now seen corresponding path program 1 times [2020-12-23 01:41:24,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:24,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59279647] [2020-12-23 01:41:24,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2020-12-23 01:41:24,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59279647] [2020-12-23 01:41:24,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:24,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:24,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203355118] [2020-12-23 01:41:24,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:24,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:24,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:24,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:24,972 INFO L87 Difference]: Start difference. First operand 2698 states and 3747 transitions. Second operand 3 states. [2020-12-23 01:41:25,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:25,209 INFO L93 Difference]: Finished difference Result 5443 states and 7548 transitions. [2020-12-23 01:41:25,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:25,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 299 [2020-12-23 01:41:25,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:25,224 INFO L225 Difference]: With dead ends: 5443 [2020-12-23 01:41:25,224 INFO L226 Difference]: Without dead ends: 2764 [2020-12-23 01:41:25,230 INFO L677 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 [2020-12-23 01:41:25,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2020-12-23 01:41:25,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2692. [2020-12-23 01:41:25,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-12-23 01:41:25,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3711 transitions. [2020-12-23 01:41:25,328 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3711 transitions. Word has length 299 [2020-12-23 01:41:25,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:25,328 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3711 transitions. [2020-12-23 01:41:25,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:25,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3711 transitions. [2020-12-23 01:41:25,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-12-23 01:41:25,339 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:25,340 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:25,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-23 01:41:25,340 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:25,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:25,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1408099866, now seen corresponding path program 1 times [2020-12-23 01:41:25,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:25,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326913868] [2020-12-23 01:41:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1175 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-12-23 01:41:25,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326913868] [2020-12-23 01:41:25,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:25,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:25,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517921173] [2020-12-23 01:41:25,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:25,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:25,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:25,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:25,521 INFO L87 Difference]: Start difference. First operand 2692 states and 3711 transitions. Second operand 3 states. [2020-12-23 01:41:25,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:25,745 INFO L93 Difference]: Finished difference Result 5407 states and 7446 transitions. [2020-12-23 01:41:25,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:25,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-12-23 01:41:25,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:25,761 INFO L225 Difference]: With dead ends: 5407 [2020-12-23 01:41:25,762 INFO L226 Difference]: Without dead ends: 2752 [2020-12-23 01:41:25,784 INFO L677 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 [2020-12-23 01:41:25,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2020-12-23 01:41:25,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2692. [2020-12-23 01:41:25,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-12-23 01:41:25,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3657 transitions. [2020-12-23 01:41:25,898 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3657 transitions. Word has length 308 [2020-12-23 01:41:25,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:25,899 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3657 transitions. [2020-12-23 01:41:25,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:25,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3657 transitions. [2020-12-23 01:41:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-12-23 01:41:25,909 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:25,909 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:25,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-23 01:41:25,910 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:25,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:25,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1960500931, now seen corresponding path program 1 times [2020-12-23 01:41:25,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:25,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513405805] [2020-12-23 01:41:25,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:26,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-12-23 01:41:26,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513405805] [2020-12-23 01:41:26,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:26,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:26,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067923898] [2020-12-23 01:41:26,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:26,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:26,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:26,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:26,100 INFO L87 Difference]: Start difference. First operand 2692 states and 3657 transitions. Second operand 3 states. [2020-12-23 01:41:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:26,355 INFO L93 Difference]: Finished difference Result 5653 states and 7626 transitions. [2020-12-23 01:41:26,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:26,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 336 [2020-12-23 01:41:26,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:26,371 INFO L225 Difference]: With