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 20:34:12,403 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 20:34:12,405 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 20:34:12,418 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 20:34:12,418 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 20:34:12,419 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 20:34:12,419 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 20:34:12,420 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 20:34:12,422 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 20:34:12,423 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 20:34:12,423 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 20:34:12,424 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 20:34:12,424 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 20:34:12,425 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 20:34:12,426 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 20:34:12,428 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 20:34:12,429 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 20:34:12,430 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 20:34:12,431 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 20:34:12,432 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 20:34:12,434 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 20:34:12,434 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 20:34:12,434 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 20:34:12,435 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 20:34:12,435 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 20:34:12,436 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 20:34:12,436 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 20:34:12,437 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 20:34:12,437 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-04-11 20:34:12,438 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 20:34:12,460 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 20:34:12,460 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 20:34:12,461 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 20:34:12,461 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 20:34:12,462 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 20:34:12,462 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 20:34:12,462 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 20:34:12,462 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 20:34:12,462 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 20:34:12,463 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 20:34:12,463 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 20:34:12,463 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 20:34:12,463 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 20:34:12,463 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 20:34:12,463 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 20:34:12,463 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 20:34:12,464 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 20:34:12,464 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 20:34:12,464 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 20:34:12,464 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:34:12,464 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 20:34:12,464 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 20:34:12,464 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 20:34:12,465 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 20:34:12,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 20:34:12,504 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 20:34:12,507 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 20:34:12,508 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 20:34:12,509 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 20:34:12,509 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 20:34:12,847 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG56b668201 [2018-04-11 20:34:12,975 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 20:34:12,975 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 20:34:12,976 INFO L168 CDTParser]: Scanning openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:34:12,982 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 20:34:12,982 INFO L215 ultiparseSymbolTable]: [2018-04-11 20:34:12,983 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 20:34:12,983 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:34:12,983 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 20:34:12,983 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 20:34:12,983 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 20:34:12,983 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 20:34:12,983 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 20:34:12,983 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 20:34:12,984 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 20:34:12,984 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 20:34:12,984 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 20:34:12,984 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 20:34:12,984 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 20:34:12,984 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 20:34:12,984 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 20:34:12,984 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 20:34:12,984 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 20:34:12,984 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 20:34:12,984 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 20:34:12,985 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 20:34:12,985 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 20:34:12,985 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 20:34:12,985 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 20:34:12,985 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 20:34:12,985 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 20:34:12,985 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 20:34:12,985 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 20:34:12,985 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 20:34:12,985 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 20:34:12,985 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 20:34:12,985 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 20:34:12,985 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 20:34:12,985 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 20:34:12,986 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 20:34:12,986 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 20:34:12,986 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 20:34:12,986 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 20:34:12,986 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 20:34:12,986 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 20:34:12,986 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 20:34:12,986 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 20:34:12,986 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 20:34:12,986 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 20:34:12,986 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 20:34:12,986 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 20:34:12,987 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 20:34:12,987 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 20:34:12,987 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 20:34:12,987 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 20:34:12,987 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 20:34:12,987 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 20:34:12,987 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 20:34:12,987 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 20:34:12,987 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 20:34:12,987 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 20:34:12,987 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 20:34:12,987 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 20:34:12,987 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 20:34:12,988 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 20:34:12,988 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 20:34:12,988 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 20:34:12,988 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 20:34:12,988 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 20:34:12,988 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 20:34:12,988 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 20:34:12,988 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 20:34:12,988 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 20:34:12,988 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 20:34:12,988 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 20:34:12,989 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 20:34:12,989 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 20:34:12,989 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 20:34:12,989 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 20:34:12,989 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 20:34:12,989 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 20:34:12,989 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 20:34:12,989 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 20:34:12,989 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 20:34:12,989 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 20:34:12,990 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 20:34:12,990 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 20:34:12,990 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 20:34:12,990 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 20:34:12,990 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 20:34:12,990 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 20:34:12,990 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 20:34:12,990 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 20:34:12,990 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 20:34:12,990 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 20:34:12,990 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 20:34:12,990 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 20:34:12,991 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 20:34:12,991 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 20:34:12,991 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 20:34:12,991 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 20:34:12,991 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 20:34:12,991 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 20:34:12,991 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 20:34:12,991 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 20:34:12,991 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 20:34:12,991 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 20:34:12,991 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 20:34:12,991 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 20:34:12,991 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 20:34:12,991 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,992 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 20:34:12,993 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 20:34:12,993 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 20:34:12,993 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 20:34:12,993 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 20:34:12,993 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 20:34:12,993 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 20:34:12,993 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 20:34:13,007 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG56b668201 [2018-04-11 20:34:13,009 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 20:34:13,010 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 20:34:13,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 20:34:13,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 20:34:13,014 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 20:34:13,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:34:13" (1/1) ... [2018-04-11 20:34:13,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f98f106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:34:13, skipping insertion in model container [2018-04-11 20:34:13,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:34:13" (1/1) ... [2018-04-11 20:34:13,032 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:34:13,057 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:34:13,183 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:34:13,220 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:34:13,225 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 114 non ball SCCs. Number of states in SCCs 114. [2018-04-11 20:34:13,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:34:13 WrapperNode [2018-04-11 20:34:13,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 20:34:13,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 20:34:13,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 20:34:13,253 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 20:34:13,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:34:13" (1/1) ... [2018-04-11 20:34:13,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:34:13" (1/1) ... [2018-04-11 20:34:13,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:34:13" (1/1) ... [2018-04-11 20:34:13,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:34:13" (1/1) ... [2018-04-11 20:34:13,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:34:13" (1/1) ... [2018-04-11 20:34:13,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:34:13" (1/1) ... [2018-04-11 20:34:13,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:34:13" (1/1) ... [2018-04-11 20:34:13,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 20:34:13,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 20:34:13,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 20:34:13,292 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 20:34:13,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:34:13" (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 20:34:13,414 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 20:34:13,414 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 20:34:13,414 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:34:13,415 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:34:13,415 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlen [2018-04-11 20:34:13,415 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmp [2018-04-11 20:34:13,415 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstr [2018-04-11 20:34:13,415 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 20:34:13,415 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:34:13,415 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:34:13,415 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 20:34:13,415 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 20:34:13,415 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 20:34:13,415 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 20:34:13,415 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 20:34:13,416 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 20:34:13,416 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 20:34:13,416 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 20:34:13,416 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 20:34:13,416 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 20:34:13,416 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 20:34:13,416 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 20:34:13,416 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 20:34:13,416 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 20:34:13,417 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 20:34:13,417 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 20:34:13,417 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 20:34:13,417 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 20:34:13,417 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 20:34:13,417 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 20:34:13,417 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 20:34:13,417 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 20:34:13,417 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 20:34:13,418 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 20:34:13,418 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 20:34:13,418 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 20:34:13,418 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 20:34:13,418 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 20:34:13,418 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 20:34:13,418 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 20:34:13,418 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 20:34:13,418 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 20:34:13,418 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 20:34:13,419 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 20:34:13,419 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 20:34:13,419 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 20:34:13,419 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 20:34:13,419 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 20:34:13,419 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 20:34:13,419 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 20:34:13,419 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 20:34:13,419 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 20:34:13,419 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 20:34:13,420 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 20:34:13,420 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 20:34:13,420 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 20:34:13,420 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 20:34:13,420 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 20:34:13,420 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 20:34:13,420 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 20:34:13,420 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 20:34:13,420 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 20:34:13,421 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 20:34:13,421 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 20:34:13,421 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 20:34:13,421 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 20:34:13,421 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 20:34:13,421 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 20:34:13,421 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 20:34:13,421 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 20:34:13,421 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 20:34:13,421 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 20:34:13,421 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 20:34:13,422 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 20:34:13,422 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 20:34:13,422 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 20:34:13,422 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 20:34:13,422 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 20:34:13,422 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 20:34:13,422 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 20:34:13,422 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 20:34:13,422 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 20:34:13,422 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 20:34:13,423 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 20:34:13,423 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 20:34:13,423 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 20:34:13,423 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 20:34:13,423 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 20:34:13,423 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 20:34:13,423 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 20:34:13,423 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 20:34:13,423 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 20:34:13,423 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 20:34:13,424 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 20:34:13,424 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 20:34:13,424 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 20:34:13,424 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 20:34:13,424 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 20:34:13,424 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 20:34:13,424 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 20:34:13,424 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 20:34:13,424 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 20:34:13,424 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 20:34:13,425 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 20:34:13,425 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 20:34:13,425 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 20:34:13,425 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 20:34:13,425 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 20:34:13,425 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 20:34:13,425 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 20:34:13,425 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 20:34:13,425 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlen [2018-04-11 20:34:13,425 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 20:34:13,426 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmp [2018-04-11 20:34:13,426 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstr [2018-04-11 20:34:13,426 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 20:34:13,426 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 20:34:13,426 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 20:34:13,426 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 20:34:13,426 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 20:34:13,426 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 20:34:13,426 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 20:34:13,776 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 20:34:13,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:34:13 BoogieIcfgContainer [2018-04-11 20:34:13,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 20:34:13,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 20:34:13,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 20:34:13,779 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 20:34:13,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 08:34:13" (1/3) ... [2018-04-11 20:34:13,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63faa5a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:34:13, skipping insertion in model container [2018-04-11 20:34:13,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:34:13" (2/3) ... [2018-04-11 20:34:13,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63faa5a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:34:13, skipping insertion in model container [2018-04-11 20:34:13,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:34:13" (3/3) ... [2018-04-11 20:34:13,781 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:34:13,787 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 20:34:13,792 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2018-04-11 20:34:13,818 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 20:34:13,819 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 20:34:13,819 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 20:34:13,819 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 20:34:13,819 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 20:34:13,819 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 20:34:13,819 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 20:34:13,820 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 20:34:13,820 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 20:34:13,820 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 20:34:13,832 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-04-11 20:34:13,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 20:34:13,840 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:13,841 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:34:13,841 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 20:34:13,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1281524752, now seen corresponding path program 1 times [2018-04-11 20:34:13,844 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:13,845 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:13,873 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:13,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:13,873 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:13,917 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:13,982 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 20:34:13,985 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:13,985 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 20:34:13,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:34:13,997 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:34:13,997 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:34:13,999 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 4 states. [2018-04-11 20:34:14,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:14,076 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2018-04-11 20:34:14,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:34:14,077 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-11 20:34:14,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:14,083 INFO L225 Difference]: With dead ends: 89 [2018-04-11 20:34:14,083 INFO L226 Difference]: Without dead ends: 86 [2018-04-11 20:34:14,084 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 20:34:14,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-04-11 20:34:14,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-04-11 20:34:14,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-04-11 20:34:14,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 96 transitions. [2018-04-11 20:34:14,108 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 96 transitions. Word has length 13 [2018-04-11 20:34:14,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:14,109 INFO L459 AbstractCegarLoop]: Abstraction has 86 states and 96 transitions. [2018-04-11 