java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 10:04:33,417 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 10:04:33,418 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 10:04:33,431 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 10:04:33,432 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 10:04:33,432 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 10:04:33,433 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 10:04:33,435 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 10:04:33,436 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 10:04:33,437 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 10:04:33,437 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 10:04:33,438 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 10:04:33,438 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 10:04:33,439 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 10:04:33,440 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 10:04:33,441 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 10:04:33,442 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 10:04:33,444 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 10:04:33,444 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 10:04:33,445 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 10:04:33,447 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 10:04:33,447 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 10:04:33,447 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 10:04:33,448 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 10:04:33,449 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 10:04:33,450 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 10:04:33,450 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 10:04:33,451 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 10:04:33,451 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 10:04:33,451 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 10:04:33,452 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 10:04:33,452 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-04-11 10:04:33,472 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 10:04:33,472 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 10:04:33,473 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 10:04:33,473 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 10:04:33,473 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 10:04:33,473 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 10:04:33,473 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 10:04:33,473 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 10:04:33,474 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 10:04:33,474 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 10:04:33,474 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 10:04:33,474 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 10:04:33,474 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 10:04:33,474 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 10:04:33,474 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 10:04:33,475 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 10:04:33,475 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 10:04:33,475 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 10:04:33,475 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 10:04:33,475 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 10:04:33,475 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 10:04:33,476 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 10:04:33,476 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 10:04:33,476 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 10:04:33,503 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 10:04:33,515 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 10:04:33,519 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 10:04:33,521 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 10:04:33,522 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 10:04:33,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,817 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf7a655e71 [2018-04-11 10:04:33,978 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 10:04:33,979 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 10:04:33,979 INFO L168 CDTParser]: Scanning openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,986 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 10:04:33,986 INFO L215 ultiparseSymbolTable]: [2018-04-11 10:04:33,986 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 10:04:33,987 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,987 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlen ('cstrlen') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,987 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,987 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,987 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmp ('cstrncmp') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,987 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstr ('cstrstr') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,987 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 10:04:33,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,987 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:33,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:34,008 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGf7a655e71 [2018-04-11 10:04:34,011 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 10:04:34,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 10:04:34,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 10:04:34,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 10:04:34,017 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 10:04:34,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 10:04:34" (1/1) ... [2018-04-11 10:04:34,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7b7345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:34, skipping insertion in model container [2018-04-11 10:04:34,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 10:04:34" (1/1) ... [2018-04-11 10:04:34,031 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 10:04:34,052 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 10:04:34,176 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 10:04:34,213 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 10:04:34,218 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 114 non ball SCCs. Number of states in SCCs 114. [2018-04-11 10:04:34,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:34 WrapperNode [2018-04-11 10:04:34,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 10:04:34,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 10:04:34,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 10:04:34,246 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 10:04:34,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:34" (1/1) ... [2018-04-11 10:04:34,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:34" (1/1) ... [2018-04-11 10:04:34,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:34" (1/1) ... [2018-04-11 10:04:34,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:34" (1/1) ... [2018-04-11 10:04:34,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:34" (1/1) ... [2018-04-11 10:04:34,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:34" (1/1) ... [2018-04-11 10:04:34,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:34" (1/1) ... [2018-04-11 10:04:34,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 10:04:34,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 10:04:34,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 10:04:34,288 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 10:04:34,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:34" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 10:04:34,375 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 10:04:34,375 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 10:04:34,375 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 10:04:34,375 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 10:04:34,376 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlen [2018-04-11 10:04:34,376 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmp [2018-04-11 10:04:34,376 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstr [2018-04-11 10:04:34,376 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 10:04:34,376 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 10:04:34,376 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 10:04:34,376 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 10:04:34,376 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 10:04:34,376 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 10:04:34,376 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 10:04:34,376 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 10:04:34,376 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 10:04:34,377 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 10:04:34,377 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 10:04:34,377 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 10:04:34,377 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 10:04:34,377 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 10:04:34,377 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 10:04:34,377 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 10:04:34,377 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 10:04:34,377 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 10:04:34,378 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 10:04:34,378 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 10:04:34,378 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 10:04:34,378 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 10:04:34,378 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 10:04:34,378 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 10:04:34,378 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 10:04:34,378 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 10:04:34,379 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 10:04:34,379 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 10:04:34,379 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 10:04:34,379 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 10:04:34,379 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 10:04:34,379 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 10:04:34,379 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 10:04:34,379 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 10:04:34,379 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 10:04:34,379 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 10:04:34,380 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 10:04:34,380 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 10:04:34,380 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 10:04:34,380 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 10:04:34,380 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 10:04:34,380 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 10:04:34,380 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 10:04:34,380 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 10:04:34,380 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 10:04:34,381 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 10:04:34,381 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 10:04:34,381 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 10:04:34,381 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 10:04:34,381 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 10:04:34,381 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 10:04:34,381 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 10:04:34,381 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 10:04:34,382 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 10:04:34,382 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 10:04:34,382 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 10:04:34,382 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 10:04:34,382 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 10:04:34,382 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 10:04:34,382 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 10:04:34,382 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 10:04:34,382 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 10:04:34,383 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 10:04:34,383 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 10:04:34,383 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 10:04:34,383 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 10:04:34,383 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 10:04:34,383 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 10:04:34,383 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 10:04:34,383 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 10:04:34,383 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 10:04:34,383 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 10:04:34,384 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 10:04:34,384 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 10:04:34,384 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 10:04:34,384 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 10:04:34,384 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 10:04:34,384 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 10:04:34,384 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 10:04:34,384 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 10:04:34,384 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 10:04:34,384 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 10:04:34,385 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 10:04:34,385 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 10:04:34,385 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 10:04:34,385 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 10:04:34,385 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 10:04:34,385 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 10:04:34,385 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 10:04:34,385 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 10:04:34,385 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 10:04:34,385 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 10:04:34,386 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 10:04:34,386 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 10:04:34,386 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 10:04:34,386 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 10:04:34,386 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 10:04:34,386 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 10:04:34,386 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 10:04:34,386 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 10:04:34,386 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 10:04:34,386 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 10:04:34,387 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 10:04:34,387 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 10:04:34,387 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlen [2018-04-11 10:04:34,387 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 10:04:34,387 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmp [2018-04-11 10:04:34,387 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstr [2018-04-11 10:04:34,387 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 10:04:34,387 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 10:04:34,387 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 10:04:34,388 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 10:04:34,388 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 10:04:34,388 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 10:04:34,388 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 10:04:34,702 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 10:04:34,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 10:04:34 BoogieIcfgContainer [2018-04-11 10:04:34,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 10:04:34,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 10:04:34,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 10:04:34,705 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 10:04:34,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 10:04:34" (1/3) ... [2018-04-11 10:04:34,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e668e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 10:04:34, skipping insertion in model container [2018-04-11 10:04:34,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 10:04:34" (2/3) ... [2018-04-11 10:04:34,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e668e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 10:04:34, skipping insertion in model container [2018-04-11 10:04:34,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 10:04:34" (3/3) ... [2018-04-11 10:04:34,707 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 10:04:34,712 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 10:04:34,718 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2018-04-11 10:04:34,747 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 10:04:34,747 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 10:04:34,747 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 10:04:34,747 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 10:04:34,748 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 10:04:34,748 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 10:04:34,748 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 10:04:34,748 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 10:04:34,748 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 10:04:34,748 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 10:04:34,757 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-04-11 10:04:34,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 10:04:34,763 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:34,763 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:34,763 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:34,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1281524752, now seen corresponding path program 1 times [2018-04-11 10:04:34,767 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:34,767 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:34,797 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:34,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:34,797 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:34,840 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:34,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:34,908 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:34,908 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 10:04:34,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 10:04:34,920 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 10:04:34,921 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 10:04:34,922 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 4 states. [2018-04-11 10:04:35,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:35,006 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2018-04-11 10:04:35,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 10:04:35,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-11 10:04:35,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:35,015 INFO L225 Difference]: With dead ends: 89 [2018-04-11 10:04:35,016 INFO L226 Difference]: Without