dead ends: 5653 [2020-12-23 01:41:26,371 INFO L226 Difference]: Without dead ends: 2998 [2020-12-23 01:41:26,376 INFO L677 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 [2020-12-23 01:41:26,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2020-12-23 01:41:26,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2782. [2020-12-23 01:41:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2782 states. [2020-12-23 01:41:26,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3777 transitions. [2020-12-23 01:41:26,477 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3777 transitions. Word has length 336 [2020-12-23 01:41:26,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:26,478 INFO L481 AbstractCegarLoop]: Abstraction has 2782 states and 3777 transitions. [2020-12-23 01:41:26,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:26,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3777 transitions. [2020-12-23 01:41:26,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-12-23 01:41:26,487 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:26,487 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:26,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-23 01:41:26,488 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:26,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:26,488 INFO L82 PathProgramCache]: Analyzing trace with hash 806996379, now seen corresponding path program 1 times [2020-12-23 01:41:26,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:26,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185074080] [2020-12-23 01:41:26,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:26,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 871 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2020-12-23 01:41:26,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185074080] [2020-12-23 01:41:26,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:26,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:26,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771805082] [2020-12-23 01:41:26,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:26,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:26,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:26,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:26,743 INFO L87 Difference]: Start difference. First operand 2782 states and 3777 transitions. Second operand 3 states. [2020-12-23 01:41:26,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:26,842 INFO L93 Difference]: Finished difference Result 7882 states and 10755 transitions. [2020-12-23 01:41:26,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:26,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 337 [2020-12-23 01:41:26,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:26,886 INFO L225 Difference]: With dead ends: 7882 [2020-12-23 01:41:26,886 INFO L226 Difference]: Without dead ends: 5137 [2020-12-23 01:41:26,894 INFO L677 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 [2020-12-23 01:41:26,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2020-12-23 01:41:27,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 5135. [2020-12-23 01:41:27,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5135 states. [2020-12-23 01:41:27,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 7007 transitions. [2020-12-23 01:41:27,046 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 7007 transitions. Word has length 337 [2020-12-23 01:41:27,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:27,047 INFO L481 AbstractCegarLoop]: Abstraction has 5135 states and 7007 transitions. [2020-12-23 01:41:27,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:27,047 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 7007 transitions. [2020-12-23 01:41:27,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-12-23 01:41:27,058 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:27,059 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:27,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-23 01:41:27,059 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:27,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:27,060 INFO L82 PathProgramCache]: Analyzing trace with hash 722980357, now seen corresponding path program 1 times [2020-12-23 01:41:27,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:27,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719914605] [2020-12-23 01:41:27,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:27,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-12-23 01:41:27,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719914605] [2020-12-23 01:41:27,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952273709] [2020-12-23 01:41:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 01:41:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:27,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 01:41:27,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:41:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 791 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2020-12-23 01:41:28,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 01:41:28,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-12-23 01:41:28,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812128826] [2020-12-23 01:41:28,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 01:41:28,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:28,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 01:41:28,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:41:28,236 INFO L87 Difference]: Start difference. First operand 5135 states and 7007 transitions. Second operand 4 states. [2020-12-23 01:41:28,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:28,835 INFO L93 Difference]: Finished difference Result 10175 states and 13865 transitions. [2020-12-23 01:41:28,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 01:41:28,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 347 [2020-12-23 01:41:28,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:28,856 INFO L225 Difference]: With dead ends: 10175 [2020-12-23 01:41:28,857 INFO L226 Difference]: Without dead ends: 7688 [2020-12-23 01:41:28,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:41:28,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2020-12-23 01:41:29,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 5669. [2020-12-23 01:41:29,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2020-12-23 01:41:29,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7643 transitions. [2020-12-23 01:41:29,071 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7643 transitions. Word has length 347 [2020-12-23 01:41:29,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:29,072 INFO L481 