20:34:14,109 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:34:14,109 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 96 transitions. [2018-04-11 20:34:14,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 20:34:14,109 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:14,109 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:34:14,109 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 20:34:14,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1281524751, now seen corresponding path program 1 times [2018-04-11 20:34:14,110 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:14,110 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:14,110 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:14,110 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:14,121 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:14,193 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 20:34:14,193 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:14,194 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:34:14,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:34:14,195 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:34:14,195 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:34:14,196 INFO L87 Difference]: Start difference. First operand 86 states and 96 transitions. Second operand 6 states. [2018-04-11 20:34:14,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:14,241 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2018-04-11 20:34:14,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:34:14,243 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-11 20:34:14,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:14,244 INFO L225 Difference]: With dead ends: 85 [2018-04-11 20:34:14,244 INFO L226 Difference]: Without dead ends: 85 [2018-04-11 20:34:14,245 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 20:34:14,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-11 20:34:14,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-04-11 20:34:14,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-11 20:34:14,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2018-04-11 20:34:14,249 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 13 [2018-04-11 20:34:14,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:14,249 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2018-04-11 20:34:14,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:34:14,249 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2018-04-11 20:34:14,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 20:34:14,249 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:14,249 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:34:14,249 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 20:34:14,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1072561654, now seen corresponding path program 1 times [2018-04-11 20:34:14,249 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:14,249 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:14,250 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:14,250 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:14,259 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:14,277 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 20:34:14,278 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:14,278 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 20:34:14,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:34:14,278 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:34:14,278 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:34:14,278 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand 4 states. [2018-04-11 20:34:14,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:14,338 INFO L93 Difference]: Finished difference Result 84 states and 94 transitions. [2018-04-11 20:34:14,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:34:14,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-11 20:34:14,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:14,339 INFO L225 Difference]: With dead ends: 84 [2018-04-11 20:34:14,339 INFO L226 Difference]: Without dead ends: 84 [2018-04-11 20:34:14,339 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 20:34:14,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-11 20:34:14,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-04-11 20:34:14,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-04-11 20:34:14,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 94 transitions. [2018-04-11 20:34:14,345 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 94 transitions. Word has length 14 [2018-04-11 20:34:14,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:14,345 INFO L459 AbstractCegarLoop]: Abstraction has 84 states and 94 transitions. [2018-04-11 20:34:14,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:34:14,345 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 94 transitions. [2018-04-11 20:34:14,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 20:34:14,345 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:14,345 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:34:14,345 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 20:34:14,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1072561653, now seen corresponding path program 1 times [2018-04-11 20:34:14,346 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:14,346 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:14,346 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:14,346 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:14,355 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:14,401 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 20:34:14,401 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:14,401 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 20:34:14,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 20:34:14,402 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 20:34:14,402 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:34:14,402 INFO L87 Difference]: Start difference. First operand 84 states and 94 transitions. Second operand 5 states. [2018-04-11 20:34:14,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:14,431 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2018-04-11 20:34:14,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:34:14,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 20:34:14,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:14,432 INFO L225 Difference]: With dead ends: 83 [2018-04-11 20:34:14,432 INFO L226 Difference]: Without dead ends: 83 [2018-04-11 20:34:14,432 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 20:34:14,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-11 20:34:14,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-04-11 20:34:14,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-11 20:34:14,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2018-04-11 20:34:14,436 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 14 [2018-04-11 20:34:14,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:14,436 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2018-04-11 20:34:14,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 20:34:14,437 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2018-04-11 20:34:14,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 20:34:14,437 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:14,437 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 20:34:14,437 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 20:34:14,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1872573656, now seen corresponding path program 1 times [2018-04-11 20:34:14,438 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:14,438 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:14,438 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:14,439 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:14,451 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:14,476 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 20:34:14,477 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:14,477 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 20:34:14,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 20:34:14,477 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 20:34:14,478 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:34:14,478 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand 5 states. [2018-04-11 20:34:14,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:14,541 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2018-04-11 20:34:14,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 20:34:14,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-04-11 20:34:14,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:14,542 INFO L225 Difference]: With dead ends: 82 [2018-04-11 20:34:14,542 INFO L226 Difference]: Without dead ends: 82 [2018-04-11 20:34:14,542 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 20:34:14,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-11 20:34:14,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-04-11 20:34:14,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-11 20:34:14,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2018-04-11 20:34:14,545 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 17 [2018-04-11 20:34:14,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:14,545 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2018-04-11 20:34:14,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 20:34:14,545 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2018-04-11 20:34:14,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 20:34:14,546 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:14,546 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 20:34:14,546 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 20:34:14,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1872573657, now seen corresponding path program 1 times [2018-04-11 20:34:14,546 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:14,546 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:14,547 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:14,547 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:14,558 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:14,619 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 20:34:14,620 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:14,620 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 20:34:14,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 20:34:14,620 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 20:34:14,620 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:34:14,620 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 8 states. [2018-04-11 20:34:14,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:14,700 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2018-04-11 20:34:14,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 20:34:14,700 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-04-11 20:34:14,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:14,701 INFO L225 Difference]: With dead ends: 81 [2018-04-11 20:34:14,701 INFO L226 Difference]: Without dead ends: 81 [2018-04-11 20:34:14,701 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 20:34:14,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-04-11 20:34:14,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-04-11 20:34:14,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-04-11 20:34:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2018-04-11 20:34:14,705 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 17 [2018-04-11 20:34:14,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:14,705 INFO L459 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2018-04-11 20:34:14,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 20:34:14,706 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2018-04-11 20:34:14,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 20:34:14,706 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:14,706 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 20:34:14,706 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 20:34:14,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1417476355, now seen corresponding path program 1 times [2018-04-11 20:34:14,707 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:14,707 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:14,707 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:14,708 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:14,718 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:14,755 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 20:34:14,756 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:14,756 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 20:34:14,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:34:14,756 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:34:14,756 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:34:14,757 INFO L87 Difference]: Start difference. First operand 81 states and 91 transitions. Second operand 7 states. [2018-04-11 20:34:14,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:14,849 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2018-04-11 20:34:14,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:34:14,849 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-04-11 20:34:14,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:14,850 INFO L225 Difference]: With dead ends: 80 [2018-04-11 20:34:14,850 INFO L226 Difference]: Without dead ends: 80 [2018-04-11 20:34:14,850 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 20:34:14,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-04-11 20:34:14,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-04-11 20:34:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-04-11 20:34:14,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2018-04-11 20:34:14,854 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 23 [2018-04-11 20:34:14,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:14,855 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2018-04-11 20:34:14,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:34:14,855 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2018-04-11 20:34:14,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 20:34:14,855 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:14,855 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 20:34:14,856 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 20:34:14,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1417476356, now seen corresponding path program 1 times [2018-04-11 20:34:14,856 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:14,856 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:14,857 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:14,857 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:14,871 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:14,944 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 20:34:14,944 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:14,945 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-11 20:34:14,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 20:34:14,945 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 20:34:14,945 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:34:14,945 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand 10 states. [2018-04-11 20:34:15,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:15,085 INFO L93 Difference]: Finished difference Result 104 states and 113 transitions. [2018-04-11 20:34:15,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 20:34:15,085 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-04-11 20:34:15,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:15,088 INFO L225 Difference]: With dead ends: 104 [2018-04-11 20:34:15,088 INFO L226 Difference]: Without dead ends: 104 [2018-04-11 20:34:15,089 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 20:34:15,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-04-11 20:34:15,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 94. [2018-04-11 20:34:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-04-11 20:34:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 104 transitions. [2018-04-11 20:34:15,093 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 104 transitions. Word has length 23 [2018-04-11 20:34:15,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:15,093 INFO L459 AbstractCegarLoop]: Abstraction has 94 states and 104 transitions. [2018-04-11 20:34:15,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 20:34:15,094 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 104 transitions. [2018-04-11 20:34:15,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 20:34:15,094 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:15,094 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 20:34:15,096 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 20:34:15,096 INFO L82 PathProgramCache]: Analyzing trace with hash 396408002, now seen corresponding path program 1 times [2018-04-11 20:34:15,096 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:15,096 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:15,097 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:15,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:15,097 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:15,109 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:15,264 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 20:34:15,264 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:15,264 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-11 20:34:15,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 20:34:15,265 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 20:34:15,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-04-11 20:34:15,265 INFO L87 Difference]: Start difference. First operand 94 states and 104 transitions. Second operand 13 states. [2018-04-11 20:34:15,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:15,568 INFO L93 Difference]: Finished difference Result 104 states and 115 transitions. [2018-04-11 20:34:15,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 20:34:15,569 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2018-04-11 20:34:15,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:15,569 INFO L225 Difference]: With dead ends: 104 [2018-04-11 20:34:15,570 INFO L226 Difference]: Without dead ends: 104 [2018-04-11 20:34:15,570 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 20:34:15,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-04-11 20:34:15,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2018-04-11 20:34:15,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-04-11 20:34:15,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2018-04-11 20:34:15,573 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 23 [2018-04-11 20:34:15,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:15,573 INFO L459 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2018-04-11 20:34:15,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 20:34:15,573 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2018-04-11 20:34:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-11 20:34:15,573 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:15,574 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 20:34:15,574 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 20:34:15,574 INFO L82 PathProgramCache]: Analyzing trace with hash 989716549, now seen corresponding path program 1 times [2018-04-11 20:34:15,574 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:15,574 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:15,574 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:15,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:15,575 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:15,590 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:15,801 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 20:34:15,801 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:34:15,801 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 20:34:15,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:15,849 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:34:15,875 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 20:34:15,876 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:15,879 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:15,879 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 20:34:15,920 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 20:34:15,922 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 20:34:15,922 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:15,923 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:15,924 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:15,924 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-11 20:34:16,039 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 20:34:16,051 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 20:34:16,052 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:34:16,055 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:34:16,060 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:34:16,060 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:34 [2018-04-11 20:34:16,123 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 20:34:16,140 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:34:16,141 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 25 [2018-04-11 20:34:16,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 20:34:16,141 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 20:34:16,141 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2018-04-11 20:34:16,141 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand 26 states. [2018-04-11 20:34:16,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:16,825 INFO L93 Difference]: Finished difference Result 122 states and 135 transitions. [2018-04-11 20:34:16,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 20:34:16,825 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 27 [2018-04-11 20:34:16,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:16,827 INFO L225 Difference]: With dead ends: 122 [2018-04-11 20:34:16,827 INFO L226 Difference]: Without dead ends: 122 [2018-04-11 20:34:16,828 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=224, Invalid=1498, Unknown=0, NotChecked=0, Total=1722 [2018-04-11 20:34:16,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-04-11 20:34:16,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 93. [2018-04-11 20:34:16,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-04-11 20:34:16,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 103 transitions. [2018-04-11 20:34:16,835 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 103 transitions. Word has length 27 [2018-04-11 20:34:16,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:16,835 INFO L459 AbstractCegarLoop]: Abstraction has 93 states and 103 transitions. [2018-04-11 20:34:16,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 20:34:16,835 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 103 transitions. [2018-04-11 20:34:16,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 20:34:16,835 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:16,835 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 20:34:16,835 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 20:34:16,836 INFO L82 PathProgramCache]: Analyzing trace with hash -2041517279, now seen corresponding path program 1 times [2018-04-11 20:34:16,836 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:16,836 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:16,836 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:16,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:16,836 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:16,847 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:16,899 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 20:34:16,899 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:16,899 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:34:16,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:34:16,900 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:34:16,900 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:34:16,900 INFO L87 Difference]: Start difference. First operand 93 states and 103 transitions. Second operand 6 states. [2018-04-11 20:34:17,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:17,028 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2018-04-11 20:34:17,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 20:34:17,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-04-11 20:34:17,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:17,029 INFO L225 Difference]: With dead ends: 92 [2018-04-11 20:34:17,029 INFO L226 Difference]: Without dead ends: 68 [2018-04-11 20:34:17,029 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 20:34:17,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-04-11 20:34:17,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-04-11 20:34:17,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-11 20:34:17,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2018-04-11 20:34:17,031 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 28 [2018-04-11 20:34:17,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:17,032 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2018-04-11 20:34:17,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:34:17,032 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2018-04-11 20:34:17,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 20:34:17,033 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:17,033 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 20:34:17,033 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 20:34:17,033 INFO L82 PathProgramCache]: Analyzing trace with hash -343838603, now seen corresponding path program 1 times [2018-04-11 20:34:17,033 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:17,033 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:17,034 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:17,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:17,034 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:17,050 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:17,080 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 20:34:17,081 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:17,081 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 20:34:17,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 20:34:17,081 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 20:34:17,081 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 20:34:17,082 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 6 states. [2018-04-11 20:34:17,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:17,140 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-04-11 