dead ends: 86 [2018-04-11 10:04:35,017 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 10:04:35,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-04-11 10:04:35,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-04-11 10:04:35,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-04-11 10:04:35,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2018-04-11 10:04:35,041 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 13 [2018-04-11 10:04:35,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:35,042 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2018-04-11 10:04:35,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 10:04:35,042 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2018-04-11 10:04:35,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 10:04:35,042 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:35,042 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:35,042 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:35,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1281524751, now seen corresponding path program 1 times [2018-04-11 10:04:35,043 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:35,043 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:35,043 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:35,044 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:35,059 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:35,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:35,131 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:35,131 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 10:04:35,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 10:04:35,132 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 10:04:35,133 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:04:35,133 INFO L87 Difference]: Start difference. First operand 86 states and 96 transitions. Second operand 6 states. [2018-04-11 10:04:35,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:35,177 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2018-04-11 10:04:35,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 10:04:35,180 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-11 10:04:35,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:35,181 INFO L225 Difference]: With dead ends: 85 [2018-04-11 10:04:35,182 INFO L226 Difference]: Without dead ends: 85 [2018-04-11 10:04:35,182 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-11 10:04:35,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-11 10:04:35,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-04-11 10:04:35,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-11 10:04:35,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2018-04-11 10:04:35,189 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 13 [2018-04-11 10:04:35,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:35,189 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2018-04-11 10:04:35,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 10:04:35,189 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2018-04-11 10:04:35,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 10:04:35,189 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:35,190 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:35,190 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:35,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1072561654, now seen corresponding path program 1 times [2018-04-11 10:04:35,190 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:35,190 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:35,191 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:35,193 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:35,203 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:35,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:35,226 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:35,227 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 10:04:35,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 10:04:35,227 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 10:04:35,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 10:04:35,227 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand 4 states. [2018-04-11 10:04:35,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:35,297 INFO L93 Difference]: Finished difference Result 84 states and 94 transitions. [2018-04-11 10:04:35,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 10:04:35,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-11 10:04:35,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:35,298 INFO L225 Difference]: With dead ends: 84 [2018-04-11 10:04:35,298 INFO L226 Difference]: Without dead ends: 84 [2018-04-11 10:04:35,298 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 10:04:35,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-11 10:04:35,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-04-11 10:04:35,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-04-11 10:04:35,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2018-04-11 10:04:35,302 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 14 [2018-04-11 10:04:35,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:35,302 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2018-04-11 10:04:35,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 10:04:35,303 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2018-04-11 10:04:35,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 10:04:35,303 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:35,303 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:35,303 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:35,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1072561653, now seen corresponding path program 1 times [2018-04-11 10:04:35,304 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:35,304 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:35,308 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:35,308 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:35,318 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:35,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:35,366 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:35,367 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 10:04:35,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 10:04:35,367 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 10:04:35,367 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 10:04:35,367 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand 5 states. [2018-04-11 10:04:35,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:35,398 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2018-04-11 10:04:35,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 10:04:35,398 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 10:04:35,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:35,399 INFO L225 Difference]: With dead ends: 83 [2018-04-11 10:04:35,399 INFO L226 Difference]: Without dead ends: 83 [2018-04-11 10:04:35,400 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:04:35,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-11 10:04:35,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-04-11 10:04:35,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-11 10:04:35,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2018-04-11 10:04:35,404 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 14 [2018-04-11 10:04:35,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:35,404 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2018-04-11 10:04:35,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 10:04:35,404 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2018-04-11 10:04:35,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 10:04:35,405 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:35,405 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:35,405 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:35,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1872573656, now seen corresponding path program 1 times [2018-04-11 10:04:35,405 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:35,405 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:35,406 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:35,406 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:35,416 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:35,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:35,437 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:35,438 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 10:04:35,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 10:04:35,438 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 10:04:35,438 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 10:04:35,438 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand 5 states. [2018-04-11 10:04:35,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:35,495 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2018-04-11 10:04:35,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 10:04:35,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-04-11 10:04:35,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:35,496 INFO L225 Difference]: With dead ends: 82 [2018-04-11 10:04:35,496 INFO L226 Difference]: Without dead ends: 82 [2018-04-11 10:04:35,496 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:04:35,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-11 10:04:35,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-04-11 10:04:35,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-11 10:04:35,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2018-04-11 10:04:35,502 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 17 [2018-04-11 10:04:35,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:35,502 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2018-04-11 10:04:35,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 10:04:35,502 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2018-04-11 10:04:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 10:04:35,503 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:35,503 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:35,503 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:35,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1872573657, now seen corresponding path program 1 times [2018-04-11 10:04:35,503 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:35,503 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:35,504 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:35,504 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:35,516 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:35,606 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:35,606 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 10:04:35,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 10:04:35,607 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 10:04:35,607 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-04-11 10:04:35,607 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 8 states. [2018-04-11 10:04:35,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:35,675 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2018-04-11 10:04:35,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 10:04:35,676 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-04-11 10:04:35,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:35,676 INFO L225 Difference]: With dead ends: 81 [2018-04-11 10:04:35,676 INFO L226 Difference]: Without dead ends: 81 [2018-04-11 10:04:35,677 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-04-11 10:04:35,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-04-11 10:04:35,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-04-11 10:04:35,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-04-11 10:04:35,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2018-04-11 10:04:35,680 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 17 [2018-04-11 10:04:35,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:35,680 INFO L459 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2018-04-11 10:04:35,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 10:04:35,680 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2018-04-11 10:04:35,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 10:04:35,681 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:35,681 INFO L355 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] [2018-04-11 10:04:35,681 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:35,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1417476355, now seen corresponding path program 1 times [2018-04-11 10:04:35,681 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:35,681 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:35,681 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:35,682 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:35,692 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:35,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:35,723 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:35,723 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 10:04:35,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 10:04:35,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 10:04:35,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 10:04:35,724 INFO L87 Difference]: Start difference. First operand 81 states and 91 transitions. Second operand 7 states. [2018-04-11 10:04:35,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:35,811 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2018-04-11 10:04:35,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 10:04:35,811 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-04-11 10:04:35,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:35,812 INFO L225 Difference]: With dead ends: 80 [2018-04-11 10:04:35,812 INFO L226 Difference]: Without dead ends: 80 [2018-04-11 10:04:35,812 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-04-11 10:04:35,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-04-11 10:04:35,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-04-11 10:04:35,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-04-11 10:04:35,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2018-04-11 10:04:35,816 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 23 [2018-04-11 10:04:35,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:35,817 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2018-04-11 10:04:35,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 10:04:35,817 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2018-04-11 10:04:35,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 10:04:35,818 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:35,818 INFO L355 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] [2018-04-11 10:04:35,818 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:35,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1417476356, now seen corresponding path program 1 times [2018-04-11 10:04:35,818 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:35,818 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:35,819 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:35,819 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:35,832 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:35,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:35,910 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:35,910 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-11 10:04:35,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 10:04:35,911 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 10:04:35,911 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 10:04:35,911 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand 10 states. [2018-04-11 10:04:36,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:36,060 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2018-04-11 10:04:36,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 10:04:36,060 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-04-11 10:04:36,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:36,062 INFO L225 Difference]: With dead ends: 104 [2018-04-11 10:04:36,062 INFO L226 Difference]: Without dead ends: 104 [2018-04-11 10:04:36,063 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2018-04-11 10:04:36,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-04-11 10:04:36,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 94. [2018-04-11 10:04:36,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-04-11 10:04:36,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 104 transitions. [2018-04-11 10:04:36,066 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 104 transitions. Word has length 23 [2018-04-11 10:04:36,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:36,066 INFO L459 AbstractCegarLoop]: Abstraction has 94 states and 104 transitions. [2018-04-11 10:04:36,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 10:04:36,066 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 104 transitions. [2018-04-11 10:04:36,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 10:04:36,067 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:36,067 INFO L355 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] [2018-04-11 10:04:36,067 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:36,067 INFO L82 PathProgramCache]: Analyzing trace with hash 396408002, now seen corresponding path program 1 times [2018-04-11 10:04:36,067 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:36,067 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:36,068 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:36,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:36,068 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:36,080 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:36,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:36,232 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:36,232 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-11 10:04:36,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 10:04:36,232 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 10:04:36,232 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-04-11 10:04:36,232 INFO L87 Difference]: Start difference. First operand 94 states and 104 transitions. Second operand 13 states. [2018-04-11 10:04:36,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:36,555 INFO L93 Difference]: Finished difference Result 104 states and 115 transitions. [2018-04-11 10:04:36,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 10:04:36,556 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2018-04-11 10:04:36,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:36,557 INFO L225 Difference]: With dead ends: 104 [2018-04-11 10:04:36,557 INFO L226 Difference]: Without dead ends: 104 [2018-04-11 10:04:36,557 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2018-04-11 10:04:36,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-04-11 10:04:36,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2018-04-11 10:04:36,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-04-11 10:04:36,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2018-04-11 10:04:36,561 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 23 [2018-04-11 10:04:36,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:36,563 INFO L459 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2018-04-11 10:04:36,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 10:04:36,563 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2018-04-11 10:04:36,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-11 10:04:36,563 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:36,564 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:36,564 