AbstractCegarLoop]: Abstraction has 5669 states and 7643 transitions. [2020-12-23 01:41:29,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 01:41:29,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7643 transitions. [2020-12-23 01:41:29,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-12-23 01:41:29,084 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:29,085 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:29,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-12-23 01:41:29,299 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:29,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:29,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1881562091, now seen corresponding path program 1 times [2020-12-23 01:41:29,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:29,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395015436] [2020-12-23 01:41:29,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:29,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-12-23 01:41:29,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395015436] [2020-12-23 01:41:29,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365588932] [2020-12-23 01:41:29,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 01:41:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:29,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 01:41:29,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:41:30,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-12-23 01:41:30,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 01:41:30,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-12-23 01:41:30,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526558570] [2020-12-23 01:41:30,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 01:41:30,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:30,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 01:41:30,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:41:30,316 INFO L87 Difference]: Start difference. First operand 5669 states and 7643 transitions. Second operand 4 states. [2020-12-23 01:41:30,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:30,749 INFO L93 Difference]: Finished difference Result 12703 states and 17150 transitions. [2020-12-23 01:41:30,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 01:41:30,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2020-12-23 01:41:30,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:30,765 INFO L225 Difference]: With dead ends: 12703 [2020-12-23 01:41:30,765 INFO L226 Difference]: Without dead ends: 7058 [2020-12-23 01:41:30,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:41:30,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2020-12-23 01:41:30,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 5789. [2020-12-23 01:41:30,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5789 states. [2020-12-23 01:41:30,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 7724 transitions. [2020-12-23 01:41:30,951 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 7724 transitions. Word has length 374 [2020-12-23 01:41:30,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:30,952 INFO L481 AbstractCegarLoop]: Abstraction has 5789 states and 7724 transitions. [2020-12-23 01:41:30,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 01:41:30,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 7724 transitions. [2020-12-23 01:41:30,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-12-23 01:41:30,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:30,966 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:31,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-12-23 01:41:31,180 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:31,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:31,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1433443056, now seen corresponding path program 1 times [2020-12-23 01:41:31,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:31,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696585847] [2020-12-23 01:41:31,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:31,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2020-12-23 01:41:31,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696585847] [2020-12-23 01:41:31,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 01:41:31,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 01:41:31,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289760523] [2020-12-23 01:41:31,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:31,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:31,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:31,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 01:41:31,444 INFO L87 Difference]: Start difference. First operand 5789 states and 7724 transitions. Second operand 3 states. [2020-12-23 01:41:31,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:31,675 INFO L93 Difference]: Finished difference Result 11133 states and 14642 transitions. [2020-12-23 01:41:31,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:31,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 413 [2020-12-23 01:41:31,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:31,683 INFO L225 Difference]: With dead ends: 11133 [2020-12-23 01:41:31,684 INFO L226 Difference]: Without dead ends: 3109 [2020-12-23 01:41:31,694 INFO L677 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 [2020-12-23 01:41:31,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2020-12-23 01:41:31,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3043. [2020-12-23 01:41:31,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3043 states. [2020-12-23 01:41:31,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4063 transitions. [2020-12-23 01:41:31,818 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4063 transitions. Word has length 413 [2020-12-23 01:41:31,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:31,818 INFO L481 AbstractCegarLoop]: Abstraction has 3043 states and 4063 transitions. [2020-12-23 01:41:31,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:31,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4063 transitions. [2020-12-23 01:41:31,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2020-12-23 01:41:31,833 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:31,834 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:31,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-23 01:41:31,834 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:31,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:31,835 INFO L82 PathProgramCache]: Analyzing trace with hash -517038626, now seen corresponding path program 1 times [2020-12-23 01:41:31,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:31,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083416868] [2020-12-23 01:41:31,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:32,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1571 proven. 