20:34:17,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:34:17,140 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-04-11 20:34:17,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:17,141 INFO L225 Difference]: With dead ends: 67 [2018-04-11 20:34:17,141 INFO L226 Difference]: Without dead ends: 67 [2018-04-11 20:34:17,141 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 20:34:17,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-11 20:34:17,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-04-11 20:34:17,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-11 20:34:17,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2018-04-11 20:34:17,144 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 31 [2018-04-11 20:34:17,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:17,144 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2018-04-11 20:34:17,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 20:34:17,144 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2018-04-11 20:34:17,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 20:34:17,144 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:17,145 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 20:34:17,145 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 20:34:17,145 INFO L82 PathProgramCache]: Analyzing trace with hash -343838602, now seen corresponding path program 1 times [2018-04-11 20:34:17,145 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:17,145 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:17,146 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:17,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:17,146 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:17,154 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:17,228 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 20:34:17,228 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:17,228 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 20:34:17,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 20:34:17,229 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 20:34:17,229 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-11 20:34:17,229 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 9 states. [2018-04-11 20:34:17,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:17,314 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2018-04-11 20:34:17,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 20:34:17,315 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-04-11 20:34:17,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:17,315 INFO L225 Difference]: With dead ends: 72 [2018-04-11 20:34:17,315 INFO L226 Difference]: Without dead ends: 72 [2018-04-11 20:34:17,315 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 20:34:17,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-11 20:34:17,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2018-04-11 20:34:17,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-04-11 20:34:17,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2018-04-11 20:34:17,318 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 31 [2018-04-11 20:34:17,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:17,318 INFO L459 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2018-04-11 20:34:17,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 20:34:17,318 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2018-04-11 20:34:17,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 20:34:17,319 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:17,319 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 20:34:17,319 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 20:34:17,319 INFO L82 PathProgramCache]: Analyzing trace with hash 132134015, now seen corresponding path program 1 times [2018-04-11 20:34:17,319 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:17,319 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:17,320 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:17,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:17,320 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:17,331 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:17,485 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 20:34:17,486 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:17,486 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-04-11 20:34:17,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 20:34:17,486 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 20:34:17,487 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-04-11 20:34:17,487 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand 13 states. [2018-04-11 20:34:17,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:17,640 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2018-04-11 20:34:17,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 20:34:17,641 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2018-04-11 20:34:17,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:17,641 INFO L225 Difference]: With dead ends: 89 [2018-04-11 20:34:17,641 INFO L226 Difference]: Without dead ends: 70 [2018-04-11 20:34:17,641 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2018-04-11 20:34:17,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-04-11 20:34:17,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-04-11 20:34:17,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-04-11 20:34:17,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 76 transitions. [2018-04-11 20:34:17,643 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 76 transitions. Word has length 36 [2018-04-11 20:34:17,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:17,643 INFO L459 AbstractCegarLoop]: Abstraction has 70 states and 76 transitions. [2018-04-11 20:34:17,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 20:34:17,643 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 76 transitions. [2018-04-11 20:34:17,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 20:34:17,644 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:17,644 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 20:34:17,644 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 20:34:17,644 INFO L82 PathProgramCache]: Analyzing trace with hash 154766269, now seen corresponding path program 1 times [2018-04-11 20:34:17,644 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:17,644 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:17,645 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:17,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:17,645 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:17,653 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:17,870 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 20:34:17,870 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:34:17,870 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 20:34:17,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:17,892 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:34:17,894 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 20:34:17,894 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:17,896 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:17,896 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 20:34:17,919 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:34:17,920 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:34:17,920 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 20:34:17,920 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:17,922 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:17,923 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-11 20:34:17,953 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 20:34:17,954 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 20:34:17,954 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:17,955 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:17,960 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 20:34:17,960 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-11 20:34:17,988 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 20:34:17,989 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 20:34:17,990 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:17,993 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:17,998 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 20:34:17,998 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-11 20:34:22,359 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 20:34:22,369 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 20:34:22,370 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:34:22,410 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 20:34:22,410 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:22,411 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 20:34:22,411 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:22,449 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 20:34:22,449 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:22,458 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 20:34:22,458 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:22,486 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 20:34:22,486 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:22,524 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 20:34:22,524 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-04-11 20:34:22,556 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 20:34:22,556 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-04-11 20:34:22,591 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 20:34:22,591 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-04-11 20:34:22,613 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 20:34:22,613 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:22,630 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:34:22,653 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 20:34:22,654 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 9 variables, input treesize:72, output treesize:29 [2018-04-11 20:34:22,731 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 20:34:22,749 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:34:22,749 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 27 [2018-04-11 20:34:22,749 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-04-11 20:34:22,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-04-11 20:34:22,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=681, Unknown=2, NotChecked=0, Total=756 [2018-04-11 20:34:22,750 INFO L87 Difference]: Start difference. First operand 70 states and 76 transitions. Second operand 28 states. [2018-04-11 20:34:28,070 WARN L151 SmtUtils]: Spent 300ms on a formula simplification. DAG size of input: 97 DAG size of output 71 [2018-04-11 20:34:42,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:42,512 INFO L93 Difference]: Finished difference Result 109 states and 120 transitions. [2018-04-11 20:34:42,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 20:34:42,513 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 36 [2018-04-11 20:34:42,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:42,513 INFO L225 Difference]: With dead ends: 109 [2018-04-11 20:34:42,513 INFO L226 Difference]: Without dead ends: 109 [2018-04-11 20:34:42,514 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=202, Invalid=1355, Unknown=3, NotChecked=0, Total=1560 [2018-04-11 20:34:42,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-04-11 20:34:42,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 97. [2018-04-11 20:34:42,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-04-11 20:34:42,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 118 transitions. [2018-04-11 20:34:42,515 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 118 transitions. Word has length 36 [2018-04-11 20:34:42,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:42,515 INFO L459 AbstractCegarLoop]: Abstraction has 97 states and 118 transitions. [2018-04-11 20:34:42,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-04-11 20:34:42,516 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 118 transitions. [2018-04-11 20:34:42,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-11 20:34:42,516 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:42,516 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 20:34:42,516 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 20:34:42,516 INFO L82 PathProgramCache]: Analyzing trace with hash 2139102706, now seen corresponding path program 1 times [2018-04-11 20:34:42,516 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:42,516 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:42,517 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:42,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:42,517 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:42,526 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:42,565 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 20:34:42,565 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:42,565 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 20:34:42,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 20:34:42,565 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 20:34:42,565 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:34:42,566 INFO L87 Difference]: Start difference. First operand 97 states and 118 transitions. Second operand 8 states. [2018-04-11 20:34:42,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:42,603 INFO L93 Difference]: Finished difference Result 135 states and 159 transitions. [2018-04-11 20:34:42,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 20:34:42,604 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2018-04-11 20:34:42,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:42,604 INFO L225 Difference]: With dead ends: 135 [2018-04-11 20:34:42,604 INFO L226 Difference]: Without dead ends: 135 [2018-04-11 20:34:42,605 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 20:34:42,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-04-11 20:34:42,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2018-04-11 20:34:42,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-04-11 20:34:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 158 transitions. [2018-04-11 20:34:42,608 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 158 transitions. Word has length 39 [2018-04-11 20:34:42,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:42,608 INFO L459 AbstractCegarLoop]: Abstraction has 133 states and 158 transitions. [2018-04-11 20:34:42,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 20:34:42,608 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 158 transitions. [2018-04-11 20:34:42,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-04-11 20:34:42,609 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:42,609 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 20:34:42,609 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 20:34:42,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1227427224, now seen corresponding path program 2 times [2018-04-11 20:34:42,609 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:42,609 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:42,610 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:42,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:42,610 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:42,619 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:42,943 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 20:34:42,944 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:34:42,944 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 20:34:42,949 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 20:34:42,967 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 20:34:42,967 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:34:42,970 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:34:42,973 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 20:34:42,974 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:42,977 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 20:34:42,977 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:42,980 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:42,980 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:34:43,016 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:34:43,017 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 20:34:43,017 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:43,023 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:34:43,023 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:34:43,023 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 20:34:43,024 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:43,027 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:43,027 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 20:34:43,059 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 20:34:43,060 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 20:34:43,060 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:43,061 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:43,065 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 20:34:43,066 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 20:34:43,093 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 20:34:43,095 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 20:34:43,095 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:43,099 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:43,103 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 20:34:43,103 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:35 [2018-04-11 20:34:43,678 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 20:34:43,683 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 20:34:43,683 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:34:43,690 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 20:34:43,690 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:43,693 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:34:43,702 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 20:34:43,702 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:52, output treesize:37 [2018-04-11 20:34:43,784 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 20:34:43,804 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:34:43,804 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17] total 29 [2018-04-11 20:34:43,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 20:34:43,804 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 20:34:43,805 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=793, Unknown=0, NotChecked=0, Total=870 [2018-04-11 20:34:43,805 INFO L87 Difference]: Start difference. First operand 133 states and 158 transitions. Second operand 30 states. [2018-04-11 20:34:44,449 WARN L151 SmtUtils]: Spent 133ms on a formula simplification. DAG size of input: 55 DAG size of output 39 [2018-04-11 20:34:45,337 WARN L151 SmtUtils]: Spent 332ms on a formula simplification. DAG size of input: 68 DAG size of output 52 [2018-04-11 20:34:45,673 WARN L151 SmtUtils]: Spent 277ms on a formula simplification. DAG size of input: 74 DAG size of output 55 [2018-04-11 20:34:45,843 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 78 DAG size of output 61 [2018-04-11 20:34:46,217 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 58 DAG size of output 47 [2018-04-11 20:34:46,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:46,845 INFO L93 Difference]: Finished difference Result 136 states and 160 transitions. [2018-04-11 20:34:46,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-11 20:34:46,845 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 41 [2018-04-11 20:34:46,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:46,846 INFO L225 Difference]: With dead ends: 136 [2018-04-11 20:34:46,846 INFO L226 Difference]: Without dead ends: 101 [2018-04-11 20:34:46,846 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=269, Invalid=1801, Unknown=0, NotChecked=0, Total=2070 [2018-04-11 20:34:46,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-04-11 20:34:46,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 69. [2018-04-11 20:34:46,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-11 20:34:46,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2018-04-11 20:34:46,848 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 41 [2018-04-11 20:34:46,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:46,848 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2018-04-11 20:34:46,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-11 20:34:46,848 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2018-04-11 20:34:46,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-11 20:34:46,848 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:46,848 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 20:34:46,849 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 20:34:46,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1135874677, now seen corresponding path program 1 times [2018-04-11 20:34:46,849 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:46,849 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:46,849 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:46,849 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:34:46,849 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:46,856 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:47,036 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 20:34:47,037 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:47,037 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-04-11 20:34:47,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-11 20:34:47,037 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-11 20:34:47,037 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2018-04-11 20:34:47,037 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 16 states. [2018-04-11 20:34:47,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:47,351 INFO L93 Difference]: Finished difference Result 125 states and 137 transitions. [2018-04-11 20:34:47,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-11 20:34:47,351 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 43 [2018-04-11 20:34:47,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:47,352 INFO L225 Difference]: With dead ends: 125 [2018-04-11 20:34:47,352 INFO L226 Difference]: Without dead ends: 125 [2018-04-11 20:34:47,352 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 20:34:47,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-04-11 20:34:47,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 100. [2018-04-11 20:34:47,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-04-11 20:34:47,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 126 transitions. [2018-04-11 20:34:47,354 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 126 transitions. Word has length 43 [2018-04-11 20:34:47,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:47,354 INFO L459 AbstractCegarLoop]: Abstraction has 100 states and 126 transitions. [2018-04-11 20:34:47,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-11 20:34:47,354 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 126 transitions. [2018-04-11 20:34:47,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-11 20:34:47,354 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:47,354 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 20:34:47,354 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 20:34:47,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1135874676, now seen corresponding path program 1 times [2018-04-11 20:34:47,355 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:47,355 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:47,355 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:47,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:47,355 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:47,360 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:47,388 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 20:34:47,388 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:47,388 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 20:34:47,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:34:47,388 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:34:47,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:34:47,389 INFO L87 Difference]: Start difference. First operand 100 states and 126 transitions. Second operand 7 states. [2018-04-11 20:34:47,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:47,433 INFO L93 Difference]: Finished difference Result 98 states and 120 transitions. [2018-04-11 20:34:47,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:34:47,433 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2018-04-11 20:34:47,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:47,433 INFO L225 Difference]: With dead ends: 98 [2018-04-11 20:34:47,433 INFO L226 Difference]: Without dead ends: 98 [2018-04-11 20:34:47,434 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 20:34:47,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-04-11 20:34:47,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-04-11 20:34:47,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-04-11 20:34:47,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 120 transitions. [2018-04-11 20:34:47,437 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 120 transitions. Word has length 43 [2018-04-11 20:34:47,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:47,437 INFO L459 AbstractCegarLoop]: Abstraction has 98 states and 120 transitions. [2018-04-11 20:34:47,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:34:47,437 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 120 transitions. [2018-04-11 20:34:47,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-11 20:34:47,437 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:47,438 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 20:34:47,438 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 20:34:47,438 INFO L82 PathProgramCache]: Analyzing trace with hash 653871061, now seen corresponding path program 1 times [2018-04-11 20:34:47,438 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:47,438 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:47,439 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:47,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:47,439 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:47,446 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:47,491 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 20:34:47,492 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:34:47,492 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 20:34:47,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:47,523 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:34:47,567 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 