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:36,564 INFO L82 PathProgramCache]: Analyzing trace with hash 989716549, now seen corresponding path program 1 times [2018-04-11 10:04:36,564 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:36,564 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:36,564 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:36,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:36,565 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:36,578 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:36,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:36,775 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:04:36,775 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:04:36,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:36,805 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:04:36,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:04:36,833 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:36,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:36,836 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 10:04:36,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 10:04:36,869 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 10:04:36,870 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:36,871 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:36,873 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:36,873 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-11 10:04:36,966 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 10:04:36,971 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 10:04:36,971 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 10:04:36,974 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:04:36,978 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:04:36,978 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:34 [2018-04-11 10:04:37,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:37,061 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:04:37,062 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 25 [2018-04-11 10:04:37,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 10:04:37,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 10:04:37,062 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2018-04-11 10:04:37,062 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand 26 states. [2018-04-11 10:04:37,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:37,790 INFO L93 Difference]: Finished difference Result 122 states and 135 transitions. [2018-04-11 10:04:37,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 10:04:37,790 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 27 [2018-04-11 10:04:37,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:37,792 INFO L225 Difference]: With dead ends: 122 [2018-04-11 10:04:37,792 INFO L226 Difference]: Without dead ends: 122 [2018-04-11 10:04:37,793 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=224, Invalid=1498, Unknown=0, NotChecked=0, Total=1722 [2018-04-11 10:04:37,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-04-11 10:04:37,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 93. [2018-04-11 10:04:37,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-04-11 10:04:37,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2018-04-11 10:04:37,799 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 27 [2018-04-11 10:04:37,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:37,799 INFO L459 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2018-04-11 10:04:37,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 10:04:37,799 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2018-04-11 10:04:37,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 10:04:37,800 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:37,800 INFO L355 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, 1, 1, 1, 1] [2018-04-11 10:04:37,800 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:37,800 INFO L82 PathProgramCache]: Analyzing trace with hash -2041517279, now seen corresponding path program 1 times [2018-04-11 10:04:37,800 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:37,800 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:37,801 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:37,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:37,801 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:37,810 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:37,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:37,856 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:37,856 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 10:04:37,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 10:04:37,856 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 10:04:37,856 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:04:37,856 INFO L87 Difference]: Start difference. First operand 93 states and 103 transitions. Second operand 6 states. [2018-04-11 10:04:38,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:38,011 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2018-04-11 10:04:38,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 10:04:38,011 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-04-11 10:04:38,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:38,012 INFO L225 Difference]: With dead ends: 92 [2018-04-11 10:04:38,012 INFO L226 Difference]: Without dead ends: 68 [2018-04-11 10:04:38,012 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-11 10:04:38,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-04-11 10:04:38,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-04-11 10:04:38,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-11 10:04:38,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2018-04-11 10:04:38,014 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 28 [2018-04-11 10:04:38,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:38,014 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2018-04-11 10:04:38,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 10:04:38,014 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2018-04-11 10:04:38,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 10:04:38,014 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:38,014 INFO L355 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, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:38,015 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:38,015 INFO L82 PathProgramCache]: Analyzing trace with hash -343838603, now seen corresponding path program 1 times [2018-04-11 10:04:38,015 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:38,015 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:38,015 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:38,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:38,015 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:38,023 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:38,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:38,058 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:38,058 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 10:04:38,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 10:04:38,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 10:04:38,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 10:04:38,058 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 6 states. [2018-04-11 10:04:38,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:38,110 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-04-11 10:04:38,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 10:04:38,110 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-04-11 10:04:38,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:38,110 INFO L225 Difference]: With dead ends: 67 [2018-04-11 10:04:38,110 INFO L226 Difference]: Without dead ends: 67 [2018-04-11 10:04:38,110 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-11 10:04:38,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-11 10:04:38,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-04-11 10:04:38,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-11 10:04:38,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2018-04-11 10:04:38,112 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 31 [2018-04-11 10:04:38,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:38,112 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2018-04-11 10:04:38,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 10:04:38,113 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2018-04-11 10:04:38,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 10:04:38,113 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:38,113 INFO L355 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, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:38,113 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:38,113 INFO L82 PathProgramCache]: Analyzing trace with hash -343838602, now seen corresponding path program 1 times [2018-04-11 10:04:38,114 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:38,114 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:38,114 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:38,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:38,115 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:38,123 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:38,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:38,186 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:38,186 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 10:04:38,187 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 10:04:38,187 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 10:04:38,187 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-11 10:04:38,187 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 9 states. [2018-04-11 10:04:38,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:38,279 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2018-04-11 10:04:38,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 10:04:38,279 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-04-11 10:04:38,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:38,280 INFO L225 Difference]: With dead ends: 72 [2018-04-11 10:04:38,280 INFO L226 Difference]: Without dead ends: 72 [2018-04-11 10:04:38,280 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-04-11 10:04:38,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-11 10:04:38,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2018-04-11 10:04:38,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-04-11 10:04:38,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2018-04-11 10:04:38,282 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 31 [2018-04-11 10:04:38,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:38,282 INFO L459 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2018-04-11 10:04:38,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 10:04:38,283 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2018-04-11 10:04:38,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 10:04:38,283 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:38,283 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:38,283 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:38,284 INFO L82 PathProgramCache]: Analyzing trace with hash 132134015, now seen corresponding path program 1 times [2018-04-11 10:04:38,284 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:38,284 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:38,284 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:38,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:38,284 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:38,295 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:38,477 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:38,477 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-04-11 10:04:38,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 10:04:38,478 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 10:04:38,478 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-04-11 10:04:38,478 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand 13 states. [2018-04-11 10:04:38,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:38,685 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2018-04-11 10:04:38,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 10:04:38,686 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2018-04-11 10:04:38,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:38,686 INFO L225 Difference]: With dead ends: 89 [2018-04-11 10:04:38,686 INFO L226 Difference]: Without dead ends: 70 [2018-04-11 10:04:38,687 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2018-04-11 10:04:38,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-04-11 10:04:38,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-04-11 10:04:38,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-04-11 10:04:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 76 transitions. [2018-04-11 10:04:38,689 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 76 transitions. Word has length 36 [2018-04-11 10:04:38,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:38,689 INFO L459 AbstractCegarLoop]: Abstraction has 70 states and 76 transitions. [2018-04-11 10:04:38,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 10:04:38,689 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 76 transitions. [2018-04-11 10:04:38,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 10:04:38,690 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:38,690 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:38,690 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:38,690 INFO L82 PathProgramCache]: Analyzing trace with hash 154766269, now seen corresponding path program 1 times [2018-04-11 10:04:38,690 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:38,690 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:38,691 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:38,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:38,691 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:38,700 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:38,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:38,901 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:04:38,901 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:04:38,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:38,923 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:04:38,927 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:04:38,928 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:38,930 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:38,930 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 10:04:38,956 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:04:38,957 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:04:38,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:04:38,957 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:38,959 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:38,959 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-11 10:04:38,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-11 10:04:38,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-11 10:04:38,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:38,984 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:38,988 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:04:38,988 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-11 10:04:39,024 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-04-11 10:04:39,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-11 10:04:39,026 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:39,029 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:04:39,034 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-11 10:04:39,034 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-11 10:04:43,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 52 [2018-04-11 10:04:43,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 42 [2018-04-11 10:04:43,380 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 10:04:43,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2018-04-11 10:04:43,454 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:43,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2018-04-11 10:04:43,456 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:43,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2018-04-11 10:04:43,496 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:43,508 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-04-11 10:04:43,509 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:43,541 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2018-04-11 10:04:43,541 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:43,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 40 [2018-04-11 10:04:43,587 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-04-11 10:04:43,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 39 [2018-04-11 10:04:43,622 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-04-11 10:04:43,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2018-04-11 10:04:43,665 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-04-11 10:04:43,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-04-11 10:04:43,692 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 10:04:43,714 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-11 10:04:43,745 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:04:43,745 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 9 variables, input treesize:72, output treesize:29 [2018-04-11 10:04:43,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:43,838 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:04:43,839 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 27 [2018-04-11 10:04:43,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 10:04:43,839 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 10:04:43,839 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=681, Unknown=2, NotChecked=0, Total=756 [2018-04-11 10:04:43,839 INFO L87 Difference]: Start difference. First operand 70 states and 76 transitions. Second operand 28 states. [2018-04-11 10:04:50,895 WARN L151 SmtUtils]: Spent 124ms on a formula simplification. DAG size of input: 93 DAG size of output 66 [2018-04-11 10:04:53,239 WARN L151 SmtUtils]: Spent 2036ms on a formula simplification. DAG size of input: 54 DAG size of output 45 [2018-04-11 10:04:59,387 WARN L151 SmtUtils]: Spent 2016ms on a formula simplification. DAG size of input: 48 DAG size of output 39 [2018-04-11 10:04:59,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:59,561 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2018-04-11 10:04:59,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 10:04:59,562 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 36 [2018-04-11 10:04:59,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:59,562 INFO L225 Difference]: With dead ends: 81 [2018-04-11 10:04:59,562 INFO L226 Difference]: Without dead ends: 81 [2018-04-11 10:04:59,563 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=225, Invalid=1492, Unknown=5, NotChecked=0, Total=1722 [2018-04-11 10:04:59,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-04-11 10:04:59,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2018-04-11 10:04:59,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-11 10:04:59,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2018-04-11 10:04:59,566 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 36 [2018-04-11 10:04:59,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:59,566 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2018-04-11 10:04:59,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 10:04:59,566 