14 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2020-12-23 01:41:32,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083416868] [2020-12-23 01:41:32,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420517779] [2020-12-23 01:41:32,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:41:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:32,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 01:41:32,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:41:33,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2711 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2020-12-23 01:41:33,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:41:33,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-23 01:41:33,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785833209] [2020-12-23 01:41:33,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:33,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:33,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:33,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:41:33,304 INFO L87 Difference]: Start difference. First operand 3043 states and 4063 transitions. Second operand 3 states. [2020-12-23 01:41:33,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:33,359 INFO L93 Difference]: Finished difference Result 3068 states and 4093 transitions. [2020-12-23 01:41:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:33,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 497 [2020-12-23 01:41:33,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:33,368 INFO L225 Difference]: With dead ends: 3068 [2020-12-23 01:41:33,368 INFO L226 Difference]: Without dead ends: 2571 [2020-12-23 01:41:33,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:41:33,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2020-12-23 01:41:33,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2548. [2020-12-23 01:41:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2548 states. [2020-12-23 01:41:33,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3399 transitions. [2020-12-23 01:41:33,457 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3399 transitions. Word has length 497 [2020-12-23 01:41:33,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:33,458 INFO L481 AbstractCegarLoop]: Abstraction has 2548 states and 3399 transitions. [2020-12-23 01:41:33,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:33,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3399 transitions. [2020-12-23 01:41:33,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2020-12-23 01:41:33,472 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:33,473 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 14, 14, 13, 13, 12, 12, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:33,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-12-23 01:41:33,685 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:33,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:33,686 INFO L82 PathProgramCache]: Analyzing trace with hash 706380836, now seen corresponding path program 1 times [2020-12-23 01:41:33,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:33,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411005667] [2020-12-23 01:41:33,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:33,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 1546 proven. 14 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2020-12-23 01:41:33,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411005667] [2020-12-23 01:41:33,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609905137] [2020-12-23 01:41:33,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:41:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:34,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-23 01:41:34,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:41:34,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 2339 trivial. 0 not checked. [2020-12-23 01:41:34,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 01:41:34,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-23 01:41:34,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877951061] [2020-12-23 01:41:34,789 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 01:41:34,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:34,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 01:41:34,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:41:34,790 INFO L87 Difference]: Start difference. First operand 2548 states and 3399 transitions. Second operand 3 states. [2020-12-23 01:41:34,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:34,978 INFO L93 Difference]: Finished difference Result 5167 states and 6909 transitions. [2020-12-23 01:41:34,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 01:41:34,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 498 [2020-12-23 01:41:34,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:34,984 INFO L225 Difference]: With dead ends: 5167 [2020-12-23 01:41:34,984 INFO L226 Difference]: Without dead ends: 2656 [2020-12-23 01:41:34,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:41:34,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2020-12-23 01:41:35,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2653. [2020-12-23 01:41:35,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2653 states. [2020-12-23 01:41:35,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 3411 transitions. [2020-12-23 01:41:35,055 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 3411 transitions. Word has length 498 [2020-12-23 01:41:35,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:35,056 INFO L481 AbstractCegarLoop]: Abstraction has 2653 states and 3411 transitions. [2020-12-23 01:41:35,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 01:41:35,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 3411 transitions. [2020-12-23 01:41:35,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2020-12-23 01:41:35,064 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 01:41:35,064 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 01:41:35,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:41:35,278 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 01:41:35,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 01:41:35,280 INFO L82 PathProgramCache]: Analyzing trace with hash 180586689, now seen corresponding path program 2 times [2020-12-23 01:41:35,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 01:41:35,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278868115] [2020-12-23 01:41:35,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 01:41:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 01:41:35,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-12-23 01:41:35,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278868115] [2020-12-23 01:41:35,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228607306] [2020-12-23 01:41:35,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 01:41:35,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-23 01:41:35,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-23 01:41:35,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 01:41:35,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 01:41:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3928 backedges. 