20:34:47,595 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 20:34:47,596 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2018-04-11 20:34:47,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 20:34:47,596 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 20:34:47,596 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-04-11 20:34:47,596 INFO L87 Difference]: Start difference. First operand 98 states and 120 transitions. Second operand 11 states. [2018-04-11 20:34:47,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:47,723 INFO L93 Difference]: Finished difference Result 97 states and 117 transitions. [2018-04-11 20:34:47,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:34:47,723 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2018-04-11 20:34:47,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:47,724 INFO L225 Difference]: With dead ends: 97 [2018-04-11 20:34:47,724 INFO L226 Difference]: Without dead ends: 97 [2018-04-11 20:34:47,724 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 20:34:47,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-04-11 20:34:47,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-04-11 20:34:47,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-04-11 20:34:47,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 117 transitions. [2018-04-11 20:34:47,727 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 117 transitions. Word has length 45 [2018-04-11 20:34:47,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:47,727 INFO L459 AbstractCegarLoop]: Abstraction has 97 states and 117 transitions. [2018-04-11 20:34:47,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 20:34:47,727 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 117 transitions. [2018-04-11 20:34:47,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-11 20:34:47,727 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:47,728 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 20:34:47,728 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 20:34:47,728 INFO L82 PathProgramCache]: Analyzing trace with hash 653871062, now seen corresponding path program 1 times [2018-04-11 20:34:47,728 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:47,728 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:47,728 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:47,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:47,729 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:47,738 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:47,873 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 20:34:47,874 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:34:47,874 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 20:34:47,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:47,899 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:34:48,018 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 20:34:48,038 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:34:48,038 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21 [2018-04-11 20:34:48,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 20:34:48,038 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 20:34:48,039 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2018-04-11 20:34:48,039 INFO L87 Difference]: Start difference. First operand 97 states and 117 transitions. Second operand 22 states. [2018-04-11 20:34:48,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:48,311 INFO L93 Difference]: Finished difference Result 141 states and 170 transitions. [2018-04-11 20:34:48,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 20:34:48,312 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 45 [2018-04-11 20:34:48,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:48,312 INFO L225 Difference]: With dead ends: 141 [2018-04-11 20:34:48,312 INFO L226 Difference]: Without dead ends: 141 [2018-04-11 20:34:48,313 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=933, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 20:34:48,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-04-11 20:34:48,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 118. [2018-04-11 20:34:48,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-04-11 20:34:48,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 149 transitions. [2018-04-11 20:34:48,315 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 149 transitions. Word has length 45 [2018-04-11 20:34:48,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:48,315 INFO L459 AbstractCegarLoop]: Abstraction has 118 states and 149 transitions. [2018-04-11 20:34:48,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 20:34:48,315 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 149 transitions. [2018-04-11 20:34:48,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 20:34:48,315 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:48,315 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 20:34:48,315 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 20:34:48,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1304865494, now seen corresponding path program 1 times [2018-04-11 20:34:48,315 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:48,315 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:48,316 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:48,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:48,316 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:48,324 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:48,365 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 20:34:48,365 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:48,365 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 20:34:48,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 20:34:48,366 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 20:34:48,366 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:34:48,366 INFO L87 Difference]: Start difference. First operand 118 states and 149 transitions. Second operand 8 states. [2018-04-11 20:34:48,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:48,430 INFO L93 Difference]: Finished difference Result 117 states and 145 transitions. [2018-04-11 20:34:48,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 20:34:48,430 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2018-04-11 20:34:48,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:48,431 INFO L225 Difference]: With dead ends: 117 [2018-04-11 20:34:48,432 INFO L226 Difference]: Without dead ends: 117 [2018-04-11 20:34:48,432 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 20:34:48,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-04-11 20:34:48,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-04-11 20:34:48,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-04-11 20:34:48,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 145 transitions. [2018-04-11 20:34:48,435 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 145 transitions. Word has length 47 [2018-04-11 20:34:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:48,435 INFO L459 AbstractCegarLoop]: Abstraction has 117 states and 145 transitions. [2018-04-11 20:34:48,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 20:34:48,435 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 145 transitions. [2018-04-11 20:34:48,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 20:34:48,435 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:48,435 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 20:34:48,435 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 20:34:48,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1304865495, now seen corresponding path program 1 times [2018-04-11 20:34:48,436 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:48,436 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:48,436 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:48,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:48,436 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:48,445 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:48,557 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 20:34:48,557 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:34:48,557 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-11 20:34:48,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:34:48,557 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:34:48,557 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:34:48,557 INFO L87 Difference]: Start difference. First operand 117 states and 145 transitions. Second operand 12 states. [2018-04-11 20:34:48,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:48,681 INFO L93 Difference]: Finished difference Result 119 states and 143 transitions. [2018-04-11 20:34:48,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 20:34:48,682 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2018-04-11 20:34:48,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:48,682 INFO L225 Difference]: With dead ends: 119 [2018-04-11 20:34:48,682 INFO L226 Difference]: Without dead ends: 119 [2018-04-11 20:34:48,683 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 20:34:48,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-04-11 20:34:48,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 114. [2018-04-11 20:34:48,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-04-11 20:34:48,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 138 transitions. [2018-04-11 20:34:48,686 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 138 transitions. Word has length 47 [2018-04-11 20:34:48,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:48,686 INFO L459 AbstractCegarLoop]: Abstraction has 114 states and 138 transitions. [2018-04-11 20:34:48,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:34:48,686 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 138 transitions. [2018-04-11 20:34:48,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-11 20:34:48,687 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:48,687 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 20:34:48,687 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 20:34:48,687 INFO L82 PathProgramCache]: Analyzing trace with hash -504893548, now seen corresponding path program 1 times [2018-04-11 20:34:48,687 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:48,687 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:48,688 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:48,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:48,688 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:48,698 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:49,032 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 20:34:49,032 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:34:49,033 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 20:34:49,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:49,056 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:34:49,058 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 20:34:49,058 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:49,062 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 6 treesize of output 5 [2018-04-11 20:34:49,062 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:49,064 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:49,064 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:34:49,080 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:34:49,081 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 20:34:49,081 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:49,087 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:34:49,088 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:34:49,088 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 20:34:49,088 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:49,091 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:49,091 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 20:34:49,123 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 20:34:49,124 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 20:34:49,124 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:49,125 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:49,127 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:49,127 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-11 20:34:49,148 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 20:34:49,150 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 20:34:49,150 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:49,152 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:49,156 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 20:34:49,156 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2018-04-11 20:34:49,477 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 20:34:49,482 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 20:34:49,482 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:34:49,488 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 20:34:49,488 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:49,491 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:34:49,497 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 20:34:49,497 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:45, output treesize:32 [2018-04-11 20:34:49,587 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 20:34:49,604 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:34:49,604 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18] total 29 [2018-04-11 20:34:49,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 20:34:49,604 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 20:34:49,604 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2018-04-11 20:34:49,604 INFO L87 Difference]: Start difference. First operand 114 states and 138 transitions. Second operand 30 states. [2018-04-11 20:34:50,129 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 63 DAG size of output 49 [2018-04-11 20:34:50,509 WARN L151 SmtUtils]: Spent 221ms on a formula simplification. DAG size of input: 61 DAG size of output 45 [2018-04-11 20:34:52,613 WARN L151 SmtUtils]: Spent 2077ms on a formula simplification. DAG size of input: 69 DAG size of output 51 [2018-04-11 20:34:52,764 WARN L151 SmtUtils]: Spent 124ms on a formula simplification. DAG size of input: 73 DAG size of output 56 [2018-04-11 20:34:55,176 WARN L151 SmtUtils]: Spent 2057ms on a formula simplification. DAG size of input: 48 DAG size of output 38 [2018-04-11 20:34:55,354 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 59 DAG size of output 47 [2018-04-11 20:34:55,485 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 63 DAG size of output 52 [2018-04-11 20:34:55,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:55,726 INFO L93 Difference]: Finished difference Result 133 states and 152 transitions. [2018-04-11 20:34:55,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-11 20:34:55,727 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 48 [2018-04-11 20:34:55,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:55,727 INFO L225 Difference]: With dead ends: 133 [2018-04-11 20:34:55,727 INFO L226 Difference]: Without dead ends: 133 [2018-04-11 20:34:55,728 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=279, Invalid=1977, Unknown=0, NotChecked=0, Total=2256 [2018-04-11 20:34:55,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-04-11 20:34:55,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 76. [2018-04-11 20:34:55,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-04-11 20:34:55,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2018-04-11 20:34:55,730 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 48 [2018-04-11 20:34:55,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:55,730 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2018-04-11 20:34:55,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-11 20:34:55,731 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2018-04-11 20:34:55,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-11 20:34:55,731 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:55,731 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 20:34:55,731 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 20:34:55,731 INFO L82 PathProgramCache]: Analyzing trace with hash -154986537, now seen corresponding path program 1 times [2018-04-11 20:34:55,731 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:55,732 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:55,732 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:55,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:55,732 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:55,740 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:55,773 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 20:34:55,774 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:34:55,774 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 20:34:55,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:55,807 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:34:55,848 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 20:34:55,865 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 20:34:55,865 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 10 [2018-04-11 20:34:55,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 20:34:55,866 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 20:34:55,866 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-04-11 20:34:55,866 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 11 states. [2018-04-11 20:34:55,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:55,936 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2018-04-11 20:34:55,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:34:55,936 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2018-04-11 20:34:55,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:55,937 INFO L225 Difference]: With dead ends: 75 [2018-04-11 20:34:55,937 INFO L226 Difference]: Without dead ends: 75 [2018-04-11 20:34:55,937 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 20:34:55,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-04-11 20:34:55,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-04-11 20:34:55,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-11 20:34:55,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2018-04-11 20:34:55,939 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 49 [2018-04-11 20:34:55,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:55,939 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2018-04-11 20:34:55,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 20:34:55,939 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2018-04-11 20:34:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-11 20:34:55,940 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:55,940 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 20:34:55,940 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 20:34:55,940 INFO L82 PathProgramCache]: Analyzing trace with hash -154986536, now seen corresponding path program 1 times [2018-04-11 20:34:55,940 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:55,940 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:55,940 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:55,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:55,940 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:55,947 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:56,083 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 20:34:56,083 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:34:56,083 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 20:34:56,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:56,104 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:34:56,217 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 20:34:56,234 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:34:56,234 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 23 [2018-04-11 20:34:56,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-11 20:34:56,235 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-11 20:34:56,235 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2018-04-11 20:34:56,235 INFO L87 Difference]: Start difference. First operand 75 states and 85 transitions. Second operand 24 states. [2018-04-11 20:34:56,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:34:56,533 INFO L93 Difference]: Finished difference Result 106 states and 118 transitions. [2018-04-11 20:34:56,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 20:34:56,533 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 49 [2018-04-11 20:34:56,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:34:56,533 INFO L225 Difference]: With dead ends: 106 [2018-04-11 20:34:56,533 INFO L226 Difference]: Without dead ends: 106 [2018-04-11 20:34:56,534 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 20:34:56,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-04-11 20:34:56,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2018-04-11 20:34:56,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-11 20:34:56,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions. [2018-04-11 20:34:56,535 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 49 [2018-04-11 20:34:56,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:34:56,535 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions. [2018-04-11 20:34:56,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-11 20:34:56,536 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions. [2018-04-11 20:34:56,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-04-11 20:34:56,536 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:34:56,536 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 20:34:56,536 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 20:34:56,536 INFO L82 PathProgramCache]: Analyzing trace with hash -446349253, now seen corresponding path program 1 times [2018-04-11 20:34:56,536 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:34:56,536 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:34:56,537 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:56,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:56,537 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:34:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:56,542 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:34:56,621 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 20:34:56,621 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:34:56,621 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 20:34:56,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:34:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:34:56,662 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:34:56,669 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 20:34:56,670 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:56,675 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 20:34:56,675 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:56,677 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:56,678 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:34:56,697 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:34:56,698 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 20:34:56,698 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:56,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:34:56,705 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:34:56,705 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 20:34:56,705 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:56,709 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:56,709 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 20:34:56,732 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 20:34:56,733 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 20:34:56,733 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:56,734 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:56,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:56,737 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-11 20:34:56,753 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 20:34:56,754 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 20:34:56,754 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:56,757 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:34:56,760 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 20:34:56,760 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 20:34:57,246 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 42 DAG size of output 25 [2018-04-11 20:34:57,600 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 20:34:57,607 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 20:34:57,607 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:34:57,618 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 20:34:57,618 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:34:57,626 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:34:57,642 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 20:34:57,642 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:60, output treesize:42 [2018-04-11 20:34:57,718 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 20:34:57,737 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:34:57,737 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 22] total 31 [2018-04-11 20:34:57,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-04-11 20:34:57,738 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-04-11 20:34:57,738 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=852, Unknown=0, NotChecked=0, Total=930 [2018-04-11 20:34:57,738 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand 31 states. [2018-04-11 20:35:00,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:35:00,350 INFO L93 Difference]: Finished difference Result 135 states and 149 transitions. [2018-04-11 20:35:00,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-11 20:35:00,351 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 52 [2018-04-11 20:35:00,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:35:00,365 INFO L225 Difference]: With dead ends: 135 [2018-04-11 20:35:00,365 INFO L226 Difference]: Without dead ends: 96 [2018-04-11 20:35:00,366 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=367, Invalid=3793, Unknown=0, NotChecked=0, Total=4160 [2018-04-11 20:35:00,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-04-11 20:35:00,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 83. [2018-04-11 20:35:00,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-04-11 20:35:00,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2018-04-11 20:35:00,368 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 52 [2018-04-11 20:35:00,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:35:00,368 INFO L459 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2018-04-11 20:35:00,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-04-11 20:35:00,368 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2018-04-11 