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2018-04-11 10:04:59,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-11 10:04:59,567 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:59,567 INFO L355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:04:59,567 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:59,568 INFO L82 PathProgramCache]: Analyzing trace with hash 2139102706, now seen corresponding path program 1 times [2018-04-11 10:04:59,568 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:59,568 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:59,568 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:59,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:59,568 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:59,581 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:04:59,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:04:59,648 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:04:59,648 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 10:04:59,648 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 10:04:59,648 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 10:04:59,649 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-04-11 10:04:59,649 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 8 states. [2018-04-11 10:04:59,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:04:59,719 INFO L93 Difference]: Finished difference Result 113 states and 125 transitions. [2018-04-11 10:04:59,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 10:04:59,720 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2018-04-11 10:04:59,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:04:59,721 INFO L225 Difference]: With dead ends: 113 [2018-04-11 10:04:59,721 INFO L226 Difference]: Without dead ends: 113 [2018-04-11 10:04:59,721 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-04-11 10:04:59,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-04-11 10:04:59,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2018-04-11 10:04:59,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-04-11 10:04:59,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 124 transitions. [2018-04-11 10:04:59,724 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 124 transitions. Word has length 39 [2018-04-11 10:04:59,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:04:59,724 INFO L459 AbstractCegarLoop]: Abstraction has 111 states and 124 transitions. [2018-04-11 10:04:59,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 10:04:59,725 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 124 transitions. [2018-04-11 10:04:59,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-11 10:04:59,725 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:04:59,725 INFO L355 BasicCegarLoop]: trace histogram [3, 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] [2018-04-11 10:04:59,725 INFO L408 AbstractCegarLoop]: === Iteration 17 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:04:59,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1227427224, now seen corresponding path program 2 times [2018-04-11 10:04:59,726 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:04:59,726 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:04:59,726 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:59,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:04:59,726 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:04:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:04:59,737 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:00,117 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:00,117 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:00,117 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:00,122 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:05:00,139 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 10:05:00,139 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:05:00,141 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:00,145 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:00,145 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:00,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:00,149 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:00,151 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:00,151 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:05:00,181 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:00,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:05:00,182 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:00,188 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:00,188 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:00,189 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:05:00,189 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:00,192 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:00,192 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 10:05:00,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 10:05:00,226 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 10:05:00,226 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:00,227 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:00,233 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:05:00,233 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 10:05:00,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-11 10:05:00,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 10:05:00,265 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:00,268 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:00,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-11 10:05:00,273 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:35 [2018-04-11 10:05:04,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2018-04-11 10:05:04,660 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 15 [2018-04-11 10:05:04,661 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 10:05:04,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 1 [2018-04-11 10:05:04,667 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:04,670 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:05:04,678 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:05:04,678 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:52, output treesize:37 [2018-04-11 10:05:04,757 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:04,774 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:05:04,774 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 29 [2018-04-11 10:05:04,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 10:05:04,774 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 10:05:04,775 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=793, Unknown=2, NotChecked=0, Total=870 [2018-04-11 10:05:04,775 INFO L87 Difference]: Start difference. First operand 111 states and 124 transitions. Second operand 30 states. [2018-04-11 10:05:05,933 WARN L151 SmtUtils]: Spent 274ms on a formula simplification. DAG size of input: 74 DAG size of output 55 [2018-04-11 10:05:06,108 WARN L151 SmtUtils]: Spent 132ms on a formula simplification. DAG size of input: 78 DAG size of output 61 [2018-04-11 10:05:08,509 WARN L151 SmtUtils]: Spent 2061ms on a formula simplification. DAG size of input: 72 DAG size of output 59 [2018-04-11 10:05:08,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:08,714 INFO L93 Difference]: Finished difference Result 114 states and 126 transitions. [2018-04-11 10:05:08,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-11 10:05:08,714 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 41 [2018-04-11 10:05:08,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:08,715 INFO L225 Difference]: With dead ends: 114 [2018-04-11 10:05:08,715 INFO L226 Difference]: Without dead ends: 83 [2018-04-11 10:05:08,715 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=267, Invalid=1801, Unknown=2, NotChecked=0, Total=2070 [2018-04-11 10:05:08,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-11 10:05:08,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 69. [2018-04-11 10:05:08,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-11 10:05:08,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2018-04-11 10:05:08,717 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 41 [2018-04-11 10:05:08,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:08,717 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2018-04-11 10:05:08,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-11 10:05:08,717 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2018-04-11 10:05:08,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-11 10:05:08,718 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:08,718 INFO L355 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, 1, 1, 1, 1, 1, 1] [2018-04-11 10:05:08,718 INFO L408 AbstractCegarLoop]: === Iteration 18 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:08,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1135874677, now seen corresponding path program 1 times [2018-04-11 10:05:08,718 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:08,718 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:08,718 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:08,719 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:05:08,719 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:08,730 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:08,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 10:05:08,918 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:05:08,918 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-04-11 10:05:08,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 10:05:08,918 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 10:05:08,919 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2018-04-11 10:05:08,919 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 16 states. [2018-04-11 10:05:09,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:09,254 INFO L93 Difference]: Finished difference Result 125 states and 137 transitions. [2018-04-11 10:05:09,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 10:05:09,254 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 43 [2018-04-11 10:05:09,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:09,255 INFO L225 Difference]: With dead ends: 125 [2018-04-11 10:05:09,255 INFO L226 Difference]: Without dead ends: 125 [2018-04-11 10:05:09,255 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=551, Unknown=0, NotChecked=0, Total=650 [2018-04-11 10:05:09,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-04-11 10:05:09,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 100. [2018-04-11 10:05:09,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-04-11 10:05:09,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 126 transitions. [2018-04-11 10:05:09,257 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 126 transitions. Word has length 43 [2018-04-11 10:05:09,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:09,257 INFO L459 AbstractCegarLoop]: Abstraction has 100 states and 126 transitions. [2018-04-11 10:05:09,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 10:05:09,257 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 126 transitions. [2018-04-11 10:05:09,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-11 10:05:09,258 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:09,258 INFO L355 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, 1, 1, 1, 1, 1, 1] [2018-04-11 10:05:09,258 INFO L408 AbstractCegarLoop]: === Iteration 19 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:09,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1135874676, now seen corresponding path program 1 times [2018-04-11 10:05:09,258 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:09,258 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:09,258 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:09,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:09,258 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:09,263 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:09,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 10:05:09,314 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:05:09,314 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 10:05:09,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 10:05:09,315 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 10:05:09,315 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 10:05:09,315 INFO L87 Difference]: Start difference. First operand 100 states and 126 transitions. Second operand 7 states. [2018-04-11 10:05:09,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:09,397 INFO L93 Difference]: Finished difference Result 98 states and 120 transitions. [2018-04-11 10:05:09,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 10:05:09,397 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2018-04-11 10:05:09,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:09,398 INFO L225 Difference]: With dead ends: 98 [2018-04-11 10:05:09,398 INFO L226 Difference]: Without dead ends: 98 [2018-04-11 10:05:09,398 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-04-11 10:05:09,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-04-11 10:05:09,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-04-11 10:05:09,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-04-11 10:05:09,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 120 transitions. [2018-04-11 10:05:09,401 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 120 transitions. Word has length 43 [2018-04-11 10:05:09,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:09,401 INFO L459 AbstractCegarLoop]: Abstraction has 98 states and 120 transitions. [2018-04-11 10:05:09,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 10:05:09,401 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 120 transitions. [2018-04-11 10:05:09,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-11 10:05:09,402 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:09,402 INFO L355 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:05:09,402 INFO L408 AbstractCegarLoop]: === Iteration 20 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:09,402 INFO L82 PathProgramCache]: Analyzing trace with hash 653871061, now seen corresponding path program 1 times [2018-04-11 10:05:09,402 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:09,402 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:09,403 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:09,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:09,403 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:09,410 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:09,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-04-11 10:05:09,448 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:09,448 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:09,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:09,476 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 10:05:09,562 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 10:05:09,563 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2018-04-11 10:05:09,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 10:05:09,563 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 10:05:09,563 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-04-11 10:05:09,563 INFO L87 Difference]: Start difference. First operand 98 states and 120 transitions. Second operand 11 states. [2018-04-11 10:05:09,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:09,655 INFO L93 Difference]: Finished difference Result 97 states and 117 transitions. [2018-04-11 10:05:09,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 10:05:09,655 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2018-04-11 10:05:09,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:09,655 INFO L225 Difference]: With dead ends: 97 [2018-04-11 10:05:09,655 INFO L226 Difference]: Without dead ends: 97 [2018-04-11 10:05:09,656 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2018-04-11 10:05:09,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-04-11 10:05:09,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-04-11 10:05:09,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-04-11 10:05:09,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 117 transitions. [2018-04-11 10:05:09,658 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 117 transitions. Word has length 45 [2018-04-11 10:05:09,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:09,658 INFO L459 AbstractCegarLoop]: Abstraction has 97 states and 117 transitions. [2018-04-11 10:05:09,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 10:05:09,658 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 117 transitions. [2018-04-11 10:05:09,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-11 10:05:09,659 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:09,659 INFO L355 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:05:09,659 INFO L408 AbstractCegarLoop]: === Iteration 21 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:09,659 INFO L82 PathProgramCache]: Analyzing trace with hash 653871062, now seen corresponding path program 1 times [2018-04-11 10:05:09,659 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:09,659 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:09,660 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:09,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:09,660 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:09,670 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:09,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:09,798 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:09,798 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:09,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:09,827 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:09,960 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:05:09,961 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21 [2018-04-11 10:05:09,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 10:05:09,961 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 10:05:09,961 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2018-04-11 10:05:09,961 INFO L87 Difference]: Start difference. First operand 97 states and 117 transitions. Second operand 22 states. [2018-04-11 10:05:10,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:10,227 INFO L93 Difference]: Finished difference Result 141 states and 170 transitions. [2018-04-11 10:05:10,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 10:05:10,227 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 45 [2018-04-11 10:05:10,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:10,228 INFO L225 Difference]: With dead ends: 141 [2018-04-11 10:05:10,228 INFO L226 Difference]: Without dead ends: 141 [2018-04-11 10:05:10,228 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=933, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 10:05:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-04-11 10:05:10,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 118. [2018-04-11 10:05:10,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-04-11 10:05:10,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 149 transitions. [2018-04-11 10:05:10,232 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 149 transitions. Word has length 45 [2018-04-11 10:05:10,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:10,232 INFO L459 AbstractCegarLoop]: Abstraction has 118 states and 149 transitions. [2018-04-11 10:05:10,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 10:05:10,232 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 149 transitions. [2018-04-11 10:05:10,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 10:05:10,233 