2054 proven. 14 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-12-23 01:41:36,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 01:41:36,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-12-23 01:41:36,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747165484] [2020-12-23 01:41:36,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 01:41:36,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 01:41:36,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 01:41:36,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 01:41:36,496 INFO L87 Difference]: Start difference. First operand 2653 states and 3411 transitions. Second operand 4 states. [2020-12-23 01:41:36,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 01:41:36,683 INFO L93 Difference]: Finished difference Result 2888 states and 3708 transitions. [2020-12-23 01:41:36,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 01:41:36,683 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 609 [2020-12-23 01:41:36,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 01:41:36,684 INFO L225 Difference]: With dead ends: 2888 [2020-12-23 01:41:36,684 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 01:41:36,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 01:41:36,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 01:41:36,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 01:41:36,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 01:41:36,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 01:41:36,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 609 [2020-12-23 01:41:36,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 01:41:36,688 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 01:41:36,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 01:41:36,689 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 01:41:36,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 01:41:36,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-12-23 01:41:36,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-23 01:41:37,326 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 115 [2020-12-23 01:41:38,199 WARN L197 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2020-12-23 01:41:38,554 INFO L189 CegarLoopUtils]: For program point L498(lines 498 500) no Hoare annotation was computed. [2020-12-23 01:41:38,554 INFO L189 CegarLoopUtils]: For program point L498-2(lines 498 500) no Hoare annotation was computed. [2020-12-23 01:41:38,554 INFO L189 CegarLoopUtils]: For program point L300(lines 300 304) no Hoare annotation was computed. [2020-12-23 01:41:38,554 INFO L189 CegarLoopUtils]: For program point L300-2(lines 300 304) no Hoare annotation was computed. [2020-12-23 01:41:38,554 INFO L192 CegarLoopUtils]: At program point L565(lines 108 566) the Hoare annotation is: true [2020-12-23 01:41:38,554 INFO L189 CegarLoopUtils]: For program point L202(lines 202 515) no Hoare annotation was computed. [2020-12-23 01:41:38,555 INFO L189 CegarLoopUtils]: For program point L169(lines 169 526) no Hoare annotation was computed. [2020-12-23 01:41:38,555 INFO L189 CegarLoopUtils]: For program point L136(lines 136 537) no Hoare annotation was computed. [2020-12-23 01:41:38,555 INFO L189 CegarLoopUtils]: For program point L103(lines 103 107) no Hoare annotation was computed. [2020-12-23 01:41:38,555 INFO L185 CegarLoopUtils]: At program point L203(lines 199 516) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1 .cse2) (and .cse0 (not .cse2) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2020-12-23 01:41:38,555 INFO L185 CegarLoopUtils]: At program point L137(lines 133 538) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-12-23 01:41:38,555 INFO L189 CegarLoopUtils]: For program point L104(lines 104 106) no Hoare annotation was computed. [2020-12-23 01:41:38,555 INFO L189 CegarLoopUtils]: For program point L237(lines 237 253) no Hoare annotation was computed. [2020-12-23 01:41:38,556 INFO L189 CegarLoopUtils]: For program point L237-2(lines 212 510) no Hoare annotation was computed. [2020-12-23 01:41:38,556 INFO L189 CegarLoopUtils]: For program point L469(lines 469 481) no Hoare annotation was computed. [2020-12-23 01:41:38,556 INFO L189 CegarLoopUtils]: For program point L436(lines 436 450) no Hoare annotation was computed. [2020-12-23 01:41:38,557 INFO L189 CegarLoopUtils]: For program point L436-1(lines 436 450) no Hoare annotation was computed. [2020-12-23 01:41:38,557 INFO L189 CegarLoopUtils]: For program point L469-2(lines 469 481) no Hoare annotation was computed. [2020-12-23 01:41:38,557 INFO L189 CegarLoopUtils]: For program point L337(lines 337 340) no Hoare annotation was computed. [2020-12-23 01:41:38,557 INFO L189 CegarLoopUtils]: For program point L271(lines 271 273) no Hoare annotation was computed. [2020-12-23 01:41:38,557 INFO L189 CegarLoopUtils]: For program point L205(lines 205 514) no Hoare annotation was computed. [2020-12-23 01:41:38,559 INFO L189 CegarLoopUtils]: For program point L271-2(lines 212 510) no Hoare annotation was computed. [2020-12-23 01:41:38,559 INFO L189 CegarLoopUtils]: For program point L172(lines 172 525) no Hoare annotation was computed. [2020-12-23 01:41:38,559 INFO L189 CegarLoopUtils]: For program point L139(lines 139 536) no Hoare annotation was computed. [2020-12-23 01:41:38,559 INFO L189 CegarLoopUtils]: For program point L503(lines 503 505) no Hoare annotation was computed. [2020-12-23 01:41:38,559 INFO L185 CegarLoopUtils]: At program point L206(lines 205 514) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse2 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (not .cse1) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2) (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1))) [2020-12-23 01:41:38,560 INFO L185 CegarLoopUtils]: At program point L173(lines 163 528) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-12-23 01:41:38,561 INFO L189 CegarLoopUtils]: For program point L570(lines 570 572) no Hoare annotation was computed. [2020-12-23 01:41:38,561 INFO L189 