20:35:00,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-04-11 20:35:00,369 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:35:00,369 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 20:35:00,369 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 20:35:00,369 INFO L82 PathProgramCache]: Analyzing trace with hash -34958984, now seen corresponding path program 2 times [2018-04-11 20:35:00,369 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:35:00,369 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:35:00,370 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:00,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:35:00,370 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:35:00,378 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:35:00,487 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 20:35:00,487 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:35:00,487 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 20:35:00,493 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 20:35:00,520 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 20:35:00,520 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:35:00,524 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:35:00,527 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 20:35:00,527 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:00,530 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 20:35:00,530 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:00,533 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:00,533 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:35:00,556 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:35:00,556 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:35:00,557 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 20:35:00,557 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:00,563 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 20:35:00,563 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:00,567 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:00,567 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-11 20:35:00,600 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 20:35:00,602 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 20:35:00,602 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:00,603 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:00,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:00,608 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2018-04-11 20:35:00,629 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 20:35:00,631 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 20:35:00,631 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:00,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:00,643 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:00,643 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:42, output treesize:38 [2018-04-11 20:35:02,076 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 20:35:02,078 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 20:35:02,078 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:02,089 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 20:35:02,089 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 20:35:02,096 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:35:02,115 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 20:35:02,116 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:68, output treesize:81 [2018-04-11 20:35:02,406 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 20:35:02,423 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:35:02,423 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 24] total 35 [2018-04-11 20:35:02,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-11 20:35:02,424 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-11 20:35:02,424 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1102, Unknown=0, NotChecked=0, Total=1190 [2018-04-11 20:35:02,424 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand 35 states. [2018-04-11 20:35:05,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:35:05,346 INFO L93 Difference]: Finished difference Result 176 states and 196 transitions. [2018-04-11 20:35:05,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-04-11 20:35:05,346 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 65 [2018-04-11 20:35:05,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:35:05,347 INFO L225 Difference]: With dead ends: 176 [2018-04-11 20:35:05,347 INFO L226 Difference]: Without dead ends: 117 [2018-04-11 20:35:05,347 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=380, Invalid=4590, Unknown=0, NotChecked=0, Total=4970 [2018-04-11 20:35:05,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-04-11 20:35:05,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 93. [2018-04-11 20:35:05,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-04-11 20:35:05,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2018-04-11 20:35:05,349 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 65 [2018-04-11 20:35:05,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:35:05,349 INFO L459 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2018-04-11 20:35:05,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-11 20:35:05,349 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2018-04-11 20:35:05,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-04-11 20:35:05,349 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:35:05,350 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 20:35:05,350 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 20:35:05,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1058278372, now seen corresponding path program 1 times [2018-04-11 20:35:05,350 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:35:05,350 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:35:05,350 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:05,350 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:35:05,350 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:35:05,364 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:35:05,576 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 20:35:05,576 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:35:05,576 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 20:35:05,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:35:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:35:05,603 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:35:05,627 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 20:35:05,645 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:35:05,645 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 19 [2018-04-11 20:35:05,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 20:35:05,646 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 20:35:05,646 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2018-04-11 20:35:05,646 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand 20 states. [2018-04-11 20:35:05,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:35:05,979 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2018-04-11 20:35:05,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 20:35:05,979 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 71 [2018-04-11 20:35:05,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:35:05,980 INFO L225 Difference]: With dead ends: 112 [2018-04-11 20:35:05,980 INFO L226 Difference]: Without dead ends: 112 [2018-04-11 20:35:05,980 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 20:35:05,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-04-11 20:35:05,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 95. [2018-04-11 20:35:05,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-04-11 20:35:05,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 107 transitions. [2018-04-11 20:35:05,983 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 107 transitions. Word has length 71 [2018-04-11 20:35:05,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:35:05,983 INFO L459 AbstractCegarLoop]: Abstraction has 95 states and 107 transitions. [2018-04-11 20:35:05,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 20:35:05,983 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 107 transitions. [2018-04-11 20:35:05,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-11 20:35:05,983 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:35:05,983 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 20:35:05,983 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 20:35:05,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1017499362, now seen corresponding path program 1 times [2018-04-11 20:35:05,984 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:35:05,984 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:35:05,984 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:05,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:35:05,984 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:35:05,995 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:35:06,272 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 20:35:06,272 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:35:06,272 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 20:35:06,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:35:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:35:06,367 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:35:06,397 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 20:35:06,415 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:35:06,415 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 20 [2018-04-11 20:35:06,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 20:35:06,415 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 20:35:06,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2018-04-11 20:35:06,416 INFO L87 Difference]: Start difference. First operand 95 states and 107 transitions. Second operand 21 states. [2018-04-11 20:35:06,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:35:06,898 INFO L93 Difference]: Finished difference Result 127 states and 142 transitions. [2018-04-11 20:35:06,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 20:35:06,898 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 75 [2018-04-11 20:35:06,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:35:06,898 INFO L225 Difference]: With dead ends: 127 [2018-04-11 20:35:06,899 INFO L226 Difference]: Without dead ends: 127 [2018-04-11 20:35:06,899 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2018-04-11 20:35:06,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-04-11 20:35:06,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 96. [2018-04-11 20:35:06,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-04-11 20:35:06,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2018-04-11 20:35:06,901 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 75 [2018-04-11 20:35:06,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:35:06,901 INFO L459 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2018-04-11 20:35:06,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 20:35:06,901 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2018-04-11 20:35:06,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 20:35:06,901 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:35:06,902 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 20:35:06,902 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 20:35:06,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1223383349, now seen corresponding path program 3 times [2018-04-11 20:35:06,902 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:35:06,902 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:35:06,902 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:06,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:35:06,903 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:35:06,915 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:35:07,080 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 20:35:07,080 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:35:07,081 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 20:35:07,089 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 20:35:07,162 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-11 20:35:07,162 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:35:07,169 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:35:07,173 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 20:35:07,173 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:07,179 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 20:35:07,179 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:07,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:07,183 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:35:07,223 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:35:07,224 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:35:07,225 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 20:35:07,225 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:07,234 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 20:35:07,235 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:07,242 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:07,242 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-11 20:35:07,291 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 20:35:07,292 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 20:35:07,293 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:07,294 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:07,299 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:07,299 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2018-04-11 20:35:07,346 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 20:35:07,350 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 20:35:07,351 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:07,354 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:07,360 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:07,360 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:39, output treesize:35 [2018-04-11 20:35:08,202 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 20:35:08,203 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 20:35:08,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:08,212 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 20:35:08,212 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 20:35:08,216 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:35:08,225 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 20:35:08,225 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:52, output treesize:52 [2018-04-11 20:35:08,380 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 20:35:08,398 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:35:08,398 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 29] total 42 [2018-04-11 20:35:08,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-11 20:35:08,398 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-11 20:35:08,399 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1617, Unknown=0, NotChecked=0, Total=1722 [2018-04-11 20:35:08,399 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand 42 states. [2018-04-11 20:35:12,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:35:12,063 INFO L93 Difference]: Finished difference Result 333 states and 380 transitions. [2018-04-11 20:35:12,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-04-11 20:35:12,063 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 78 [2018-04-11 20:35:12,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:35:12,064 INFO L225 Difference]: With dead ends: 333 [2018-04-11 20:35:12,064 INFO L226 Difference]: Without dead ends: 193 [2018-04-11 20:35:12,066 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1639 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=526, Invalid=8216, Unknown=0, NotChecked=0, Total=8742 [2018-04-11 20:35:12,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-04-11 20:35:12,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 157. [2018-04-11 20:35:12,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-04-11 20:35:12,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 187 transitions. [2018-04-11 20:35:12,069 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 187 transitions. Word has length 78 [2018-04-11 20:35:12,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:35:12,069 INFO L459 AbstractCegarLoop]: Abstraction has 157 states and 187 transitions. [2018-04-11 20:35:12,069 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-11 20:35:12,069 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 187 transitions. [2018-04-11 20:35:12,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-11 20:35:12,070 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:35:12,070 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 20:35:12,070 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 20:35:12,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1276287347, now seen corresponding path program 2 times [2018-04-11 20:35:12,070 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:35:12,071 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:35:12,071 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:12,071 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:35:12,071 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:35:12,083 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:35:12,319 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 20:35:12,319 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:35:12,320 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 20:35:12,325 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 20:35:12,358 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 20:35:12,358 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:35:12,361 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:35:12,364 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 20:35:12,364 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:12,366 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:12,367 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 20:35:12,535 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 20:35:12,552 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:35:12,552 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19] total 29 [2018-04-11 20:35:12,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-11 20:35:12,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-11 20:35:12,553 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2018-04-11 20:35:12,553 INFO L87 Difference]: Start difference. First operand 157 states and 187 transitions. Second operand 30 states. [2018-04-11 20:35:13,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:35:13,016 INFO L93 Difference]: Finished difference Result 213 states and 247 transitions. [2018-04-11 20:35:13,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-04-11 20:35:13,016 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 84 [2018-04-11 20:35:13,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:35:13,017 INFO L225 Difference]: With dead ends: 213 [2018-04-11 20:35:13,017 INFO L226 Difference]: Without dead ends: 213 [2018-04-11 20:35:13,018 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 20:35:13,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2018-04-11 20:35:13,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 167. [2018-04-11 20:35:13,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-04-11 20:35:13,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 200 transitions. [2018-04-11 20:35:13,021 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 200 transitions. Word has length 84 [2018-04-11 20:35:13,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:35:13,021 INFO L459 AbstractCegarLoop]: Abstraction has 167 states and 200 transitions. [2018-04-11 20:35:13,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-11 20:35:13,021 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 200 transitions. [2018-04-11 20:35:13,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-04-11 20:35:13,022 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:35:13,022 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 20:35:13,022 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 20:35:13,022 INFO L82 PathProgramCache]: Analyzing trace with hash -466599547, now seen corresponding path program 1 times [2018-04-11 20:35:13,022 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:35:13,022 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:35:13,022 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:13,023 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:35:13,023 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:35:13,044 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:35:13,293 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 20:35:13,294 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:35:13,312 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 20:35:13,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:35:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:35:13,354 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:35:13,356 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 20:35:13,356 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:13,360 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 20:35:13,360 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:13,363 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:13,363 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:35:13,369 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:35:13,369 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 20:35:13,369 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:13,374 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:35:13,375 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:35:13,375 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 20:35:13,375 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:13,378 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:13,378 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 20:35:13,403 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 20:35:13,404 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 20:35:13,404 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:13,405 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:13,408 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:13,408 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-11 20:35:13,424 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 20:35:13,425 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 20:35:13,425 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:13,429 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:13,432 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 20:35:13,432 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 20:35:14,304 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 20:35:14,306 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 20:35:14,306 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:14,317 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 20:35:14,317 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 20:35:14,322 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:35:14,333 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 20:35:14,333 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:60, output treesize:42 [2018-04-11 20:35:14,427 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 20:35:14,443 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:35:14,443 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 29] total 42 [2018-04-11 20:35:14,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-11 20:35:14,444 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-11 20:35:14,444 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1654, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 20:35:14,444 INFO L87 Difference]: Start difference. First operand 167 states and 200 transitions. Second operand 43 states. [2018-04-11 20:35:17,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:35:17,812 INFO L93 Difference]: Finished difference Result 217 states and 247 transitions. [2018-04-11 20:35:17,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-04-11 20:35:17,812 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 87 [2018-04-11 20:35:17,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:35:17,813 INFO L225 Difference]: With dead ends: 217 [2018-04-11 20:35:17,813 INFO L226 Difference]: Without dead ends: 217 [2018-04-11 20:35:17,814 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1644 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=698, Invalid=6274, Unknown=0, NotChecked=0, Total=6972 [2018-04-11 20:35:17,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-04-11 20:35:17,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 107. [2018-04-11 20:35:17,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-04-11 20:35:17,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2018-04-11 20:35:17,815 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 87 [2018-04-11 20:35:17,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:35:17,816 INFO L459 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2018-04-11 20:35:17,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-11 20:35:17,816 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2018-04-11 20:35:17,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-04-11 20:35:17,816 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:35:17,816 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 20:35:17,816 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 20:35:17,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1701860085, now seen corresponding path program 2 times [2018-04-11 20:35:17,816 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:35:17,816 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:35:17,817 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:17,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:35:17,817 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:35:17,829 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:35:18,032 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 20:35:18,033 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:35:18,033 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 20:35:18,038 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 20:35:18,055 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-04-11 20:35:18,055 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:35:18,057 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:35:18,097 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 20:35:18,114 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 20:35:18,114 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 