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:10,233 INFO L355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:05:10,233 INFO L408 AbstractCegarLoop]: === Iteration 22 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:10,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1304865494, now seen corresponding path program 1 times [2018-04-11 10:05:10,233 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:10,233 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:10,234 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:10,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:10,234 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:10,241 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:10,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 10:05:10,288 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:05:10,288 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 10:05:10,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 10:05:10,288 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 10:05:10,288 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-04-11 10:05:10,289 INFO L87 Difference]: Start difference. First operand 118 states and 149 transitions. Second operand 8 states. [2018-04-11 10:05:10,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:10,375 INFO L93 Difference]: Finished difference Result 117 states and 145 transitions. [2018-04-11 10:05:10,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 10:05:10,375 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2018-04-11 10:05:10,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:10,377 INFO L225 Difference]: With dead ends: 117 [2018-04-11 10:05:10,377 INFO L226 Difference]: Without dead ends: 117 [2018-04-11 10:05:10,377 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-04-11 10:05:10,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-04-11 10:05:10,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-04-11 10:05:10,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-04-11 10:05:10,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 145 transitions. [2018-04-11 10:05:10,382 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 145 transitions. Word has length 47 [2018-04-11 10:05:10,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:10,382 INFO L459 AbstractCegarLoop]: Abstraction has 117 states and 145 transitions. [2018-04-11 10:05:10,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 10:05:10,383 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 145 transitions. [2018-04-11 10:05:10,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 10:05:10,383 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:10,383 INFO L355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:05:10,383 INFO L408 AbstractCegarLoop]: === Iteration 23 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:10,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1304865495, now seen corresponding path program 1 times [2018-04-11 10:05:10,383 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:10,383 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:10,384 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:10,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:10,384 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:10,399 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 10:05:10,534 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 10:05:10,534 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-11 10:05:10,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 10:05:10,534 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 10:05:10,534 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-04-11 10:05:10,534 INFO L87 Difference]: Start difference. First operand 117 states and 145 transitions. Second operand 12 states. [2018-04-11 10:05:10,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:10,645 INFO L93 Difference]: Finished difference Result 119 states and 143 transitions. [2018-04-11 10:05:10,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 10:05:10,645 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2018-04-11 10:05:10,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:10,646 INFO L225 Difference]: With dead ends: 119 [2018-04-11 10:05:10,646 INFO L226 Difference]: Without dead ends: 119 [2018-04-11 10:05:10,646 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-04-11 10:05:10,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-04-11 10:05:10,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 114. [2018-04-11 10:05:10,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-04-11 10:05:10,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 138 transitions. [2018-04-11 10:05:10,649 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 138 transitions. Word has length 47 [2018-04-11 10:05:10,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:10,649 INFO L459 AbstractCegarLoop]: Abstraction has 114 states and 138 transitions. [2018-04-11 10:05:10,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 10:05:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 138 transitions. [2018-04-11 10:05:10,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-11 10:05:10,650 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:10,650 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-11 10:05:10,650 INFO L408 AbstractCegarLoop]: === Iteration 24 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:10,650 INFO L82 PathProgramCache]: Analyzing trace with hash -504893548, now seen corresponding path program 1 times [2018-04-11 10:05:10,650 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:10,650 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:10,651 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:10,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:10,651 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:10,661 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:10,999 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 10:05:11,000 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:11,000 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:11,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:11,022 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:11,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:11,027 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:11,030 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:11,031 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:11,033 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:11,033 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:05:11,054 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:11,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:05:11,056 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:11,064 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:11,064 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:11,065 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:05:11,065 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:11,068 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:11,068 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 10:05:11,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 10:05:11,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 10:05:11,104 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:11,105 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:11,108 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:11,108 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-11 10:05:11,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-04-11 10:05:11,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 10:05:11,130 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:11,133 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:11,137 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 10:05:11,137 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2018-04-11 10:05:11,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2018-04-11 10:05:11,388 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 14 [2018-04-11 10:05:11,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 10:05:11,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 1 [2018-04-11 10:05:11,393 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:11,396 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:05:11,401 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:05:11,401 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:45, output treesize:32 [2018-04-11 10:05:11,485 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 10:05:11,502 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:05:11,503 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 29 [2018-04-11 10:05:11,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 10:05:11,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 10:05:11,503 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2018-04-11 10:05:11,503 INFO L87 Difference]: Start difference. First operand 114 states and 138 transitions. Second operand 30 states. [2018-04-11 10:05:12,333 WARN L151 SmtUtils]: Spent 564ms on a formula simplification. DAG size of input: 48 DAG size of output 32 [2018-04-11 10:05:16,351 WARN L151 SmtUtils]: Spent 3001ms on a formula simplification. DAG size of input: 56 DAG size of output 52 [2018-04-11 10:05:19,769 WARN L151 SmtUtils]: Spent 3389ms on a formula simplification. DAG size of input: 47 DAG size of output 45 [2018-04-11 10:05:24,180 WARN L148 SmtUtils]: Spent 1858ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-11 10:05:28,279 WARN L151 SmtUtils]: Spent 4040ms on a formula simplification. DAG size of input: 52 DAG size of output 50 [2018-04-11 10:05:31,613 WARN L151 SmtUtils]: Spent 3314ms on a formula simplification. DAG size of input: 56 DAG size of output 55 [2018-04-11 10:05:31,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:31,926 INFO L93 Difference]: Finished difference Result 133 states and 152 transitions. [2018-04-11 10:05:31,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 10:05:31,926 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 48 [2018-04-11 10:05:31,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:31,927 INFO L225 Difference]: With dead ends: 133 [2018-04-11 10:05:31,927 INFO L226 Difference]: Without dead ends: 133 [2018-04-11 10:05:31,928 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=261, Invalid=1995, Unknown=0, NotChecked=0, Total=2256 [2018-04-11 10:05:31,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-04-11 10:05:31,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 76. [2018-04-11 10:05:31,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-04-11 10:05:31,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2018-04-11 10:05:31,930 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 48 [2018-04-11 10:05:31,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:31,931 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2018-04-11 10:05:31,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-11 10:05:31,931 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2018-04-11 10:05:31,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-11 10:05:31,931 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:31,931 INFO L355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:05:31,931 INFO L408 AbstractCegarLoop]: === Iteration 25 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:31,932 INFO L82 PathProgramCache]: Analyzing trace with hash -154986537, now seen corresponding path program 1 times [2018-04-11 10:05:31,932 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:31,932 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:31,932 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:31,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:31,933 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:31,940 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-04-11 10:05:31,979 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:31,979 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:31,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:32,007 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:32,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 10:05:32,072 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 10:05:32,072 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2018-04-11 10:05:32,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 10:05:32,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 10:05:32,072 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-04-11 10:05:32,072 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 11 states. [2018-04-11 10:05:32,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:32,144 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2018-04-11 10:05:32,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 10:05:32,145 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2018-04-11 10:05:32,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:32,145 INFO L225 Difference]: With dead ends: 75 [2018-04-11 10:05:32,145 INFO L226 Difference]: Without dead ends: 75 [2018-04-11 10:05:32,145 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2018-04-11 10:05:32,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-04-11 10:05:32,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-04-11 10:05:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-11 10:05:32,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2018-04-11 10:05:32,147 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 49 [2018-04-11 10:05:32,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:32,147 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2018-04-11 10:05:32,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 10:05:32,147 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2018-04-11 10:05:32,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-11 10:05:32,147 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:32,147 INFO L355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:05:32,147 INFO L408 AbstractCegarLoop]: === Iteration 26 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:32,148 INFO L82 PathProgramCache]: Analyzing trace with hash -154986536, now seen corresponding path program 1 times [2018-04-11 10:05:32,148 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:32,148 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:32,148 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:32,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:32,149 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:32,157 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:32,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:32,281 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:32,283 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:32,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:32,314 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:32,468 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:05:32,469 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 23 [2018-04-11 10:05:32,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 10:05:32,469 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 10:05:32,469 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2018-04-11 10:05:32,469 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand 24 states. [2018-04-11 10:05:32,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:32,833 INFO L93 Difference]: Finished difference Result 106 states and 118 transitions. [2018-04-11 10:05:32,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 10:05:32,833 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 49 [2018-04-11 10:05:32,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:32,833 INFO L225 Difference]: With dead ends: 106 [2018-04-11 10:05:32,833 INFO L226 Difference]: Without dead ends: 106 [2018-04-11 10:05:32,834 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=1185, Unknown=0, NotChecked=0, Total=1332 [2018-04-11 10:05:32,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-04-11 10:05:32,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2018-04-11 10:05:32,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-11 10:05:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2018-04-11 10:05:32,836 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 49 [2018-04-11 10:05:32,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:32,836 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2018-04-11 10:05:32,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 10:05:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2018-04-11 10:05:32,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-11 10:05:32,836 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:32,837 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-11 10:05:32,837 INFO L408 AbstractCegarLoop]: === Iteration 27 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:32,837 INFO L82 PathProgramCache]: Analyzing trace with hash -446349253, now seen corresponding path program 1 times [2018-04-11 10:05:32,837 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:32,837 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:32,837 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:32,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:32,837 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:32,845 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:32,935 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:32,935 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:32,935 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:32,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:32,967 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:32,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:32,970 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:32,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:32,974 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:32,978 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:32,978 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:05:33,004 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:33,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:05:33,005 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:33,011 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:33,012 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:33,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:05:33,013 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:33,016 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:33,016 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 10:05:33,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 10:05:33,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 10:05:33,041 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:33,042 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:33,045 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:33,045 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-11 10:05:33,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-04-11 10:05:33,062 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 10:05:33,062 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:33,065 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:33,081 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:05:33,082 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 10:05:33,575 WARN L151 SmtUtils]: Spent 185ms on a formula simplification. DAG size of input: 42 DAG size of output 25 [2018-04-11 10:05:34,043 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2018-04-11 10:05:34,049 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 10:05:34,050 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 10:05:34,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-04-11 10:05:34,060 