CegarLoopUtils]: For program point L570-2(lines 570 572) no Hoare annotation was computed. [2020-12-23 01:41:38,561 INFO L189 CegarLoopUtils]: For program point L372(lines 372 374) no Hoare annotation was computed. [2020-12-23 01:41:38,561 INFO L189 CegarLoopUtils]: For program point L406(lines 406 408) no Hoare annotation was computed. [2020-12-23 01:41:38,561 INFO L189 CegarLoopUtils]: For program point L208(lines 208 513) no Hoare annotation was computed. [2020-12-23 01:41:38,562 INFO L189 CegarLoopUtils]: For program point L175(lines 175 524) no Hoare annotation was computed. [2020-12-23 01:41:38,563 INFO L189 CegarLoopUtils]: For program point L142(lines 142 535) no Hoare annotation was computed. [2020-12-23 01:41:38,563 INFO L189 CegarLoopUtils]: For program point L109-1(lines 86 576) no Hoare annotation was computed. [2020-12-23 01:41:38,563 INFO L189 CegarLoopUtils]: For program point L440(lines 440 446) no Hoare annotation was computed. [2020-12-23 01:41:38,563 INFO L192 CegarLoopUtils]: At program point L209(lines 208 513) the Hoare annotation is: true [2020-12-23 01:41:38,564 INFO L185 CegarLoopUtils]: At program point L143(lines 139 536) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1 .cse2))) [2020-12-23 01:41:38,564 INFO L189 CegarLoopUtils]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-23 01:41:38,564 INFO L189 CegarLoopUtils]: For program point L243(lines 243 246) no Hoare annotation was computed. [2020-12-23 01:41:38,564 INFO L189 CegarLoopUtils]: For program point L475(lines 475 478) no Hoare annotation was computed. [2020-12-23 01:41:38,564 INFO L192 CegarLoopUtils]: At program point L211(lines 210 513) the Hoare annotation is: true [2020-12-23 01:41:38,564 INFO L189 CegarLoopUtils]: For program point L178(lines 178 523) no Hoare annotation was computed. [2020-12-23 01:41:38,564 INFO L189 CegarLoopUtils]: For program point L145(lines 145 534) no Hoare annotation was computed. [2020-12-23 01:41:38,564 INFO L189 CegarLoopUtils]: For program point L112(lines 112 545) no Hoare annotation was computed. [2020-12-23 01:41:38,565 INFO L192 CegarLoopUtils]: At program point L575(lines 12 577) the Hoare annotation is: true [2020-12-23 01:41:38,565 INFO L189 CegarLoopUtils]: For program point L311(lines 311 321) no Hoare annotation was computed. [2020-12-23 01:41:38,565 INFO L189 CegarLoopUtils]: For program point L311-2(lines 311 321) no Hoare annotation was computed. [2020-12-23 01:41:38,565 INFO L185 CegarLoopUtils]: At program point L179(lines 175 524) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-12-23 01:41:38,565 INFO L185 CegarLoopUtils]: At program point L113(lines 112 545) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-12-23 01:41:38,565 INFO L189 CegarLoopUtils]: For program point L345(lines 345 347) no Hoare annotation was computed. [2020-12-23 01:41:38,566 INFO L185 CegarLoopUtils]: At program point L511(lines 109 564) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (let ((.cse8 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (not .cse7)) (.cse10 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse9 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse11 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse12 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse2 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse5 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse9 .cse6 .cse10 .cse7) (and .cse8 .cse1 .cse2 .cse10) (and .cse0 .cse9 .cse3 .cse6 .cse7) (and .cse4 (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (and .cse2 .cse11 .cse7) (and .cse12 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2) (and .cse11 .cse6) (and .cse12 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse4 .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse2 .cse5 .cse7)))) [2020-12-23 01:41:38,566 INFO L189 CegarLoopUtils]: For program point L412(lines 412 416) no Hoare annotation was computed. [2020-12-23 01:41:38,566 INFO L185 CegarLoopUtils]: At program point L346(lines 86 576) the Hoare annotation is: false [2020-12-23 01:41:38,566 INFO L189 CegarLoopUtils]: For program point L412-2(lines 212 510) no Hoare annotation was computed. [2020-12-23 01:41:38,566 INFO L189 CegarLoopUtils]: For program point L181(lines 181 522) no Hoare annotation was computed. [2020-12-23 01:41:38,567 INFO L189 CegarLoopUtils]: For program point L148(lines 148 533) no Hoare annotation was computed. [2020-12-23 01:41:38,567 INFO L189 CegarLoopUtils]: For program point L115(lines 115 544) no Hoare annotation was computed. [2020-12-23 01:41:38,567 INFO L189 CegarLoopUtils]: For program point L248(lines 248 251) no Hoare annotation was computed. [2020-12-23 01:41:38,567 INFO L185 CegarLoopUtils]: At program point L149(lines 145 534) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-12-23 01:41:38,567 INFO L189 CegarLoopUtils]: For program point L546(lines 546 562) no Hoare annotation was computed. [2020-12-23 01:41:38,567 INFO L189 CegarLoopUtils]: For program point L381(lines 381 383) no Hoare annotation was computed. [2020-12-23 01:41:38,567 INFO L189 CegarLoopUtils]: For program point L348(lines 348 350) no Hoare annotation was computed. [2020-12-23 01:41:38,567 INFO L189 CegarLoopUtils]: For program point L315(lines 315 317) no Hoare annotation was computed. [2020-12-23 01:41:38,567 INFO L189 CegarLoopUtils]: For program point L282(lines 282 284) no Hoare annotation was computed. [2020-12-23 01:41:38,567 INFO L189 CegarLoopUtils]: For program point L315-2(lines 313 321) no Hoare annotation was computed. [2020-12-23 01:41:38,568 INFO L189 CegarLoopUtils]: For program point L547(lines 547 561) no Hoare annotation was computed. [2020-12-23 01:41:38,568 INFO L185 CegarLoopUtils]: At program point L217(lines 115 544) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)) [2020-12-23 01:41:38,568 INFO L189 CegarLoopUtils]: For program point L184(lines 184 521) no Hoare annotation was computed. [2020-12-23 01:41:38,568 INFO L189 CegarLoopUtils]: For program point L151(lines 151 532) no Hoare annotation was computed. [2020-12-23 01:41:38,568 INFO L189 CegarLoopUtils]: For program point L118(lines 118 543) no Hoare annotation was computed. [2020-12-23 01:41:38,568 INFO L189 CegarLoopUtils]: For program point L548(lines 548 553) no Hoare annotation was computed. [2020-12-23 01:41:38,568 INFO L189 CegarLoopUtils]: For program point L548-2(lines 547 561) no Hoare annotation was computed. [2020-12-23 01:41:38,569 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-23 01:41:38,569 INFO L185 CegarLoopUtils]: At program point L185(lines 181 522) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-12-23 01:41:38,569 INFO L189 CegarLoopUtils]: For program point L550(lines 550 552) no Hoare annotation was computed. [2020-12-23 01:41:38,569 