21 [2018-04-11 20:35:18,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 20:35:18,115 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 20:35:18,115 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2018-04-11 20:35:18,115 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 22 states. [2018-04-11 20:35:18,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:35:18,594 INFO L93 Difference]: Finished difference Result 151 states and 169 transitions. [2018-04-11 20:35:18,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-11 20:35:18,594 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 88 [2018-04-11 20:35:18,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:35:18,594 INFO L225 Difference]: With dead ends: 151 [2018-04-11 20:35:18,594 INFO L226 Difference]: Without dead ends: 151 [2018-04-11 20:35:18,595 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 20:35:18,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-04-11 20:35:18,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 112. [2018-04-11 20:35:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-04-11 20:35:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 130 transitions. [2018-04-11 20:35:18,596 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 130 transitions. Word has length 88 [2018-04-11 20:35:18,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:35:18,597 INFO L459 AbstractCegarLoop]: Abstraction has 112 states and 130 transitions. [2018-04-11 20:35:18,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 20:35:18,597 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 130 transitions. [2018-04-11 20:35:18,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-04-11 20:35:18,597 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:35:18,598 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 20:35:18,598 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 20:35:18,598 INFO L82 PathProgramCache]: Analyzing trace with hash -545146125, now seen corresponding path program 3 times [2018-04-11 20:35:18,598 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:35:18,598 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:35:18,598 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:18,598 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:35:18,599 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:35:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:35:18,608 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:35:18,797 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 20:35:18,797 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:35:18,797 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 20:35:18,805 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 20:35:18,890 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2018-04-11 20:35:18,890 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:35:18,894 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:35:18,932 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 20:35:18,933 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 20:35:18,933 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:18,934 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:18,936 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 20:35:18,937 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:17 [2018-04-11 20:35:21,210 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 18 [2018-04-11 20:35:25,252 WARN L151 SmtUtils]: Spent 4009ms on a formula simplification. DAG size of input: 27 DAG size of output 20 [2018-04-11 20:35:27,282 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-11 20:35:29,313 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-11 20:35:31,343 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-11 20:35:33,378 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-11 20:35:35,414 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 19 [2018-04-11 20:35:37,457 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-11 20:35:39,503 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 19 [2018-04-11 20:35:41,561 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-11 20:35:43,612 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 19 [2018-04-11 20:35:45,648 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 19 [2018-04-11 20:35:47,686 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 18 [2018-04-11 20:35:49,729 WARN L148 SmtUtils]: Spent 2005ms on a formula simplification that was a NOOP. DAG size: 23 [2018-04-11 20:35:51,771 WARN L148 SmtUtils]: Spent 2005ms on a formula simplification that was a NOOP. DAG size: 23 [2018-04-11 20:35:51,925 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 35 treesize of output 33 [2018-04-11 20:35:51,927 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 29 treesize of output 22 [2018-04-11 20:35:51,927 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:51,936 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 0 case distinctions, treesize of input 22 treesize of output 8 [2018-04-11 20:35:51,936 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:51,942 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 0 case distinctions, treesize of input 18 treesize of output 3 [2018-04-11 20:35:51,943 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:35:51,945 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:51,946 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:35:51,946 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:35, output treesize:3 [2018-04-11 20:35:52,012 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 20:35:52,031 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:35:52,031 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 34] total 48 [2018-04-11 20:35:52,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-04-11 20:35:52,031 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-04-11 20:35:52,032 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2131, Unknown=0, NotChecked=0, Total=2256 [2018-04-11 20:35:52,032 INFO L87 Difference]: Start difference. First operand 112 states and 130 transitions. Second operand 48 states. [2018-04-11 20:35:54,668 WARN L148 SmtUtils]: Spent 2012ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-11 20:35:56,738 WARN L148 SmtUtils]: Spent 2010ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-11 20:35:58,836 WARN L148 SmtUtils]: Spent 2015ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:36:00,893 WARN L148 SmtUtils]: Spent 2014ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:36:02,949 WARN L148 SmtUtils]: Spent 2013ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:36:05,015 WARN L148 SmtUtils]: Spent 2006ms on a formula simplification that was a NOOP. DAG size: 23 [2018-04-11 20:36:09,114 WARN L148 SmtUtils]: Spent 4014ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-11 20:36:13,228 WARN L148 SmtUtils]: Spent 4014ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-11 20:36:17,364 WARN L148 SmtUtils]: Spent 4013ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-11 20:36:21,505 WARN L148 SmtUtils]: Spent 4014ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-11 20:36:25,700 WARN L148 SmtUtils]: Spent 4022ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-11 20:36:29,801 WARN L148 SmtUtils]: Spent 4014ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-11 20:36:33,923 WARN L148 SmtUtils]: Spent 4014ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-11 20:36:38,090 WARN L148 SmtUtils]: Spent 4014ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-11 20:36:42,189 WARN L148 SmtUtils]: Spent 4015ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-11 20:36:46,313 WARN L148 SmtUtils]: Spent 4013ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-11 20:36:50,471 WARN L148 SmtUtils]: Spent 4013ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-11 20:36:54,588 WARN L148 SmtUtils]: Spent 4023ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-11 20:36:58,704 WARN L148 SmtUtils]: Spent 4014ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-11 20:37:02,792 WARN L148 SmtUtils]: Spent 4011ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-11 20:37:02,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:37:02,857 INFO L93 Difference]: Finished difference Result 292 states and 335 transitions. [2018-04-11 20:37:02,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-04-11 20:37:02,857 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 102 [2018-04-11 20:37:02,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:37:02,858 INFO L225 Difference]: With dead ends: 292 [2018-04-11 20:37:02,858 INFO L226 Difference]: Without dead ends: 119 [2018-04-11 20:37:02,859 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 102.4s TimeCoverageRelationStatistics Valid=427, Invalid=7055, Unknown=0, NotChecked=0, Total=7482 [2018-04-11 20:37:02,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-04-11 20:37:02,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 116. [2018-04-11 20:37:02,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-04-11 20:37:02,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2018-04-11 20:37:02,861 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 102 [2018-04-11 20:37:02,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:37:02,861 INFO L459 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2018-04-11 20:37:02,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-04-11 20:37:02,861 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2018-04-11 20:37:02,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-04-11 20:37:02,862 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:37:02,862 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 20:37:02,862 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 20:37:02,862 INFO L82 PathProgramCache]: Analyzing trace with hash -2075901424, now seen corresponding path program 4 times [2018-04-11 20:37:02,862 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:37:02,863 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:37:02,863 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:02,863 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:37:02,863 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:37:02,877 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:37:03,102 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 20:37:03,102 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:37:03,102 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 20:37:03,108 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 20:37:03,147 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 20:37:03,147 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:37:03,152 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:37:03,478 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 20:37:03,495 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:37:03,495 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 36 [2018-04-11 20:37:03,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-04-11 20:37:03,496 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-04-11 20:37:03,496 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2018-04-11 20:37:03,496 INFO L87 Difference]: Start difference. First operand 116 states and 134 transitions. Second operand 36 states. [2018-04-11 20:37:04,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:37:04,936 INFO L93 Difference]: Finished difference Result 280 states and 318 transitions. [2018-04-11 20:37:04,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-04-11 20:37:04,936 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 106 [2018-04-11 20:37:04,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:37:04,937 INFO L225 Difference]: With dead ends: 280 [2018-04-11 20:37:04,937 INFO L226 Difference]: Without dead ends: 168 [2018-04-11 20:37:04,937 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 20:37:04,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-04-11 20:37:04,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 129. [2018-04-11 20:37:04,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-04-11 20:37:04,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2018-04-11 20:37:04,940 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 106 [2018-04-11 20:37:04,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:37:04,941 INFO L459 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2018-04-11 20:37:04,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-04-11 20:37:04,941 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2018-04-11 20:37:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-04-11 20:37:04,941 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:37:04,941 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 20:37:04,942 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 20:37:04,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1511568165, now seen corresponding path program 5 times [2018-04-11 20:37:04,942 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:37:04,942 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:37:04,943 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:04,943 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:37:04,943 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:37:04,959 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:37:05,235 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 20:37:05,235 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:37:05,235 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 20:37:05,243 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-11 20:37:05,595 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-04-11 20:37:05,596 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:37:05,602 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:37:06,002 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 20:37:06,020 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:37:06,020 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21] total 40 [2018-04-11 20:37:06,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-04-11 20:37:06,020 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-04-11 20:37:06,020 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1461, Unknown=0, NotChecked=0, Total=1560 [2018-04-11 20:37:06,020 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand 40 states. [2018-04-11 20:37:07,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:37:07,800 INFO L93 Difference]: Finished difference Result 319 states and 363 transitions. [2018-04-11 20:37:07,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-04-11 20:37:07,800 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 119 [2018-04-11 20:37:07,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:37:07,801 INFO L225 Difference]: With dead ends: 319 [2018-04-11 20:37:07,801 INFO L226 Difference]: Without dead ends: 188 [2018-04-11 20:37:07,801 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 20:37:07,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-04-11 20:37:07,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 142. [2018-04-11 20:37:07,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-04-11 20:37:07,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 166 transitions. [2018-04-11 20:37:07,803 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 166 transitions. Word has length 119 [2018-04-11 20:37:07,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:37:07,803 INFO L459 AbstractCegarLoop]: Abstraction has 142 states and 166 transitions. [2018-04-11 20:37:07,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-04-11 20:37:07,804 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 166 transitions. [2018-04-11 20:37:07,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-04-11 20:37:07,804 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:37:07,804 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 20:37:07,804 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 20:37:07,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1441814902, now seen corresponding path program 6 times [2018-04-11 20:37:07,804 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:37:07,804 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:37:07,805 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:07,805 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:37:07,805 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:37:07,815 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:37:08,068 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 20:37:08,068 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:37:08,068 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 20:37:08,073 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-11 20:37:08,177 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-04-11 20:37:08,178 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:37:08,182 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:37:08,184 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 20:37:08,184 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:37:08,185 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 20:37:08,185 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:6, output treesize:1 [2018-04-11 20:37:08,627 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 20:37:08,645 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:37:08,645 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2018-04-11 20:37:08,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-11 20:37:08,645 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-11 20:37:08,645 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1674, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 20:37:08,646 INFO L87 Difference]: Start difference. First operand 142 states and 166 transitions. Second operand 43 states. [2018-04-11 20:37:11,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:37:11,237 INFO L93 Difference]: Finished difference Result 382 states and 432 transitions. [2018-04-11 20:37:11,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-04-11 20:37:11,237 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 132 [2018-04-11 20:37:11,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:37:11,238 INFO L225 Difference]: With dead ends: 382 [2018-04-11 20:37:11,238 INFO L226 Difference]: Without dead ends: 220 [2018-04-11 20:37:11,239 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2712 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1124, Invalid=10866, Unknown=0, NotChecked=0, Total=11990 [2018-04-11 20:37:11,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-04-11 20:37:11,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 155. [2018-04-11 20:37:11,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-04-11 20:37:11,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 182 transitions. [2018-04-11 20:37:11,243 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 182 transitions. Word has length 132 [2018-04-11 20:37:11,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:37:11,243 INFO L459 AbstractCegarLoop]: Abstraction has 155 states and 182 transitions. [2018-04-11 20:37:11,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-11 20:37:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 182 transitions. [2018-04-11 20:37:11,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-04-11 20:37:11,244 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:37:11,244 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 20:37:11,244 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 20:37:11,244 INFO L82 PathProgramCache]: Analyzing trace with hash 2136271403, now seen corresponding path program 7 times [2018-04-11 20:37:11,244 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:37:11,244 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:37:11,244 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:11,245 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:37:11,245 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:37:11,257 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:37:11,582 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 20:37:11,582 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:37:11,582 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 20:37:11,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:37:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:37:11,640 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:37:12,196 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 20:37:12,213 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:37:12,213 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 25] total 48 [2018-04-11 20:37:12,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-04-11 20:37:12,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-04-11 20:37:12,214 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=2126, Unknown=0, NotChecked=0, Total=2256 [2018-04-11 20:37:12,214 INFO L87 Difference]: Start difference. First operand 155 states and 182 transitions. Second operand 48 states. [2018-04-11 20:37:14,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:37:14,792 INFO L93 Difference]: Finished difference Result 397 states and 453 transitions. [2018-04-11 20:37:14,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-04-11 20:37:14,793 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 145 [2018-04-11 20:37:14,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:37:14,793 INFO L225 Difference]: With dead ends: 397 [2018-04-11 20:37:14,793 INFO L226 Difference]: Without dead ends: 228 [2018-04-11 20:37:14,794 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1357 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=449, Invalid=7923, Unknown=0, NotChecked=0, Total=8372 [2018-04-11 20:37:14,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-04-11 20:37:14,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 168. [2018-04-11 20:37:14,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-04-11 20:37:14,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 198 transitions. [2018-04-11 20:37:14,796 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 198 transitions. Word has length 145 [2018-04-11 20:37:14,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:37:14,796 INFO L459 AbstractCegarLoop]: Abstraction has 168 states and 198 transitions. [2018-04-11 20:37:14,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-04-11 20:37:14,796 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 198 transitions. [2018-04-11 20:37:14,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-04-11 20:37:14,797 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:37:14,797 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 20:37:14,797 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 20:37:14,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1340707836, now seen corresponding path program 8 times [2018-04-11 20:37:14,797 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:37:14,797 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:37:14,797 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:14,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:37:14,797 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:37:14,808 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:37:15,191 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 20:37:15,191 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:37:15,191 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 20:37:15,198 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 20:37:15,266 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 20:37:15,266 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:37:15,270 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:37:15,959 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 20:37:15,985 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:37:15,985 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 29] total 54 [2018-04-11 20:37:15,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-04-11 20:37:15,986 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-04-11 20:37:15,986 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2711, Unknown=0, NotChecked=0, Total=2862 [2018-04-11 20:37:15,986 INFO L87 Difference]: Start difference. First operand 168 states and 198 transitions. Second operand 54 states. [2018-04-11 20:37:19,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:37:19,143 INFO L93 Difference]: Finished difference Result 436 states and 498 transitions. [2018-04-11 20:37:19,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-04-11 20:37:19,144 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 158 [2018-04-11 20:37:19,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:37:19,144 INFO L225 Difference]: With dead ends: 436 [2018-04-11 20:37:19,144 INFO L226 Difference]: Without dead ends: 248 [2018-04-11 20:37:19,145 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1743 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=522, Invalid=10190, Unknown=0, NotChecked=0, Total=10712 [2018-04-11 20:37:19,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-04-11 20:37:19,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 181. [2018-04-11 20:37:19,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-04-11 20:37:19,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 214 transitions. [2018-04-11 20:37:19,147 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 214 transitions. Word has length 158 [2018-04-11 20:37:19,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:37:19,147 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 214 transitions. [2018-04-11 20:37:19,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-04-11 20:37:19,147 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 214 transitions. [2018-04-11 20:37:19,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-04-11 20:37:19,148 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:37:19,148 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 20:37:19,148 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 20:37:19,148 INFO L82 PathProgramCache]: Analyzing trace with hash -581136335, now seen corresponding path program 9 times [2018-04-11 20:37:19,148 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:37:19,148 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:37:19,148 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:19,148 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:37:19,149 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:37:19,161 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:37:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 40 proven. 