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:34,065 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:05:34,079 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:05:34,079 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:60, output treesize:42 [2018-04-11 10:05:34,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:34,178 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:05:34,179 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 22] total 31 [2018-04-11 10:05:34,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 10:05:34,179 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 10:05:34,179 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=852, Unknown=0, NotChecked=0, Total=930 [2018-04-11 10:05:34,179 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand 31 states. [2018-04-11 10:05:37,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:37,607 INFO L93 Difference]: Finished difference Result 135 states and 149 transitions. [2018-04-11 10:05:37,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-11 10:05:37,607 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 52 [2018-04-11 10:05:37,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:37,608 INFO L225 Difference]: With dead ends: 135 [2018-04-11 10:05:37,608 INFO L226 Difference]: Without dead ends: 96 [2018-04-11 10:05:37,609 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=367, Invalid=3793, Unknown=0, NotChecked=0, Total=4160 [2018-04-11 10:05:37,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-04-11 10:05:37,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 83. [2018-04-11 10:05:37,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-11 10:05:37,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2018-04-11 10:05:37,610 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 52 [2018-04-11 10:05:37,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:37,610 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2018-04-11 10:05:37,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 10:05:37,611 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2018-04-11 10:05:37,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-04-11 10:05:37,611 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:37,611 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-04-11 10:05:37,611 INFO L408 AbstractCegarLoop]: === Iteration 28 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:37,611 INFO L82 PathProgramCache]: Analyzing trace with hash -34958984, now seen corresponding path program 2 times [2018-04-11 10:05:37,611 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:37,611 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:37,612 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:37,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:37,612 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:37,620 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:37,732 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:37,732 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:37,732 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:37,743 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:05:37,798 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 10:05:37,798 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:05:37,801 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:37,804 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:37,804 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:37,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:37,811 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:37,815 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:37,815 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:05:37,844 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:37,844 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:37,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:05:37,845 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:37,850 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:05:37,850 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:37,854 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:37,854 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-11 10:05:37,882 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 10:05:37,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 10:05:37,883 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:37,884 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:37,889 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:37,889 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2018-04-11 10:05:37,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-11 10:05:37,912 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 10:05:37,912 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:37,915 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:37,921 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:37,921 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2018-04-11 10:05:38,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2018-04-11 10:05:38,732 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-04-11 10:05:38,732 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:38,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 10:05:38,742 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 10:05:38,746 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:05:38,759 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 10:05:38,760 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:68, output treesize:81 [2018-04-11 10:05:38,896 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:38,914 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:05:38,914 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 24] total 35 [2018-04-11 10:05:38,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-11 10:05:38,914 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-11 10:05:38,915 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1102, Unknown=0, NotChecked=0, Total=1190 [2018-04-11 10:05:38,915 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand 35 states. [2018-04-11 10:05:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:42,427 INFO L93 Difference]: Finished difference Result 176 states and 196 transitions. [2018-04-11 10:05:42,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-04-11 10:05:42,427 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 65 [2018-04-11 10:05:42,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:42,428 INFO L225 Difference]: With dead ends: 176 [2018-04-11 10:05:42,428 INFO L226 Difference]: Without dead ends: 117 [2018-04-11 10:05:42,429 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=380, Invalid=4590, Unknown=0, NotChecked=0, Total=4970 [2018-04-11 10:05:42,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-04-11 10:05:42,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 93. [2018-04-11 10:05:42,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-04-11 10:05:42,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2018-04-11 10:05:42,431 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 65 [2018-04-11 10:05:42,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:42,431 INFO L459 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2018-04-11 10:05:42,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-11 10:05:42,432 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2018-04-11 10:05:42,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-11 10:05:42,432 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:42,432 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2018-04-11 10:05:42,432 INFO L408 AbstractCegarLoop]: === Iteration 29 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:42,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1058278372, now seen corresponding path program 1 times [2018-04-11 10:05:42,433 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:42,433 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:42,433 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:42,433 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:05:42,433 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:42,445 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:42,731 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:42,731 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:42,731 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:42,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:42,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:42,781 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:42,810 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:42,827 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:05:42,828 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 19 [2018-04-11 10:05:42,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 10:05:42,828 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 10:05:42,828 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2018-04-11 10:05:42,829 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand 20 states. [2018-04-11 10:05:43,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:43,150 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2018-04-11 10:05:43,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 10:05:43,150 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 71 [2018-04-11 10:05:43,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:43,150 INFO L225 Difference]: With dead ends: 112 [2018-04-11 10:05:43,150 INFO L226 Difference]: Without dead ends: 112 [2018-04-11 10:05:43,151 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2018-04-11 10:05:43,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-04-11 10:05:43,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 95. [2018-04-11 10:05:43,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-04-11 10:05:43,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions. [2018-04-11 10:05:43,153 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 71 [2018-04-11 10:05:43,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:43,153 INFO L459 AbstractCegarLoop]: Abstraction has 95 states and 107 transitions. [2018-04-11 10:05:43,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 10:05:43,153 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions. [2018-04-11 10:05:43,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-11 10:05:43,154 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:43,154 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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] [2018-04-11 10:05:43,154 INFO L408 AbstractCegarLoop]: === Iteration 30 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:43,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1017499362, now seen corresponding path program 1 times [2018-04-11 10:05:43,154 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:43,154 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:43,155 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:43,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:43,155 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:43,168 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:43,443 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:43,443 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:43,444 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:43,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:43,487 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:43,520 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 18 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:43,539 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:05:43,539 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 20 [2018-04-11 10:05:43,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 10:05:43,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 10:05:43,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2018-04-11 10:05:43,540 INFO L87 Difference]: Start difference. First operand 95 states and 107 transitions. Second operand 21 states. [2018-04-11 10:05:43,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:43,866 INFO L93 Difference]: Finished difference Result 127 states and 142 transitions. [2018-04-11 10:05:43,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 10:05:43,866 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 75 [2018-04-11 10:05:43,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:43,867 INFO L225 Difference]: With dead ends: 127 [2018-04-11 10:05:43,867 INFO L226 Difference]: Without dead ends: 127 [2018-04-11 10:05:43,868 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2018-04-11 10:05:43,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-04-11 10:05:43,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 96. [2018-04-11 10:05:43,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-04-11 10:05:43,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2018-04-11 10:05:43,869 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 75 [2018-04-11 10:05:43,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:43,869 INFO L459 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2018-04-11 10:05:43,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 10:05:43,870 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2018-04-11 10:05:43,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 10:05:43,870 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:43,870 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:05:43,870 INFO L408 AbstractCegarLoop]: === Iteration 31 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:43,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1223383349, now seen corresponding path program 3 times [2018-04-11 10:05:43,870 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:43,870 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:43,871 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:43,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:43,871 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:43,884 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:44,054 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:44,054 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:44,059 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 10:05:44,117 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-11 10:05:44,117 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:05:44,125 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:44,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:44,129 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:44,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:44,135 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:44,139 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:44,139 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:05:44,171 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:44,172 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:44,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:05:44,172 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:44,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:05:44,179 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:44,184 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:44,184 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-11 10:05:44,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 10:05:44,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 10:05:44,224 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:44,226 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:44,231 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:44,231 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2018-04-11 10:05:44,278 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-11 10:05:44,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 10:05:44,280 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:44,285 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:44,301 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:44,301 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:39, output treesize:35 [2018-04-11 10:05:45,187 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2018-04-11 10:05:45,189 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-04-11 10:05:45,189 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:45,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 10:05:45,200 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 10:05:45,205 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:05:45,214 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-04-11 10:05:45,214 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:52, output treesize:52 [2018-04-11 10:05:45,389 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:45,407 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:05:45,407 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 29] total 42 [2018-04-11 10:05:45,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-11 10:05:45,407 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-11 10:05:45,407 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1617, Unknown=0, NotChecked=0, Total=1722 [2018-04-11 10:05:45,408 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand 42 states. [2018-04-11 10:05:49,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:49,104 INFO L93 Difference]: Finished difference Result 333 states and 380 transitions. [2018-04-11 10:05:49,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-04-11 10:05:49,104 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 78 [2018-04-11 10:05:49,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:49,105 INFO L225 Difference]: With dead ends: 333 [2018-04-11 10:05:49,105 INFO L226 Difference]: Without dead ends: 193 [2018-04-11 10:05:49,106 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1639 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=526, Invalid=8216, Unknown=0, NotChecked=0, Total=8742 [2018-04-11 10:05:49,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-04-11 10:05:49,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 157. [2018-04-11 10:05:49,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-04-11 10:05:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 187 transitions. [2018-04-11 10:05:49,110 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 187 transitions. Word has length 78 [2018-04-11 10:05:49,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:49,110 INFO L459 AbstractCegarLoop]: Abstraction has 157 states and 187 transitions. [2018-04-11 10:05:49,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-11 10:05:49,110 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 187 transitions. [2018-04-11 10:05:49,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-11 10:05:49,111 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:49,111 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:05:49,111 INFO L408 AbstractCegarLoop]: === Iteration 32 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:49,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1276287347, now seen corresponding path program 2 times [2018-04-11 10:05:49,112 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:49,112 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:49,112 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:49,112 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:05:49,112 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:49,125 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:49,345 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 32 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:49,345 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:49,345 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:49,350 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:05:49,389 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 10:05:49,390 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:05:49,393 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:49,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:49,395 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:49,400 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:49,400 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 10:05:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 32 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:05:49,595 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:05:49,595 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 29 [2018-04-11 10:05:49,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 10:05:49,596 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 10:05:49,596 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2018-04-11 10:05:49,596 INFO L87 Difference]: Start difference. First operand 157 states and 187 transitions. Second operand 30 states. [2018-04-11 10:05:50,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:05:50,111 INFO L93 Difference]: Finished difference Result 213 states and 247 transitions. [2018-04-11 10:05:50,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 10:05:50,111 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 84 [2018-04-11 10:05:50,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:05:50,112 INFO L225 Difference]: With dead ends: 213 [2018-04-11 10:05:50,112 INFO L226 Difference]: Without dead ends: 213 [2018-04-11 10:05:50,112 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=185, Invalid=1621, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 10:05:50,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2018-04-11 10:05:50,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 167. [2018-04-11 10:05:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-04-11 10:05:50,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 200 transitions. [2018-04-11 10:05:50,116 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 200 transitions. Word has length 84 [2018-04-11 10:05:50,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:05:50,116 INFO L459 AbstractCegarLoop]: Abstraction has 167 states and 200 transitions. [2018-04-11 10:05:50,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-11 10:05:50,116 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 200 transitions. [2018-04-11 10:05:50,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-04-11 10:05:50,117 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:05:50,117 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-11 10:05:50,117 INFO L408 AbstractCegarLoop]: === Iteration 33 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:05:50,117 INFO L82 PathProgramCache]: Analyzing trace with hash -466599547, now seen corresponding path program 1 times [2018-04-11 10:05:50,117 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:05:50,117 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:05:50,118 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:50,118 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:05:50,118 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:05:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:50,138 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:05:50,337 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-04-11 10:05:50,338 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:05:50,338 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:05:50,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:05:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:05:50,374 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:05:50,377 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:50,377 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:50,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:05:50,391 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:50,394 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:50,394 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 10:05:50,399 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:50,400 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-11 10:05:50,400 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:50,405 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:50,406 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 10:05:50,406 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-11 10:05:50,406 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:50,410 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:50,410 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 10:05:50,441 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 10:05:50,442 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 10:05:50,442 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:50,443 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:50,446 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:50,446 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-11 10:05:50,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-04-11 10:05:50,466 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 10:05:50,466 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:50,469 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:05:50,472 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:05:50,472 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 10:05:51,784 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2018-04-11 10:05:51,786 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-04-11 10:05:51,786 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:05:51,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 10:05:51,795 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 10:05:51,800 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:05:51,811 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 10:05:51,811 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:60, output treesize:42 [2018-04-11 10:05:51,903 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 4 proven. 66 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 10:05:51,921 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:05:51,921 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 29] total 42 [2018-04-11 10:05:51,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-11 10:05:51,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-11 10:05:51,922 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1654, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 10:05:51,922 INFO L87 Difference]: Start difference. First operand 167 states and 200 transitions. Second operand 43 states. [2018-04-11 10:05:53,309 WARN L148 SmtUtils]: Spent 113ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-11 10:06:14,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:06:14,330 INFO L93 Difference]: Finished difference Result 217 states and 247 transitions. [2018-04-11 10:06:14,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-11 10:06:14,330 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 87 [2018-04-11 10:06:14,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:06:14,331 INFO L225 Difference]: With dead ends: 217 [2018-04-11 10:06:14,331 INFO L226 Difference]: Without dead ends: 217 [2018-04-11 10:06:14,332 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1645 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=696, Invalid=6274, Unknown=2, NotChecked=0, Total=6972 [2018-04-11 10:06:14,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-04-11 10:06:14,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 107. [2018-04-11 10:06:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-04-11 10:06:14,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2018-04-11 10:06:14,334 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 87 [2018-04-11 10:06:14,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:06:14,334 INFO L459 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2018-04-11 10:06:14,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-11 10:06:14,335 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2018-04-11 10:06:14,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-11 10:06:14,335 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:06:14,335 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:06:14,335 INFO L408 AbstractCegarLoop]: === Iteration 34 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:06:14,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1701860085, now seen corresponding path program 2 times [2018-04-11 10:06:14,336 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:06:14,336 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:06:14,336 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:06:14,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:06:14,337 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:06:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:06:14,349 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:06:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 32 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:06:14,550 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:06:14,550 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:06:14,555 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:06:14,572 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-04-11 10:06:14,573 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:06:14,574 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:06:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-04-11 10:06:14,631 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 10:06:14,631 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 21 [2018-04-11 10:06:14,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 10:06:14,632 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 10:06:14,632 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2018-04-11 10:06:14,632 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 22 states. [2018-04-11 10:06:15,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:06:15,106 INFO L93 Difference]: Finished difference Result 151 states and 169 transitions. [2018-04-11 10:06:15,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-11 10:06:15,106 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 88 [2018-04-11 10:06:15,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:06:15,107 INFO L225 Difference]: With dead ends: 151 [2018-04-11 10:06:15,107 INFO L226 Difference]: Without dead ends: 151 [2018-04-11 10:06:15,108 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=261, Invalid=1631, Unknown=0, NotChecked=0, Total=1892 [2018-04-11 10:06:15,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-04-11 10:06:15,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 112. [2018-04-11 10:06:15,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-04-11 10:06:15,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2018-04-11 10:06:15,110 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 88 [2018-04-11 10:06:15,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:06:15,110 INFO L459 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2018-04-11 10:06:15,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 10:06:15,110 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2018-04-11 10:06:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-04-11 10:06:15,111 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:06:15,111 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:06:15,111 INFO L408 AbstractCegarLoop]: === Iteration 35 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:06:15,111 INFO L82 PathProgramCache]: Analyzing trace with hash -545146125, now seen corresponding path program 3 times [2018-04-11 10:06:15,111 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:06:15,111 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:06:15,111 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:06:15,111 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:06:15,112 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:06:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:06:15,126 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:06:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 52 proven. 90 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 10:06:15,344 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:06:15,344 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:06:15,349 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 10:06:15,431 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2018-04-11 10:06:15,431 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:06:15,435 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:06:15,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-11 10:06:15,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-04-11 10:06:15,476 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:06:15,477 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:06:15,480 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 10:06:15,480 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:17 [2018-04-11 10:06:17,850 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 18 [2018-04-11 10:06:21,895 WARN L151 SmtUtils]: Spent 4008ms on a formula simplification. DAG size of input: 27 DAG size of output 20 [2018-04-11 10:06:23,927 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-11 10:06:25,960 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-11 10:06:50,473 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2018-04-11 10:06:50,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-04-11 10:06:50,474 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 10:06:50,477 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:06:50,478 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:06:50,478 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:26, output treesize:3 [2018-04-11 10:06:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 28 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:06:50,543 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:06:50,543 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 34] total 48 [2018-04-11 10:06:50,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-04-11 10:06:50,543 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-04-11 10:06:50,544 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=2131, Unknown=12, NotChecked=0, Total=2256 [2018-04-11 10:06:50,544 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand 48 states. [2018-04-11 10:06:53,151 WARN L148 SmtUtils]: Spent 2006ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-11 10:06:55,225 WARN L148 SmtUtils]: Spent 2014ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-11 10:06:57,299 WARN L148 SmtUtils]: Spent 2014ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 10:06:59,404 WARN L148 SmtUtils]: Spent 2036ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 10:07:01,468 WARN L148 SmtUtils]: Spent 2018ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 10:07:03,534 WARN L148 SmtUtils]: Spent 2006ms on a formula simplification that was a NOOP. DAG size: 23 [2018-04-11 10:07:05,634 WARN L148 SmtUtils]: Spent 2011ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-11 10:07:07,720 WARN L148 SmtUtils]: Spent 2012ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-11 10:07:09,844 WARN L148 SmtUtils]: Spent 2011ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-11 10:07:11,968 WARN L148 SmtUtils]: Spent 2012ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-11 10:07:14,135 WARN L148 SmtUtils]: Spent 2021ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-11 10:07:16,239 WARN L148 SmtUtils]: Spent 2011ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-11 10:07:18,382 WARN L148 SmtUtils]: Spent 2011ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-11 10:07:20,566 WARN L148 SmtUtils]: Spent 2012ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-11 10:07:22,659 WARN L148 SmtUtils]: Spent 2010ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-11 10:07:24,764 WARN L148 SmtUtils]: Spent 2012ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-11 10:07:26,927 WARN L148 SmtUtils]: Spent 2010ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-11 10:07:29,018 WARN L148 SmtUtils]: Spent 2012ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-11 10:07:31,126 WARN L148 SmtUtils]: Spent 2012ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-11 10:07:33,209 WARN L148 SmtUtils]: Spent 2008ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-11 10:07:33,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:07:33,266 INFO L93 Difference]: Finished difference Result 292 states and 335 transitions. [2018-04-11 10:07:33,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-11 10:07:33,267 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 102 [2018-04-11 10:07:33,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:07:33,267 INFO L225 Difference]: With dead ends: 292 [2018-04-11 10:07:33,267 INFO L226 Difference]: Without dead ends: 119 [2018-04-11 10:07:33,269 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1046 ImplicationChecksByTransitivity, 76.4s TimeCoverageRelationStatistics Valid=415, Invalid=7055, Unknown=12, NotChecked=0, Total=7482 [2018-04-11 10:07:33,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-04-11 10:07:33,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 116. [2018-04-11 10:07:33,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-04-11 10:07:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2018-04-11 10:07:33,271 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 102 [2018-04-11 10:07:33,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:07:33,271 INFO L459 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2018-04-11 10:07:33,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-04-11 10:07:33,271 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2018-04-11 10:07:33,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-04-11 10:07:33,271 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:07:33,271 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:07:33,271 INFO L408 AbstractCegarLoop]: === Iteration 36 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:07:33,271 INFO L82 PathProgramCache]: Analyzing trace with hash -2075901424, now seen corresponding path program 4 times [2018-04-11 10:07:33,271 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:07:33,271 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:07:33,272 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:07:33,272 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:07:33,272 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:07:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:07:33,281 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:07:33,510 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 20 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:07:33,511 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:07:33,511 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:07:33,516 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 10:07:33,556 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 10:07:33,556 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:07:33,559 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:07:33,939 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 50 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:07:33,958 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:07:33,958 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 36 [2018-04-11 10:07:33,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-04-11 10:07:33,958 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-04-11 10:07:33,958 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 10:07:33,959 INFO L87 Difference]: Start difference. First operand 116 states and 134 transitions. Second operand 36 states. [2018-04-11 10:07:35,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:07:35,449 INFO L93 Difference]: Finished difference Result 280 states and 318 transitions. [2018-04-11 10:07:35,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-04-11 10:07:35,449 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 106 [2018-04-11 10:07:35,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:07:35,449 INFO L225 Difference]: With dead ends: 280 [2018-04-11 10:07:35,450 INFO L226 Difference]: Without dead ends: 168 [2018-04-11 10:07:35,450 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=302, Invalid=4254, Unknown=0, NotChecked=0, Total=4556 [2018-04-11 10:07:35,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-04-11 10:07:35,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 129. [2018-04-11 10:07:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-04-11 10:07:35,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2018-04-11 10:07:35,452 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 106 [2018-04-11 10:07:35,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:07:35,452 INFO L459 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2018-04-11 10:07:35,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-04-11 10:07:35,453 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2018-04-11 10:07:35,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-04-11 10:07:35,453 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:07:35,453 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:07:35,453 INFO L408 AbstractCegarLoop]: === Iteration 37 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:07:35,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1511568165, now seen corresponding path program 5 times [2018-04-11 10:07:35,453 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:07:35,453 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:07:35,454 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:07:35,454 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:07:35,454 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:07:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:07:35,468 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:07:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 24 proven. 213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:07:35,703 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:07:35,703 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:07:35,708 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-11 10:07:35,992 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-04-11 10:07:35,992 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:07:35,999 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:07:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 72 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:07:36,440 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:07:36,440 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21] total 40 [2018-04-11 10:07:36,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-11 10:07:36,441 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-11 10:07:36,441 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1461, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 10:07:36,441 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand 40 states. [2018-04-11 10:07:38,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:07:38,326 INFO L93 Difference]: Finished difference Result 319 states and 363 transitions. [2018-04-11 10:07:38,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-11 10:07:38,326 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 119 [2018-04-11 10:07:38,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:07:38,327 INFO L225 Difference]: With dead ends: 319 [2018-04-11 10:07:38,327 INFO L226 Difference]: Without dead ends: 188 [2018-04-11 10:07:38,328 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 886 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=349, Invalid=5351, Unknown=0, NotChecked=0, Total=5700 [2018-04-11 10:07:38,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-04-11 10:07:38,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 142. [2018-04-11 10:07:38,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-04-11 10:07:38,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 166 transitions. [2018-04-11 10:07:38,330 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 166 transitions. Word has length 119 [2018-04-11 10:07:38,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:07:38,330 INFO L459 AbstractCegarLoop]: Abstraction has 142 states and 166 transitions. [2018-04-11 10:07:38,331 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-11 10:07:38,331 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 166 transitions. [2018-04-11 10:07:38,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-04-11 10:07:38,331 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:07:38,331 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:07:38,332 INFO L408 AbstractCegarLoop]: === Iteration 38 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:07:38,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1441814902, now seen corresponding path program 6 times [2018-04-11 10:07:38,332 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:07:38,332 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:07:38,332 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:07:38,333 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:07:38,333 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:07:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:07:38,350 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:07:38,667 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 28 proven. 294 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:07:38,668 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:07:38,668 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:07:38,673 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-11 10:07:38,777 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-04-11 10:07:38,777 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:07:38,782 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:07:38,783 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 10:07:38,784 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 10:07:38,784 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 10:07:38,785 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:6, output treesize:1 [2018-04-11 10:07:39,366 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 98 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:07:39,396 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:07:39,396 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2018-04-11 10:07:39,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-11 10:07:39,397 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-11 10:07:39,397 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1674, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 10:07:39,397 INFO L87 Difference]: Start difference. First operand 142 states and 166 transitions. Second operand 43 states. [2018-04-11 10:07:42,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:07:42,306 INFO L93 Difference]: Finished difference Result 382 states and 432 transitions. [2018-04-11 10:07:42,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-04-11 10:07:42,306 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 132 [2018-04-11 10:07:42,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:07:42,307 INFO L225 Difference]: With dead ends: 382 [2018-04-11 10:07:42,307 INFO L226 Difference]: Without dead ends: 220 [2018-04-11 10:07:42,308 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2712 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1124, Invalid=10866, Unknown=0, NotChecked=0, Total=11990 [2018-04-11 10:07:42,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-04-11 10:07:42,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 155. [2018-04-11 10:07:42,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-04-11 10:07:42,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 182 transitions. [2018-04-11 10:07:42,310 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 182 transitions. Word has length 132 [2018-04-11 10:07:42,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:07:42,310 INFO L459 AbstractCegarLoop]: Abstraction has 155 states and 182 transitions. [2018-04-11 10:07:42,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-11 10:07:42,310 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 182 transitions. [2018-04-11 10:07:42,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-04-11 10:07:42,311 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:07:42,311 INFO L355 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:07:42,311 INFO L408 AbstractCegarLoop]: === Iteration 39 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:07:42,311 INFO L82 PathProgramCache]: Analyzing trace with hash 2136271403, now seen corresponding path program 7 times [2018-04-11 10:07:42,311 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:07:42,311 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:07:42,312 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:07:42,312 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:07:42,312 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:07:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:07:42,330 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:07:42,786 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 32 proven. 388 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:07:42,786 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:07:42,786 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:07:42,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:07:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:07:42,867 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:07:43,498 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 128 proven. 292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:07:43,517 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:07:43,517 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 25] total 48 [2018-04-11 10:07:43,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-04-11 10:07:43,518 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-04-11 10:07:43,518 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=2126, Unknown=0, NotChecked=0, Total=2256 [2018-04-11 10:07:43,518 INFO L87 Difference]: Start difference. First operand 155 states and 182 transitions. Second operand 48 states. [2018-04-11 10:07:46,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:07:46,417 INFO L93 Difference]: Finished difference Result 397 states and 453 transitions. [2018-04-11 10:07:46,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-04-11 10:07:46,417 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 145 [2018-04-11 10:07:46,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:07:46,418 INFO L225 Difference]: With dead ends: 397 [2018-04-11 10:07:46,418 INFO L226 Difference]: Without dead ends: 228 [2018-04-11 10:07:46,419 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1357 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=449, Invalid=7923, Unknown=0, NotChecked=0, Total=8372 [2018-04-11 10:07:46,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-04-11 10:07:46,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 168. [2018-04-11 10:07:46,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-11 10:07:46,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 198 transitions. [2018-04-11 10:07:46,421 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 198 transitions. Word has length 145 [2018-04-11 10:07:46,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:07:46,421 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 198 transitions. [2018-04-11 10:07:46,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-04-11 10:07:46,421 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 198 transitions. [2018-04-11 10:07:46,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-04-11 10:07:46,422 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:07:46,422 INFO L355 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:07:46,422 INFO L408 AbstractCegarLoop]: === Iteration 40 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:07:46,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1340707836, now seen corresponding path program 8 times [2018-04-11 10:07:46,422 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:07:46,422 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:07:46,423 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:07:46,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 10:07:46,423 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:07:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:07:46,435 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 10:07:46,887 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 36 proven. 495 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:07:46,887 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 10:07:46,887 INFO L213 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 10:07:46,892 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 10:07:46,957 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 10:07:46,957 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 10:07:46,961 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 10:07:47,715 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 162 proven. 369 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 10:07:47,731 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 10:07:47,732 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 29] total 54 [2018-04-11 10:07:47,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-04-11 10:07:47,732 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-04-11 10:07:47,732 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2711, Unknown=0, NotChecked=0, Total=2862 [2018-04-11 10:07:47,732 INFO L87 Difference]: Start difference. First operand 168 states and 198 transitions. Second operand 54 states. [2018-04-11 10:07:51,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 10:07:51,044 INFO L93 Difference]: Finished difference Result 436 states and 498 transitions. [2018-04-11 10:07:51,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-04-11 10:07:51,044 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 158 [2018-04-11 10:07:51,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 10:07:51,045 INFO L225 Difference]: With dead ends: 436 [2018-04-11 10:07:51,045 INFO L226 Difference]: Without dead ends: 248 [2018-04-11 10:07:51,046 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1743 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=522, Invalid=10190, Unknown=0, NotChecked=0, Total=10712 [2018-04-11 10:07:51,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-04-11 10:07:51,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 181. [2018-04-11 10:07:51,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-04-11 10:07:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 214 transitions. [2018-04-11 10:07:51,049 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 214 transitions. Word has length 158 [2018-04-11 10:07:51,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 10:07:51,049 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 214 transitions. [2018-04-11 10:07:51,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-04-11 10:07:51,050 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 214 transitions. [2018-04-11 10:07:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-04-11 10:07:51,050 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 10:07:51,051 INFO L355 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 10:07:51,051 INFO L408 AbstractCegarLoop]: === Iteration 41 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 10:07:51,051 INFO L82 PathProgramCache]: Analyzing trace with hash -581136335, now seen corresponding path program 9 times [2018-04-11 10:07:51,051 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 10:07:51,051 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 10:07:51,052 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:07:51,052 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 10:07:51,052 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 10:07:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 10:07:51,074 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. Received shutdown request... [2018-04-11 10:07:51,117 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:265) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:918) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:203) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:408) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:417) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:363) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:118) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-04-11 10:07:51,125 INFO L168 Benchmark]: Toolchain (without parser) took 197113.28 ms. Allocated memory was 401.6 MB in the beginning and 933.8 MB in the end (delta: 532.2 MB). Free memory was 334.0 MB in the beginning and 878.2 MB in the end (delta: -544.2 MB). Peak memory consumption was 478.4 MB. Max. memory is 5.3 GB. [2018-04-11 10:07:51,126 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 401.6 MB. Free memory is still 359.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 10:07:51,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.80 ms. Allocated memory is still 401.6 MB. Free memory was 334.0 MB in the beginning and 307.4 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 5.3 GB. [2018-04-11 10:07:51,126 INFO L168 Benchmark]: Boogie Preprocessor took 41.27 ms. Allocated memory is still 401.6 MB. Free memory was 307.4 MB in the beginning and 304.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 10:07:51,127 INFO L168 Benchmark]: RCFGBuilder took 414.66 ms. Allocated memory was 401.6 MB in the beginning and 611.3 MB in the end (delta: 209.7 MB). Free memory was 304.8 MB in the beginning and 537.4 MB in the end (delta: -232.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. [2018-04-11 10:07:51,127 INFO L168 Benchmark]: TraceAbstraction took 196421.65 ms. Allocated memory was 611.3 MB in the beginning and 933.8 MB in the end (delta: 322.4 MB). Free memory was 537.4 MB in the beginning and 878.2 MB in the end (delta: -340.8 MB). Peak memory consumption was 472.1 MB. Max. memory is 5.3 GB. [2018-04-11 10:07:51,128 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 401.6 MB. Free memory is still 359.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 232.80 ms. Allocated memory is still 401.6 MB. Free memory was 334.0 MB in the beginning and 307.4 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 41.27 ms. Allocated memory is still 401.6 MB. Free memory was 307.4 MB in the beginning and 304.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 414.66 ms. Allocated memory was 401.6 MB in the beginning and 611.3 MB in the end (delta: 209.7 MB). Free memory was 304.8 MB in the beginning and 537.4 MB in the end (delta: -232.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 196421.65 ms. Allocated memory was 611.3 MB in the beginning and 933.8 MB in the end (delta: 322.4 MB). Free memory was 537.4 MB in the beginning and 878.2 MB in the end (delta: -340.8 MB). Peak memory consumption was 472.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:265) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_10-07-51-134.csv Completed graceful shutdown