INFO L189 CegarLoopUtils]: For program point L385(lines 385 390) no Hoare annotation was computed. [2020-12-23 01:41:38,569 INFO L189 CegarLoopUtils]: For program point L385-2(lines 385 390) no Hoare annotation was computed. [2020-12-23 01:41:38,569 INFO L189 CegarLoopUtils]: For program point L187(lines 187 520) no Hoare annotation was computed. [2020-12-23 01:41:38,569 INFO L189 CegarLoopUtils]: For program point L154(lines 154 531) no Hoare annotation was computed. [2020-12-23 01:41:38,569 INFO L189 CegarLoopUtils]: For program point L121(lines 121 542) no Hoare annotation was computed. [2020-12-23 01:41:38,569 INFO L185 CegarLoopUtils]: At program point L155(lines 151 532) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-12-23 01:41:38,569 INFO L189 CegarLoopUtils]: For program point L486-1(lines 486 488) no Hoare annotation was computed. [2020-12-23 01:41:38,570 INFO L189 CegarLoopUtils]: For program point L222(lines 222 224) no Hoare annotation was computed. [2020-12-23 01:41:38,570 INFO L189 CegarLoopUtils]: For program point L222-2(lines 222 224) no Hoare annotation was computed. [2020-12-23 01:41:38,570 INFO L192 CegarLoopUtils]: At program point L586(lines 578 588) the Hoare annotation is: true [2020-12-23 01:41:38,570 INFO L189 CegarLoopUtils]: For program point L421(lines 421 424) no Hoare annotation was computed. [2020-12-23 01:41:38,571 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-23 01:41:38,571 INFO L189 CegarLoopUtils]: For program point L190(lines 190 519) no Hoare annotation was computed. [2020-12-23 01:41:38,571 INFO L189 CegarLoopUtils]: For program point L157(lines 157 530) no Hoare annotation was computed. [2020-12-23 01:41:38,571 INFO L189 CegarLoopUtils]: For program point L124(lines 124 541) no Hoare annotation was computed. [2020-12-23 01:41:38,571 INFO L189 CegarLoopUtils]: For program point L290(lines 290 296) no Hoare annotation was computed. [2020-12-23 01:41:38,571 INFO L185 CegarLoopUtils]: At program point L191(lines 187 520) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-12-23 01:41:38,571 INFO L189 CegarLoopUtils]: For program point L555(lines 555 559) no Hoare annotation was computed. [2020-12-23 01:41:38,571 INFO L189 CegarLoopUtils]: For program point L456(lines 456 458) no Hoare annotation was computed. [2020-12-23 01:41:38,571 INFO L189 CegarLoopUtils]: For program point L357(lines 357 359) no Hoare annotation was computed. [2020-12-23 01:41:38,572 INFO L189 CegarLoopUtils]: For program point L259(lines 259 262) no Hoare annotation was computed. [2020-12-23 01:41:38,572 INFO L189 CegarLoopUtils]: For program point L193(lines 193 518) no Hoare annotation was computed. [2020-12-23 01:41:38,572 INFO L189 CegarLoopUtils]: For program point L160(lines 160 529) no Hoare annotation was computed. [2020-12-23 01:41:38,572 INFO L189 CegarLoopUtils]: For program point L127(lines 127 540) no Hoare annotation was computed. [2020-12-23 01:41:38,572 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-23 01:41:38,572 INFO L189 CegarLoopUtils]: For program point L293(lines 293 295) no Hoare annotation was computed. [2020-12-23 01:41:38,572 INFO L189 CegarLoopUtils]: For program point L227(lines 227 230) no Hoare annotation was computed. [2020-12-23 01:41:38,572 INFO L189 CegarLoopUtils]: For program point L293-2(lines 212 510) no Hoare annotation was computed. [2020-12-23 01:41:38,572 INFO L185 CegarLoopUtils]: At program point L161(lines 157 530) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-12-23 01:41:38,572 INFO L189 CegarLoopUtils]: For program point L95(lines 95 101) no Hoare annotation was computed. [2020-12-23 01:41:38,573 INFO L189 CegarLoopUtils]: For program point L492(lines 492 494) no Hoare annotation was computed. [2020-12-23 01:41:38,573 INFO L189 CegarLoopUtils]: For program point L459(lines 459 463) no Hoare annotation was computed. [2020-12-23 01:41:38,573 INFO L189 CegarLoopUtils]: For program point L492-2(lines 492 494) no Hoare annotation was computed. [2020-12-23 01:41:38,573 INFO L189 CegarLoopUtils]: For program point L459-2(lines 459 463) no Hoare annotation was computed. [2020-12-23 01:41:38,573 INFO L189 CegarLoopUtils]: For program point L360(lines 360 364) no Hoare annotation was computed. [2020-12-23 01:41:38,573 INFO L189 CegarLoopUtils]: For program point L360-2(lines 360 364) no Hoare annotation was computed. [2020-12-23 01:41:38,573 INFO L189 CegarLoopUtils]: For program point L196(lines 196 517) no Hoare annotation was computed. [2020-12-23 01:41:38,573 INFO L189 CegarLoopUtils]: For program point L163(lines 163 528) no Hoare annotation was computed. [2020-12-23 01:41:38,573 INFO L189 CegarLoopUtils]: For program point L130(lines 130 539) no Hoare annotation was computed. [2020-12-23 01:41:38,573 INFO L189 CegarLoopUtils]: For program point L329(lines 329 331) no Hoare annotation was computed. [2020-12-23 01:41:38,573 INFO L189 CegarLoopUtils]: For program point L329-2(lines 212 510) no Hoare annotation was computed. [2020-12-23 01:41:38,574 INFO L185 CegarLoopUtils]: At program point L197(lines 193 518) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2))) [2020-12-23 01:41:38,574 INFO L185 CegarLoopUtils]: At program point L131(lines 127 540) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-12-23 01:41:38,574 INFO L189 CegarLoopUtils]: For program point L98(lines 98 100) no Hoare annotation was computed. [2020-12-23 01:41:38,574 INFO L189 CegarLoopUtils]: For program point L98-2(lines 95 101) no Hoare annotation was computed. [2020-12-23 01:41:38,574 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-23 01:41:38,574 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 574) no Hoare annotation was computed. [2020-12-23 01:41:38,574 INFO L189 CegarLoopUtils]: For program point L429(lines 429 431) no Hoare annotation was computed. [2020-12-23 01:41:38,574 INFO L189 CegarLoopUtils]: For program point L396(lines 396 398) no Hoare annotation was computed. [2020-12-23 01:41:38,575 INFO L189 CegarLoopUtils]: For program point L199(lines 199 516) no Hoare annotation was computed. [2020-12-23 01:41:38,575 INFO L189 CegarLoopUtils]: For program point L166(lines 166 527) no Hoare annotation was computed. [2020-12-23 01:41:38,575 INFO L189 CegarLoopUtils]: For program point L133(lines 133 538) no Hoare annotation was computed. [2020-12-23 01:41:38,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:41:38 BoogieIcfgContainer [2020-12-23 01:41:38,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 01:41:38,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 01:41:38,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 01:41:38,621 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 01:41:38,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:41:19" (3/4) ... [2020-12-23 01:41:38,626 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 01:41:38,656 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-23 01:41:38,657 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 01:41:38,658 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 01:41:38,659 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 01:41:38,808 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/openssl-simplified/s3_clnt_3.cil-3.c-witness.graphml [2020-12-23 01:41:38,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 01:41:38,810 INFO L168 Benchmark]: Toolchain (without parser) took 21230.38 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 971.0 MB). Free memory was 125.0 MB in the beginning and 756.2 MB in the end (delta: -631.2 MB). Peak memory consumption was 340.1 MB. Max. memory is 8.0 GB. [2020-12-23 01:41:38,811 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 123.5 MB in the end (delta: 89.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 01:41:38,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.65 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 109.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-23 01:41:38,811 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.38 ms. Allocated memory is still 151.0 MB. Free memory was 109.9 MB in the beginning and 107.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 01:41:38,812 INFO L168 Benchmark]: Boogie Preprocessor took 45.93 ms. Allocated memory is still 151.0 MB. Free memory was 107.1 MB in the beginning and 105.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 01:41:38,813 INFO L168 Benchmark]: RCFGBuilder took 926.68 ms. Allocated memory is still 151.0 MB. Free memory was 104.8 MB in the beginning and 91.6 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2020-12-23 01:41:38,814 INFO L168 Benchmark]: TraceAbstraction took 19454.17 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 971.0 MB). Free memory was 91.6 MB in the beginning and 766.2 MB in the end (delta: -674.6 MB). Peak memory consumption was 651.4 MB. Max. memory is 8.0 GB. [2020-12-23 01:41:38,814 INFO L168 Benchmark]: Witness Printer took 187.14 ms. Allocated memory is still 1.1 GB. Free memory was 766.2 MB in the beginning and 756.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 01:41:38,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 123.5 MB in the end (delta: 89.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 492.65 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 109.9 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 114.38 ms. Allocated memory is still 151.0 MB. Free memory was 109.9 MB in the beginning and 107.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 45.93 ms. Allocated memory is still 151.0 MB. Free memory was 107.1 MB in the beginning and 105.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 926.68 ms. Allocated memory is still 151.0 MB. Free memory was 104.8 MB in the beginning and 91.6 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 19454.17 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 971.0 MB). Free memory was 91.6 MB in the beginning and 766.2 MB in the end (delta: -674.6 MB). Peak memory consumption was 651.4 MB. Max. memory is 8.0 GB. * Witness Printer took 187.14 ms. Allocated memory is still 1.1 GB. Free memory was 766.2 MB in the beginning and 756.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 574]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: ((((blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || (((blastFlag == 2 && s__state <= 4432) && 4352 <= s__state) && s__hit == 0) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4432 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((s__state <= 4560 && 4512 <= s__state) && blastFlag == 2)) || (((s__state <= 4560 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4448) && s__hit == 0 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4512) && s__hit == 0 - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (s__state <= 4432 && blastFlag == 1) && 4352 <= s__state - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((((((((((((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) || (((blastFlag <= 4 && 4400 == s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || (((s__state <= 4560 && !(s__hit == 0)) && blastFlag == 2) && 4560 <= s__state)) || ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((blastFlag <= 4 && s__state == 4416) && s__hit == 0)) || (blastFlag == 1 && s__state == 4384)) || ((blastFlag == 2 && s__state <= 3) && s__hit == 0)) || ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2)) || (s__state <= 3 && s__s3__tmp__next_state___0 <= 4560)) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0)) || (blastFlag == 0 && s__state == 4368)) || ((blastFlag == 2 && 4400 == s__state) && s__hit == 0) - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: ((blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state) && s__hit == 0 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0) || (((s__state <= 4560 && !(s__hit == 0)) && blastFlag == 2) && 4560 <= s__state) - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4464) && s__hit == 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4480) && s__hit == 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (blastFlag == 0 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: ((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) || ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: s__state <= 4352 && blastFlag == 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4512) && s__hit == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 128 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.6s, OverallIterations: 27, TraceHistogramMax: 21, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4907 SDtfs, 2134 SDslu, 2647 SDs, 0 SdLazy, 2485 SolverSat, 611 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2412 GetRequests, 2375 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5789occurred in iteration=23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 27 MinimizatonAttempts, 4017 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 155 NumberOfFragments, 425 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9035 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 22 FomulaSimplificationsInter, 2018 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 8657 NumberOfCodeBlocks, 8657 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 8625 ConstructedInterpolants, 0 QuantifiedInterpolants, 4435883 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4061 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 32 InterpolantComputations, 24 PerfectInterpolantSequences, 37541/37631 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...