615 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:37:19,618 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:37:19,618 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 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:37:19,624 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 20:37:20,574 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-04-11 20:37:20,574 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:37:20,580 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:37:20,582 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 20:37:20,582 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:37:20,583 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 20:37:20,583 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:6, output treesize:1 [2018-04-11 20:37:21,268 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 200 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:37:21,288 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:37:21,297 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 55 [2018-04-11 20:37:21,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-04-11 20:37:21,297 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-04-11 20:37:21,297 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=2763, Unknown=0, NotChecked=0, Total=2970 [2018-04-11 20:37:21,298 INFO L87 Difference]: Start difference. First operand 181 states and 214 transitions. Second operand 55 states. [2018-04-11 20:37:25,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:37:25,358 INFO L93 Difference]: Finished difference Result 511 states and 579 transitions. [2018-04-11 20:37:25,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-04-11 20:37:25,358 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 171 [2018-04-11 20:37:25,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:37:25,359 INFO L225 Difference]: With dead ends: 511 [2018-04-11 20:37:25,359 INFO L226 Difference]: Without dead ends: 286 [2018-04-11 20:37:25,360 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5070 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1931, Invalid=19239, Unknown=0, NotChecked=0, Total=21170 [2018-04-11 20:37:25,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2018-04-11 20:37:25,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 194. [2018-04-11 20:37:25,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-04-11 20:37:25,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 230 transitions. [2018-04-11 20:37:25,362 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 230 transitions. Word has length 171 [2018-04-11 20:37:25,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:37:25,362 INFO L459 AbstractCegarLoop]: Abstraction has 194 states and 230 transitions. [2018-04-11 20:37:25,362 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-04-11 20:37:25,362 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 230 transitions. [2018-04-11 20:37:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-04-11 20:37:25,363 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:37:25,363 INFO L355 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:25,363 INFO L408 AbstractCegarLoop]: === Iteration 42 === [__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 20:37:25,363 INFO L82 PathProgramCache]: Analyzing trace with hash -533532034, now seen corresponding path program 10 times [2018-04-11 20:37:25,363 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:37:25,364 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:37:25,364 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:25,364 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:37:25,364 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:37:25,377 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:37:26,011 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 44 proven. 748 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:37:26,012 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:37:26,012 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:37:26,020 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 20:37:26,099 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 20:37:26,099 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:37:26,104 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:37:27,054 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 242 proven. 550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:37:27,073 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:37:27,073 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 31] total 60 [2018-04-11 20:37:27,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-04-11 20:37:27,074 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-04-11 20:37:27,074 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=3356, Unknown=0, NotChecked=0, Total=3540 [2018-04-11 20:37:27,074 INFO L87 Difference]: Start difference. First operand 194 states and 230 transitions. Second operand 60 states. [2018-04-11 20:37:31,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:37:31,060 INFO L93 Difference]: Finished difference Result 514 states and 588 transitions. [2018-04-11 20:37:31,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-04-11 20:37:31,060 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 184 [2018-04-11 20:37:31,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:37:31,061 INFO L225 Difference]: With dead ends: 514 [2018-04-11 20:37:31,061 INFO L226 Difference]: Without dead ends: 288 [2018-04-11 20:37:31,062 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2251 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=614, Invalid=12726, Unknown=0, NotChecked=0, Total=13340 [2018-04-11 20:37:31,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2018-04-11 20:37:31,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 207. [2018-04-11 20:37:31,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-04-11 20:37:31,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 246 transitions. [2018-04-11 20:37:31,064 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 246 transitions. Word has length 184 [2018-04-11 20:37:31,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:37:31,064 INFO L459 AbstractCegarLoop]: Abstraction has 207 states and 246 transitions. [2018-04-11 20:37:31,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-04-11 20:37:31,064 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 246 transitions. [2018-04-11 20:37:31,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-04-11 20:37:31,065 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:37:31,065 INFO L355 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:31,065 INFO L408 AbstractCegarLoop]: === Iteration 43 === [__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 20:37:31,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1941617353, now seen corresponding path program 11 times [2018-04-11 20:37:31,065 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:37:31,065 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:37:31,065 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:31,065 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:37:31,065 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:37:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:37:31,081 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:37:31,733 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 288 proven. 654 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:37:31,734 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:37:31,763 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 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:37:31,768 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-11 20:39:26,200 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2018-04-11 20:39:26,200 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:39:27,898 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:39:28,368 INFO L134 CoverageAnalysis]: Checked inductivity of 942 backedges. 288 proven. 654 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:39:28,387 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:39:28,387 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 35] total 54 [2018-04-11 20:39:28,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-04-11 20:39:28,388 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-04-11 20:39:28,388 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=2636, Unknown=0, NotChecked=0, Total=2970 [2018-04-11 20:39:28,388 INFO L87 Difference]: Start difference. First operand 207 states and 246 transitions. Second operand 55 states. [2018-04-11 20:39:30,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:39:30,186 INFO L93 Difference]: Finished difference Result 306 states and 349 transitions. [2018-04-11 20:39:30,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-04-11 20:39:30,186 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 197 [2018-04-11 20:39:30,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:39:30,187 INFO L225 Difference]: With dead ends: 306 [2018-04-11 20:39:30,187 INFO L226 Difference]: Without dead ends: 306 [2018-04-11 20:39:30,188 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1994 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=705, Invalid=6605, Unknown=0, NotChecked=0, Total=7310 [2018-04-11 20:39:30,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-04-11 20:39:30,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 216. [2018-04-11 20:39:30,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-04-11 20:39:30,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 258 transitions. [2018-04-11 20:39:30,190 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 258 transitions. Word has length 197 [2018-04-11 20:39:30,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:39:30,190 INFO L459 AbstractCegarLoop]: Abstraction has 216 states and 258 transitions. [2018-04-11 20:39:30,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-04-11 20:39:30,190 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 258 transitions. [2018-04-11 20:39:30,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-04-11 20:39:30,192 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:39:30,192 INFO L355 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:30,192 INFO L408 AbstractCegarLoop]: === Iteration 44 === [__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 20:39:30,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1530225701, now seen corresponding path program 12 times [2018-04-11 20:39:30,192 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:39:30,192 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:39:30,193 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:39:30,193 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:39:30,193 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:39:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:39:30,218 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:39:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 156 proven. 894 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 20:39:30,792 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:39:30,792 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 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:39:30,797 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-11 20:39:31,969 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2018-04-11 20:39:31,969 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:39:31,978 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:39:33,097 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 20:39:33,108 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 0 case distinctions, treesize of input 18 treesize of output 3 [2018-04-11 20:39:33,108 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:39:33,112 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:39:33,112 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:39:33,113 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:26, output treesize:3 [2018-04-11 20:39:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 76 proven. 978 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:39:33,221 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:39:33,221 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 37] total 67 [2018-04-11 20:39:33,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-04-11 20:39:33,221 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-04-11 20:39:33,221 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=4290, Unknown=0, NotChecked=0, Total=4422 [2018-04-11 20:39:33,222 INFO L87 Difference]: Start difference. First operand 216 states and 258 transitions. Second operand 67 states. [2018-04-11 20:39:38,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:39:38,321 INFO L93 Difference]: Finished difference Result 466 states and 545 transitions. [2018-04-11 20:39:38,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-11 20:39:38,321 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 206 [2018-04-11 20:39:38,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:39:38,322 INFO L225 Difference]: With dead ends: 466 [2018-04-11 20:39:38,322 INFO L226 Difference]: Without dead ends: 221 [2018-04-11 20:39:38,323 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1006 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=399, Invalid=12033, Unknown=0, NotChecked=0, Total=12432 [2018-04-11 20:39:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-04-11 20:39:38,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 220. [2018-04-11 20:39:38,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-04-11 20:39:38,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 262 transitions. [2018-04-11 20:39:38,329 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 262 transitions. Word has length 206 [2018-04-11 20:39:38,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:39:38,329 INFO L459 AbstractCegarLoop]: Abstraction has 220 states and 262 transitions. [2018-04-11 20:39:38,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-04-11 20:39:38,329 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 262 transitions. [2018-04-11 20:39:38,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-04-11 20:39:38,330 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:39:38,331 INFO L355 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:38,331 INFO L408 AbstractCegarLoop]: === Iteration 45 === [__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 20:39:38,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1126196744, now seen corresponding path program 13 times [2018-04-11 20:39:38,331 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:39:38,331 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:39:38,332 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:39:38,332 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:39:38,332 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:39:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:39:38,358 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:39:39,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 52 proven. 1053 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:39:39,044 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:39:39,044 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 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:39:39,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:39:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:39:39,136 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:39:40,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 338 proven. 767 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:39:40,301 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:39:40,301 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 35] total 68 [2018-04-11 20:39:40,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-04-11 20:39:40,302 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-04-11 20:39:40,302 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=4331, Unknown=0, NotChecked=0, Total=4556 [2018-04-11 20:39:40,302 INFO L87 Difference]: Start difference. First operand 220 states and 262 transitions. Second operand 68 states. [2018-04-11 20:39:45,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:39:45,457 INFO L93 Difference]: Finished difference Result 592 states and 678 transitions. [2018-04-11 20:39:45,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-04-11 20:39:45,457 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 210 [2018-04-11 20:39:45,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:39:45,458 INFO L225 Difference]: With dead ends: 592 [2018-04-11 20:39:45,458 INFO L226 Difference]: Without dead ends: 328 [2018-04-11 20:39:45,459 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2972 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=734, Invalid=16558, Unknown=0, NotChecked=0, Total=17292 [2018-04-11 20:39:45,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2018-04-11 20:39:45,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 233. [2018-04-11 20:39:45,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2018-04-11 20:39:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 278 transitions. [2018-04-11 20:39:45,462 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 278 transitions. Word has length 210 [2018-04-11 20:39:45,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:39:45,463 INFO L459 AbstractCegarLoop]: Abstraction has 233 states and 278 transitions. [2018-04-11 20:39:45,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-04-11 20:39:45,463 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 278 transitions. [2018-04-11 20:39:45,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-04-11 20:39:45,464 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:39:45,464 INFO L355 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:45,464 INFO L408 AbstractCegarLoop]: === Iteration 46 === [__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 20:39:45,464 INFO L82 PathProgramCache]: Analyzing trace with hash 310683965, now seen corresponding path program 14 times [2018-04-11 20:39:45,464 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:39:45,464 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:39:45,464 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:39:45,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:39:45,465 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:39:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:39:45,481 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:39:46,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 392 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:39:46,398 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:39:46,398 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 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:39:46,403 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 20:39:46,475 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 20:39:46,475 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:39:46,481 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:39:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 392 proven. 889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:39:46,635 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:39:46,635 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 39] total 44 [2018-04-11 20:39:46,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-04-11 20:39:46,636 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-04-11 20:39:46,636 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1781, Unknown=0, NotChecked=0, Total=1980 [2018-04-11 20:39:46,636 INFO L87 Difference]: Start difference. First operand 233 states and 278 transitions. Second operand 45 states. [2018-04-11 20:39:48,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:39:48,441 INFO L93 Difference]: Finished difference Result 346 states and 395 transitions. [2018-04-11 20:39:48,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-11 20:39:48,441 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 223 [2018-04-11 20:39:48,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:39:48,442 INFO L225 Difference]: With dead ends: 346 [2018-04-11 20:39:48,442 INFO L226 Difference]: Without dead ends: 346 [2018-04-11 20:39:48,442 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=307, Invalid=3983, Unknown=0, NotChecked=0, Total=4290 [2018-04-11 20:39:48,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2018-04-11 20:39:48,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 242. [2018-04-11 20:39:48,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-04-11 20:39:48,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 290 transitions. [2018-04-11 20:39:48,446 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 290 transitions. Word has length 223 [2018-04-11 20:39:48,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:39:48,446 INFO L459 AbstractCegarLoop]: Abstraction has 242 states and 290 transitions. [2018-04-11 20:39:48,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-04-11 20:39:48,446 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 290 transitions. [2018-04-11 20:39:48,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-04-11 20:39:48,447 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:39:48,447 INFO L355 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:48,448 INFO L408 AbstractCegarLoop]: === Iteration 47 === [__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 20:39:48,448 INFO L82 PathProgramCache]: Analyzing trace with hash 525622933, now seen corresponding path program 15 times [2018-04-11 20:39:48,448 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:39:48,448 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:39:48,448 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:39:48,449 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:39:48,449 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:39:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:39:48,476 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:39:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 182 proven. 1225 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 20:39:49,258 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:39:49,258 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 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:39:49,263 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 20:40:11,595 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2018-04-11 20:40:11,595 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:40:11,685 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:40:11,831 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 20:40:11,832 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 11 treesize of output 10 [2018-04-11 20:40:11,832 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:40:11,833 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:40:11,836 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 20:40:11,836 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:17 [2018-04-11 20:40:14,755 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 18 [2018-04-11 20:40:18,843 WARN L151 SmtUtils]: Spent 4029ms on a formula simplification. DAG size of input: 27 DAG size of output 22 [2018-04-11 20:40:20,908 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 22 [2018-04-11 20:40:22,988 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 22 [2018-04-11 20:40:25,477 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 20:40:25,479 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 22 treesize of output 15 [2018-04-11 20:40:25,479 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:40:25,485 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 15 treesize of output 8 [2018-04-11 20:40:25,485 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:40:25,490 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 20:40:25,490 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:40:25,492 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:40:25,493 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 20:40:25,493 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:26, output treesize:3 [2018-04-11 20:40:25,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 88 proven. 1323 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:40:25,662 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:40:25,662 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 64] total 98 [2018-04-11 20:40:25,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 98 states [2018-04-11 20:40:25,663 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2018-04-11 20:40:25,663 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=9251, Unknown=0, NotChecked=0, Total=9506 [2018-04-11 20:40:25,663 INFO L87 Difference]: Start difference. First operand 242 states and 290 transitions. Second operand 98 states. [2018-04-11 20:40:30,004 WARN L148 SmtUtils]: Spent 2006ms on a formula simplification that was a NOOP. DAG size: 26 [2018-04-11 20:40:32,124 WARN L148 SmtUtils]: Spent 2008ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-11 20:40:34,655 WARN L148 SmtUtils]: Spent 2007ms on a formula simplification that was a NOOP. DAG size: 25 [2018-04-11 20:40:40,007 WARN L148 SmtUtils]: Spent 2011ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-11 20:40:42,198 WARN L148 SmtUtils]: Spent 2010ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-11 20:40:51,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:40:51,340 INFO L93 Difference]: Finished difference Result 774 states and 907 transitions. [2018-04-11 20:40:51,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-04-11 20:40:51,340 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 232 [2018-04-11 20:40:51,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:40:51,341 INFO L225 Difference]: With dead ends: 774 [2018-04-11 20:40:51,341 INFO L226 Difference]: Without dead ends: 249 [2018-04-11 20:40:51,343 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4817 ImplicationChecksByTransitivity, 30.0s TimeCoverageRelationStatistics Valid=914, Invalid=34242, Unknown=0, NotChecked=0, Total=35156 [2018-04-11 20:40:51,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2018-04-11 20:40:51,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 246. [2018-04-11 20:40:51,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-04-11 20:40:51,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 294 transitions. [2018-04-11 20:40:51,345 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 294 transitions. Word has length 232 [2018-04-11 20:40:51,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:40:51,346 INFO L459 AbstractCegarLoop]: Abstraction has 246 states and 294 transitions. [2018-04-11 20:40:51,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 98 states. [2018-04-11 20:40:51,346 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 294 transitions. [2018-04-11 20:40:51,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2018-04-11 20:40:51,347 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:40:51,347 INFO L355 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:40:51,347 INFO L408 AbstractCegarLoop]: === Iteration 48 === [__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 20:40:51,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1932968562, now seen corresponding path program 16 times [2018-04-11 20:40:51,347 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:40:51,347 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:40:51,347 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:40:51,348 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:40:51,348 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:40:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:40:51,365 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:40:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 450 proven. 1020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:40:52,310 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:40:52,310 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 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:40:52,315 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-04-11 20:40:52,398 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-04-11 20:40:52,398 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:40:52,403 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:40:52,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 450 proven. 1020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:40:52,966 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:40:52,966 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 39] total 61 [2018-04-11 20:40:52,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-04-11 20:40:52,967 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-04-11 20:40:52,967 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=486, Invalid=3296, Unknown=0, NotChecked=0, Total=3782 [2018-04-11 20:40:52,967 INFO L87 Difference]: Start difference. First operand 246 states and 294 transitions. Second operand 62 states. [2018-04-11 20:40:55,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:40:55,236 INFO L93 Difference]: Finished difference Result 366 states and 418 transitions. [2018-04-11 20:40:55,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-04-11 20:40:55,236 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 236 [2018-04-11 20:40:55,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:40:55,237 INFO L225 Difference]: With dead ends: 366 [2018-04-11 20:40:55,237 INFO L226 Difference]: Without dead ends: 366 [2018-04-11 20:40:55,237 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 217 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2708 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=975, Invalid=8337, Unknown=0, NotChecked=0, Total=9312 [2018-04-11 20:40:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2018-04-11 20:40:55,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 255. [2018-04-11 20:40:55,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2018-04-11 20:40:55,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 306 transitions. [2018-04-11 20:40:55,240 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 306 transitions. Word has length 236 [2018-04-11 20:40:55,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:40:55,240 INFO L459 AbstractCegarLoop]: Abstraction has 255 states and 306 transitions. [2018-04-11 20:40:55,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-04-11 20:40:55,240 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 306 transitions. [2018-04-11 20:40:55,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2018-04-11 20:40:55,241 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:40:55,241 INFO L355 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:40:55,241 INFO L408 AbstractCegarLoop]: === Iteration 49 === [__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 20:40:55,241 INFO L82 PathProgramCache]: Analyzing trace with hash 639815936, now seen corresponding path program 17 times [2018-04-11 20:40:55,242 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:40:55,242 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:40:55,242 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:40:55,242 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:40:55,242 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:40:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:40:55,262 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:40:55,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1609 backedges. 195 proven. 1410 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 20:40:55,951 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:40:55,951 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 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:40:55,956 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-04-11 20:42:10,993 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2018-04-11 20:42:10,993 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:42:11,336 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:42:13,237 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 20:42:13,239 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 22 treesize of output 15 [2018-04-11 20:42:13,239 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:42:13,247 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 15 treesize of output 8 [2018-04-11 20:42:13,247 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:42:13,254 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 0 case distinctions, treesize of input 18 treesize of output 3 [2018-04-11 20:42:13,254 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:42:13,257 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:42:13,257 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:42:13,258 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:26, output treesize:3 [2018-04-11 20:42:13,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1609 backedges. 94 proven. 1515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:42:13,414 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:42:13,414 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 47] total 83 [2018-04-11 20:42:13,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-04-11 20:42:13,415 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-04-11 20:42:13,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=6641, Unknown=0, NotChecked=0, Total=6806 [2018-04-11 20:42:13,415 INFO L87 Difference]: Start difference. First operand 255 states and 306 transitions. Second operand 83 states. [2018-04-11 20:42:21,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:42:21,130 INFO L93 Difference]: Finished difference Result 562 states and 659 transitions. [2018-04-11 20:42:21,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-04-11 20:42:21,130 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 245 [2018-04-11 20:42:21,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:42:21,131 INFO L225 Difference]: With dead ends: 562 [2018-04-11 20:42:21,131 INFO L226 Difference]: Without dead ends: 260 [2018-04-11 20:42:21,132 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1634 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=500, Invalid=18682, Unknown=0, NotChecked=0, Total=19182 [2018-04-11 20:42:21,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-04-11 20:42:21,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 259. [2018-04-11 20:42:21,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2018-04-11 20:42:21,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 310 transitions. [2018-04-11 20:42:21,135 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 310 transitions. Word has length 245 [2018-04-11 20:42:21,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:42:21,135 INFO L459 AbstractCegarLoop]: Abstraction has 259 states and 310 transitions. [2018-04-11 20:42:21,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-04-11 20:42:21,136 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 310 transitions. [2018-04-11 20:42:21,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-04-11 20:42:21,137 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:42:21,137 INFO L355 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:42:21,137 INFO L408 AbstractCegarLoop]: === Iteration 50 === [__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 20:42:21,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1928354883, now seen corresponding path program 18 times [2018-04-11 20:42:21,137 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:42:21,137 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:42:21,138 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:42:21,138 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:42:21,138 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:42:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:42:21,165 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:42:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1672 backedges. 512 proven. 1160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:42:22,126 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:42:22,126 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 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:42:22,132 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-04-11 20:42:23,329 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2018-04-11 20:42:23,329 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:42:23,338 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:42:23,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1672 backedges. 512 proven. 1160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:42:23,520 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:42:23,520 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 40] total 46 [2018-04-11 20:42:23,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-04-11 20:42:23,521 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-04-11 20:42:23,521 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=1810, Unknown=0, NotChecked=0, Total=2162 [2018-04-11 20:42:23,521 INFO L87 Difference]: Start difference. First operand 259 states and 310 transitions. Second operand 47 states. [2018-04-11 20:42:25,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:42:25,110 INFO L93 Difference]: Finished difference Result 414 states and 469 transitions. [2018-04-11 20:42:25,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-04-11 20:42:25,110 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 249 [2018-04-11 20:42:25,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:42:25,111 INFO L225 Difference]: With dead ends: 414 [2018-04-11 20:42:25,111 INFO L226 Difference]: Without dead ends: 414 [2018-04-11 20:42:25,112 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 247 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2592 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1744, Invalid=7762, Unknown=0, NotChecked=0, Total=9506 [2018-04-11 20:42:25,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2018-04-11 20:42:25,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 268. [2018-04-11 20:42:25,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-04-11 20:42:25,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 322 transitions. [2018-04-11 20:42:25,116 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 322 transitions. Word has length 249 [2018-04-11 20:42:25,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:42:25,116 INFO L459 AbstractCegarLoop]: Abstraction has 268 states and 322 transitions. [2018-04-11 20:42:25,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-04-11 20:42:25,117 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 322 transitions. [2018-04-11 20:42:25,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-04-11 20:42:25,118 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:42:25,118 INFO L355 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:42:25,118 INFO L408 AbstractCegarLoop]: === Iteration 51 === [__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 20:42:25,118 INFO L82 PathProgramCache]: Analyzing trace with hash 454734415, now seen corresponding path program 19 times [2018-04-11 20:42:25,118 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:42:25,118 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:42:25,119 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:42:25,119 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:42:25,119 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:42:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:42:25,137 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:42:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 208 proven. 1608 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 20:42:25,886 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:42:25,886 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 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:42:25,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:42:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:42:25,983 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:42:25,987 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 20:42:25,988 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 20:42:25,989 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:42:25,990 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:42:25,992 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 20:42:25,992 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:14, output treesize:10 [2018-04-11 20:42:29,526 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 19 [2018-04-11 20:42:33,604 WARN L151 SmtUtils]: Spent 4008ms on a formula simplification. DAG size of input: 25 DAG size of output 17 [2018-04-11 20:42:35,679 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:42:37,769 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:42:39,851 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:42:41,947 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:42:44,024 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:42:46,101 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:42:48,228 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:42:50,346 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:42:52,445 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:42:54,549 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:42:56,640 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:42:58,735 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:43:00,839 WARN L148 SmtUtils]: Spent 2006ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:43:02,935 WARN L148 SmtUtils]: Spent 2005ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:43:05,036 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:43:07,151 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:43:09,253 WARN L148 SmtUtils]: Spent 2005ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-11 20:43:11,382 WARN L148 SmtUtils]: Spent 2003ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-11 20:43:13,463 WARN L148 SmtUtils]: Spent 2005ms on a formula simplification that was a NOOP. DAG size: 21 [2018-04-11 20:43:15,549 WARN L148 SmtUtils]: Spent 2004ms on a formula simplification that was a NOOP. DAG size: 21 [2018-04-11 20:43:15,841 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 36 treesize of output 34 [2018-04-11 20:43:15,844 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 0 case distinctions, treesize of input 26 treesize of output 3 [2018-04-11 20:43:15,845 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:43:15,848 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:43:15,849 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:43:15,849 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:36, output treesize:3 [2018-04-11 20:43:16,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 100 proven. 1720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:43:16,109 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:43:16,109 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 49] total 87 [2018-04-11 20:43:16,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 87 states [2018-04-11 20:43:16,110 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2018-04-11 20:43:16,110 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=7264, Unknown=0, NotChecked=0, Total=7482 [2018-04-11 20:43:16,110 INFO L87 Difference]: Start difference. First operand 268 states and 322 transitions. Second operand 87 states. [2018-04-11 20:43:22,036 WARN L148 SmtUtils]: Spent 2008ms on a formula simplification that was a NOOP. DAG size: 27 [2018-04-11 20:43:24,260 WARN L148 SmtUtils]: Spent 2008ms on a formula simplification that was a NOOP. DAG size: 30 [2018-04-11 20:43:26,516 WARN L148 SmtUtils]: Spent 2051ms on a formula simplification that was a NOOP. DAG size: 28 [2018-04-11 20:43:28,638 WARN L148 SmtUtils]: Spent 2021ms on a formula simplification that was a NOOP. DAG size: 28 [2018-04-11 20:43:30,849 WARN L148 SmtUtils]: Spent 2005ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-11 20:43:35,021 WARN L148 SmtUtils]: Spent 4010ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-11 20:43:39,383 WARN L148 SmtUtils]: Spent 4016ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:43:43,928 WARN L148 SmtUtils]: Spent 4010ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:43:48,435 WARN L148 SmtUtils]: Spent 4011ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:43:52,932 WARN L148 SmtUtils]: Spent 4012ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:43:57,362 WARN L148 SmtUtils]: Spent 4010ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:44:01,901 WARN L148 SmtUtils]: Spent 4020ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:44:06,543 WARN L148 SmtUtils]: Spent 4015ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:44:11,099 WARN L148 SmtUtils]: Spent 4016ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:44:15,580 WARN L148 SmtUtils]: Spent 4016ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:44:20,157 WARN L148 SmtUtils]: Spent 4013ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:44:24,677 WARN L148 SmtUtils]: Spent 4011ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:44:29,207 WARN L148 SmtUtils]: Spent 4011ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:44:33,734 WARN L148 SmtUtils]: Spent 4011ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:44:38,302 WARN L148 SmtUtils]: Spent 4010ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:44:42,861 WARN L148 SmtUtils]: Spent 4017ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:44:47,443 WARN L148 SmtUtils]: Spent 4010ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:44:51,967 WARN L148 SmtUtils]: Spent 4012ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:44:56,578 WARN L148 SmtUtils]: Spent 4010ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:45:01,118 WARN L148 SmtUtils]: Spent 4012ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:45:05,755 WARN L148 SmtUtils]: Spent 4019ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:45:10,317 WARN L148 SmtUtils]: Spent 4014ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:45:14,867 WARN L148 SmtUtils]: Spent 4013ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:45:19,393 WARN L148 SmtUtils]: Spent 4009ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:45:23,926 WARN L148 SmtUtils]: Spent 4010ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:45:28,407 WARN L148 SmtUtils]: Spent 4019ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:45:32,975 WARN L148 SmtUtils]: Spent 4015ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:45:37,477 WARN L148 SmtUtils]: Spent 4010ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:45:42,056 WARN L148 SmtUtils]: Spent 4015ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:45:46,578 WARN L148 SmtUtils]: Spent 4010ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-11 20:45:51,145 WARN L148 SmtUtils]: Spent 4010ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-11 20:45:55,675 WARN L148 SmtUtils]: Spent 4017ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-11 20:46:00,329 WARN L148 SmtUtils]: Spent 4016ms on a formula simplification that was a NOOP. DAG size: 31 [2018-04-11 20:46:04,603 WARN L148 SmtUtils]: Spent 4010ms on a formula simplification that was a NOOP. DAG size: 28 [2018-04-11 20:46:04,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:04,671 INFO L93 Difference]: Finished difference Result 594 states and 697 transitions. [2018-04-11 20:46:04,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-04-11 20:46:04,671 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 258 [2018-04-11 20:46:04,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:04,672 INFO L225 Difference]: With dead ends: 594 [2018-04-11 20:46:04,672 INFO L226 Difference]: Without dead ends: 273 [2018-04-11 20:46:04,673 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1834 ImplicationChecksByTransitivity, 202.5s TimeCoverageRelationStatistics Valid=625, Invalid=20255, Unknown=0, NotChecked=0, Total=20880 [2018-04-11 20:46:04,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2018-04-11 20:46:04,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 272. [2018-04-11 20:46:04,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2018-04-11 20:46:04,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 326 transitions. [2018-04-11 20:46:04,675 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 326 transitions. Word has length 258 [2018-04-11 20:46:04,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:04,675 INFO L459 AbstractCegarLoop]: Abstraction has 272 states and 326 transitions. [2018-04-11 20:46:04,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 87 states. [2018-04-11 20:46:04,675 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 326 transitions. [2018-04-11 20:46:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-04-11 20:46:04,676 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:04,676 INFO L355 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:46:04,676 INFO L408 AbstractCegarLoop]: === Iteration 52 === [__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 20:46:04,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1290980332, now seen corresponding path program 20 times [2018-04-11 20:46:04,676 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:46:04,676 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:46:04,676 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:46:04,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 20:46:04,677 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:46:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:04,694 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:46:05,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1887 backedges. 578 proven. 1309 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:05,734 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:46:05,734 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 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:46:05,739 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 20:46:05,820 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 20:46:05,821 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 20:46:05,827 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:05,829 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 20:46:05,829 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:05,831 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:05,831 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 20:46:06,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1887 backedges. 578 proven. 1309 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:06,536 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:46:06,537 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 46] total 70 [2018-04-11 20:46:06,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-04-11 20:46:06,537 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-04-11 20:46:06,537 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=605, Invalid=4365, Unknown=0, NotChecked=0, Total=4970 [2018-04-11 20:46:06,537 INFO L87 Difference]: Start difference. First operand 272 states and 326 transitions. Second operand 71 states. [2018-04-11 20:46:10,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:10,137 INFO L93 Difference]: Finished difference Result 406 states and 464 transitions. [2018-04-11 20:46:10,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-04-11 20:46:10,137 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 262 [2018-04-11 20:46:10,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:10,138 INFO L225 Difference]: With dead ends: 406 [2018-04-11 20:46:10,138 INFO L226 Difference]: Without dead ends: 406 [2018-04-11 20:46:10,139 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 238 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3752 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1207, Invalid=11225, Unknown=0, NotChecked=0, Total=12432 [2018-04-11 20:46:10,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2018-04-11 20:46:10,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 281. [2018-04-11 20:46:10,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2018-04-11 20:46:10,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 338 transitions. [2018-04-11 20:46:10,141 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 338 transitions. Word has length 262 [2018-04-11 20:46:10,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:10,141 INFO L459 AbstractCegarLoop]: Abstraction has 281 states and 338 transitions. [2018-04-11 20:46:10,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-04-11 20:46:10,141 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 338 transitions. [2018-04-11 20:46:10,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-04-11 20:46:10,142 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:10,142 INFO L355 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:46:10,142 INFO L408 AbstractCegarLoop]: === Iteration 53 === [__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 20:46:10,142 INFO L82 PathProgramCache]: Analyzing trace with hash 2145439942, now seen corresponding path program 21 times [2018-04-11 20:46:10,142 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-04-11 20:46:10,143 INFO L68 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-04-11 20:46:10,143 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:46:10,143 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 20:46:10,143 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 20:46:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:10,163 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 20:46:10,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2044 backedges. 221 proven. 1819 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 20:46:10,983 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 20:46:10,983 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 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-04-11 20:46:10,989 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown