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_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 15:23:10,393 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 15:23:10,394 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 15:23:10,407 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 15:23:10,407 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 15:23:10,408 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 15:23:10,409 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 15:23:10,411 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 15:23:10,412 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 15:23:10,413 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 15:23:10,414 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 15:23:10,414 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 15:23:10,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 15:23:10,415 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 15:23:10,416 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 15:23:10,418 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 15:23:10,419 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 15:23:10,421 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 15:23:10,421 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 15:23:10,422 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 15:23:10,424 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 15:23:10,428 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 15:23:10,429 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 15:23:10,429 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-11 15:23:10,449 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 15:23:10,450 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 15:23:10,451 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 15:23:10,451 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 15:23:10,451 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 15:23:10,451 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 15:23:10,451 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 15:23:10,451 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 15:23:10,452 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 15:23:10,452 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 15:23:10,452 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 15:23:10,452 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 15:23:10,452 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 15:23:10,452 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 15:23:10,452 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 15:23:10,453 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 15:23:10,453 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 15:23:10,453 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 15:23:10,453 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 15:23:10,453 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 15:23:10,453 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 15:23:10,454 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 15:23:10,454 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 15:23:10,454 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 15:23:10,486 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 15:23:10,496 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 15:23:10,499 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 15:23:10,501 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 15:23:10,501 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 15:23:10,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,780 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6e82837bb [2018-04-11 15:23:10,918 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 15:23:10,919 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 15:23:10,919 INFO L168 CDTParser]: Scanning openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,927 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 15:23:10,927 INFO L215 ultiparseSymbolTable]: [2018-04-11 15:23:10,927 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 15:23:10,927 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,927 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,928 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,928 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn ('cstrspn') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,928 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 15:23:10,928 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,928 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,928 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,928 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,928 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,928 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,929 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,929 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,929 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,929 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,929 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,929 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,929 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,929 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,929 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,929 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,929 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,929 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,930 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,930 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,930 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,930 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,930 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,930 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,930 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,930 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,930 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,930 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,930 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,931 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,932 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,933 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,934 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,934 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,934 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,934 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,934 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,934 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,934 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,934 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,934 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,934 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,934 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,935 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,935 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,935 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,935 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,935 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,935 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,935 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,935 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,935 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,935 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,935 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,936 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,937 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,937 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,937 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,937 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,937 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,937 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,937 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,937 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,937 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:10,950 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG6e82837bb [2018-04-11 15:23:10,952 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 15:23:10,953 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 15:23:10,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 15:23:10,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 15:23:10,959 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 15:23:10,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:23:10" (1/1) ... [2018-04-11 15:23:10,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b43f8bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:23:10, skipping insertion in model container [2018-04-11 15:23:10,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:23:10" (1/1) ... [2018-04-11 15:23:10,975 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:23:10,996 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:23:11,117 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:23:11,148 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:23:11,153 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 15:23:11,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:23:11 WrapperNode [2018-04-11 15:23:11,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 15:23:11,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 15:23:11,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 15:23:11,191 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 15:23:11,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:23:11" (1/1) ... [2018-04-11 15:23:11,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:23:11" (1/1) ... [2018-04-11 15:23:11,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:23:11" (1/1) ... [2018-04-11 15:23:11,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:23:11" (1/1) ... [2018-04-11 15:23:11,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:23:11" (1/1) ... [2018-04-11 15:23:11,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:23:11" (1/1) ... [2018-04-11 15:23:11,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:23:11" (1/1) ... [2018-04-11 15:23:11,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 15:23:11,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 15:23:11,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 15:23:11,233 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 15:23:11,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:23:11" (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 15:23:11,319 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 15:23:11,320 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 15:23:11,320 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 15:23:11,320 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 15:23:11,320 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-04-11 15:23:11,320 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 15:23:11,320 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 15:23:11,320 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 15:23:11,320 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 15:23:11,320 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 15:23:11,320 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 15:23:11,321 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 15:23:11,321 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 15:23:11,321 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 15:23:11,321 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 15:23:11,321 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 15:23:11,321 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 15:23:11,321 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 15:23:11,321 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 15:23:11,321 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 15:23:11,321 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 15:23:11,322 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 15:23:11,322 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 15:23:11,322 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 15:23:11,322 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 15:23:11,322 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 15:23:11,322 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 15:23:11,322 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 15:23:11,322 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 15:23:11,322 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 15:23:11,322 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 15:23:11,323 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 15:23:11,323 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 15:23:11,323 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 15:23:11,323 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 15:23:11,323 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 15:23:11,323 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 15:23:11,323 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 15:23:11,323 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 15:23:11,323 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 15:23:11,324 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 15:23:11,325 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 15:23:11,325 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 15:23:11,325 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 15:23:11,325 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 15:23:11,325 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 15:23:11,325 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 15:23:11,325 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 15:23:11,325 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 15:23:11,325 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 15:23:11,325 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 15:23:11,325 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 15:23:11,326 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 15:23:11,327 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 15:23:11,328 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 15:23:11,329 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 15:23:11,329 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 15:23:11,329 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 15:23:11,329 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 15:23:11,329 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-04-11 15:23:11,329 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 15:23:11,329 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 15:23:11,329 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 15:23:11,329 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 15:23:11,329 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 15:23:11,329 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 15:23:11,330 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 15:23:11,330 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 15:23:11,601 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 15:23:11,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:23:11 BoogieIcfgContainer [2018-04-11 15:23:11,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 15:23:11,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 15:23:11,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 15:23:11,604 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 15:23:11,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 03:23:10" (1/3) ... [2018-04-11 15:23:11,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1c9602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:23:11, skipping insertion in model container [2018-04-11 15:23:11,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:23:11" (2/3) ... [2018-04-11 15:23:11,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1c9602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:23:11, skipping insertion in model container [2018-04-11 15:23:11,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:23:11" (3/3) ... [2018-04-11 15:23:11,606 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:23:11,614 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 15:23:11,620 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-11 15:23:11,648 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 15:23:11,649 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 15:23:11,649 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 15:23:11,649 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 15:23:11,649 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 15:23:11,649 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 15:23:11,649 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 15:23:11,649 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 15:23:11,649 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 15:23:11,650 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 15:23:11,657 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-04-11 15:23:11,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 15:23:11,662 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:11,663 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:23:11,663 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:11,666 INFO L82 PathProgramCache]: Analyzing trace with hash -376792556, now seen corresponding path program 1 times [2018-04-11 15:23:11,667 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:11,667 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:11,694 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:11,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:11,695 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:11,731 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:11,747 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:23:11,747 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:23:11,747 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:23:11,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:11,781 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:23:11,816 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 15:23:11,817 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:11,821 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:11,821 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 15:23:11,837 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:11,837 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:11,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 17 treesize of output 21 [2018-04-11 15:23:11,839 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:11,845 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:23:11,845 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-04-11 15:23:11,857 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 15:23:11,858 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:23:11,858 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 15:23:11,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 15:23:11,867 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 15:23:11,867 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:23:11,868 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2018-04-11 15:23:11,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:11,949 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-04-11 15:23:11,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 15:23:11,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-04-11 15:23:11,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:11,958 INFO L225 Difference]: With dead ends: 44 [2018-04-11 15:23:11,958 INFO L226 Difference]: Without dead ends: 41 [2018-04-11 15:23:11,960 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-04-11 15:23:11,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-11 15:23:11,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-04-11 15:23:11,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-11 15:23:11,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-04-11 15:23:11,989 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 13 [2018-04-11 15:23:11,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:11,990 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-04-11 15:23:11,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 15:23:11,990 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-04-11 15:23:11,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 15:23:11,990 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:11,991 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:23:11,991 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:11,991 INFO L82 PathProgramCache]: Analyzing trace with hash -376792555, now seen corresponding path program 1 times [2018-04-11 15:23:11,991 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:11,991 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:11,992 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:11,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:11,992 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:12,002 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:12,008 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:23:12,008 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:23:12,008 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:23:12,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:12,030 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:23:12,038 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 15:23:12,038 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:12,048 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 15:23:12,049 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:12,054 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:12,054 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-11 15:23:12,074 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:12,074 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:12,075 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 15:23:12,076 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:12,085 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 15:23:12,085 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:12,091 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:12,091 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-04-11 15:23:12,100 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 15:23:12,101 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:23:12,101 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 15:23:12,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 15:23:12,102 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 15:23:12,102 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:23:12,102 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2018-04-11 15:23:12,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:12,173 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-04-11 15:23:12,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:23:12,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-11 15:23:12,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:12,174 INFO L225 Difference]: With dead ends: 40 [2018-04-11 15:23:12,174 INFO L226 Difference]: Without dead ends: 40 [2018-04-11 15:23:12,175 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 15:23:12,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-11 15:23:12,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-11 15:23:12,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-11 15:23:12,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-04-11 15:23:12,178 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 13 [2018-04-11 15:23:12,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:12,179 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-04-11 15:23:12,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 15:23:12,179 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-04-11 15:23:12,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 15:23:12,179 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:12,179 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:23:12,179 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:12,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1204332646, now seen corresponding path program 1 times [2018-04-11 15:23:12,179 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:12,180 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:12,180 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:12,180 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:12,190 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:12,214 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 15:23:12,214 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:23:12,214 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 15:23:12,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 15:23:12,215 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 15:23:12,215 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 15:23:12,215 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 4 states. [2018-04-11 15:23:12,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:12,255 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-04-11 15:23:12,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 15:23:12,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-11 15:23:12,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:12,256 INFO L225 Difference]: With dead ends: 39 [2018-04-11 15:23:12,256 INFO L226 Difference]: Without dead ends: 39 [2018-04-11 15:23:12,257 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 15:23:12,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-04-11 15:23:12,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-04-11 15:23:12,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-11 15:23:12,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-04-11 15:23:12,259 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 14 [2018-04-11 15:23:12,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:12,259 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-04-11 15:23:12,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 15:23:12,259 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-04-11 15:23:12,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 15:23:12,260 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:12,260 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:23:12,260 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:12,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1204332647, now seen corresponding path program 1 times [2018-04-11 15:23:12,260 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:12,260 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:12,261 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:12,261 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:12,271 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:12,310 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 15:23:12,310 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:23:12,310 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 15:23:12,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 15:23:12,310 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 15:23:12,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:23:12,311 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 5 states. [2018-04-11 15:23:12,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:12,338 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2018-04-11 15:23:12,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:23:12,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 15:23:12,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:12,352 INFO L225 Difference]: With dead ends: 38 [2018-04-11 15:23:12,352 INFO L226 Difference]: Without dead ends: 38 [2018-04-11 15:23:12,352 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 15:23:12,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-04-11 15:23:12,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-04-11 15:23:12,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-04-11 15:23:12,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-04-11 15:23:12,357 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 14 [2018-04-11 15:23:12,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:12,357 INFO L459 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-04-11 15:23:12,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 15:23:12,357 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-04-11 15:23:12,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 15:23:12,358 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:12,358 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:23:12,358 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:12,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1759820867, now seen corresponding path program 1 times [2018-04-11 15:23:12,359 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:12,359 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:12,360 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:12,360 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:12,374 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:12,422 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 15:23:12,422 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:23:12,422 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 15:23:12,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 15:23:12,423 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 15:23:12,423 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:23:12,423 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 6 states. [2018-04-11 15:23:12,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:12,491 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-04-11 15:23:12,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:23:12,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-04-11 15:23:12,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:12,491 INFO L225 Difference]: With dead ends: 37 [2018-04-11 15:23:12,491 INFO L226 Difference]: Without dead ends: 37 [2018-04-11 15:23:12,492 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 15:23:12,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-04-11 15:23:12,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-04-11 15:23:12,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-04-11 15:23:12,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-04-11 15:23:12,495 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 18 [2018-04-11 15:23:12,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:12,495 INFO L459 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-04-11 15:23:12,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 15:23:12,495 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-04-11 15:23:12,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 15:23:12,496 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:12,496 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:23:12,496 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:12,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1759820868, now seen corresponding path program 1 times [2018-04-11 15:23:12,496 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:12,496 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:12,497 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:12,497 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:12,508 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:12,595 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 15:23:12,596 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:23:12,596 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 15:23:12,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 15:23:12,596 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 15:23:12,596 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-11 15:23:12,597 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 9 states. [2018-04-11 15:23:12,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:12,689 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-04-11 15:23:12,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 15:23:12,689 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-04-11 15:23:12,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:12,690 INFO L225 Difference]: With dead ends: 40 [2018-04-11 15:23:12,690 INFO L226 Difference]: Without dead ends: 40 [2018-04-11 15:23:12,690 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-04-11 15:23:12,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-11 15:23:12,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-04-11 15:23:12,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-11 15:23:12,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-04-11 15:23:12,692 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 18 [2018-04-11 15:23:12,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:12,692 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-04-11 15:23:12,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 15:23:12,692 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-04-11 15:23:12,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-11 15:23:12,693 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:12,693 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] [2018-04-11 15:23:12,693 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:12,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1842322422, now seen corresponding path program 1 times [2018-04-11 15:23:12,693 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:12,693 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:12,693 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:12,694 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:12,704 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:12,780 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 15:23:12,780 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:23:12,780 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-11 15:23:12,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 15:23:12,781 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 15:23:12,781 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-04-11 15:23:12,781 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 10 states. [2018-04-11 15:23:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:12,871 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-04-11 15:23:12,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 15:23:12,872 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-04-11 15:23:12,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:12,872 INFO L225 Difference]: With dead ends: 44 [2018-04-11 15:23:12,872 INFO L226 Difference]: Without dead ends: 44 [2018-04-11 15:23:12,872 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-04-11 15:23:12,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-04-11 15:23:12,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2018-04-11 15:23:12,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-11 15:23:12,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-04-11 15:23:12,874 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 21 [2018-04-11 15:23:12,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:12,874 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-04-11 15:23:12,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 15:23:12,874 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-04-11 15:23:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-11 15:23:12,875 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:12,875 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] [2018-04-11 15:23:12,875 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:12,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1842322423, now seen corresponding path program 1 times [2018-04-11 15:23:12,875 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:12,875 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:12,876 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:12,876 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:12,881 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:12,928 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 15:23:12,928 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:23:12,928 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 15:23:12,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 15:23:12,928 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 15:23:12,928 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 15:23:12,928 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 7 states. [2018-04-11 15:23:12,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:12,985 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-04-11 15:23:12,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 15:23:12,986 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-04-11 15:23:12,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:12,986 INFO L225 Difference]: With dead ends: 41 [2018-04-11 15:23:12,986 INFO L226 Difference]: Without dead ends: 41 [2018-04-11 15:23:12,987 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-11 15:23:12,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-11 15:23:12,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-04-11 15:23:12,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-11 15:23:12,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-04-11 15:23:12,989 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 21 [2018-04-11 15:23:12,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:12,989 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-04-11 15:23:12,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 15:23:12,990 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-04-11 15:23:12,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 15:23:12,990 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:12,990 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] [2018-04-11 15:23:12,990 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:12,991 INFO L82 PathProgramCache]: Analyzing trace with hash 14731087, now seen corresponding path program 1 times [2018-04-11 15:23:12,991 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:12,991 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:12,991 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:12,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:12,992 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:13,004 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:13,008 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:23:13,008 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:23:13,008 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:23:13,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:13,057 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:23:13,067 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 15:23:13,067 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:13,072 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:13,072 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-11 15:23:13,089 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:13,090 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:13,091 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 15:23:13,091 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:13,095 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:13,095 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:11 [2018-04-11 15:23:13,113 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 15:23:13,116 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 15:23:13,117 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:13,119 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:13,127 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 15:23:13,127 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-04-11 15:23:13,143 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 15:23:13,144 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 15:23:13,144 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:13,148 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:13,155 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 15:23:13,155 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:40, output treesize:36 [2018-04-11 15:23:13,250 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 28 treesize of output 26 [2018-04-11 15:23:13,254 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 15:23:13,255 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 14 treesize of output 10 [2018-04-11 15:23:13,256 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:13,262 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 8 treesize of output 1 [2018-04-11 15:23:13,262 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:13,263 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:13,271 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 15:23:13,275 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:49, output treesize:3 [2018-04-11 15:23:13,310 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 15:23:13,310 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:23:13,310 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-04-11 15:23:13,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-11 15:23:13,310 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-11 15:23:13,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-04-11 15:23:13,311 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 15 states. [2018-04-11 15:23:13,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:13,649 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2018-04-11 15:23:13,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 15:23:13,650 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 26 [2018-04-11 15:23:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:13,650 INFO L225 Difference]: With dead ends: 71 [2018-04-11 15:23:13,650 INFO L226 Difference]: Without dead ends: 71 [2018-04-11 15:23:13,651 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=585, Unknown=0, NotChecked=0, Total=702 [2018-04-11 15:23:13,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-04-11 15:23:13,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 62. [2018-04-11 15:23:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-04-11 15:23:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2018-04-11 15:23:13,654 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 26 [2018-04-11 15:23:13,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:13,654 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2018-04-11 15:23:13,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-11 15:23:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2018-04-11 15:23:13,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 15:23:13,654 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:13,654 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] [2018-04-11 15:23:13,654 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:13,655 INFO L82 PathProgramCache]: Analyzing trace with hash 14733265, now seen corresponding path program 1 times [2018-04-11 15:23:13,655 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:13,655 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:13,655 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:13,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:13,655 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:13,662 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:13,754 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 15:23:13,754 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:23:13,754 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-11 15:23:13,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 15:23:13,754 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 15:23:13,754 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-04-11 15:23:13,755 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand 12 states. [2018-04-11 15:23:13,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:13,885 INFO L93 Difference]: Finished difference Result 105 states and 110 transitions. [2018-04-11 15:23:13,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 15:23:13,885 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2018-04-11 15:23:13,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:13,888 INFO L225 Difference]: With dead ends: 105 [2018-04-11 15:23:13,888 INFO L226 Difference]: Without dead ends: 105 [2018-04-11 15:23:13,889 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2018-04-11 15:23:13,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-04-11 15:23:13,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 80. [2018-04-11 15:23:13,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-04-11 15:23:13,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2018-04-11 15:23:13,893 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 26 [2018-04-11 15:23:13,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:13,893 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2018-04-11 15:23:13,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 15:23:13,893 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2018-04-11 15:23:13,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 15:23:13,894 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:13,894 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] [2018-04-11 15:23:13,894 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:13,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1674210477, now seen corresponding path program 1 times [2018-04-11 15:23:13,895 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:13,895 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:13,896 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:13,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:13,896 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:13,905 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:14,091 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 15:23:14,092 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:23:14,092 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:23:14,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:14,116 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:23:14,122 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 15:23:14,122 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:14,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:14,124 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:23:14,145 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 16 treesize of output 13 [2018-04-11 15:23:14,147 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 15:23:14,147 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:14,148 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:14,152 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:14,152 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-04-11 15:23:14,295 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 22 treesize of output 18 [2018-04-11 15:23:14,301 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 15:23:14,301 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:23:14,304 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:23:14,311 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:23:14,311 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:54 [2018-04-11 15:23:14,412 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 15:23:14,413 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:23:14,413 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2018-04-11 15:23:14,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-11 15:23:14,413 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-11 15:23:14,414 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2018-04-11 15:23:14,414 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand 25 states. [2018-04-11 15:23:15,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:15,125 INFO L93 Difference]: Finished difference Result 104 states and 115 transitions. [2018-04-11 15:23:15,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 15:23:15,125 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 26 [2018-04-11 15:23:15,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:15,126 INFO L225 Difference]: With dead ends: 104 [2018-04-11 15:23:15,126 INFO L226 Difference]: Without dead ends: 104 [2018-04-11 15:23:15,127 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=194, Invalid=1212, Unknown=0, NotChecked=0, Total=1406 [2018-04-11 15:23:15,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-04-11 15:23:15,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 90. [2018-04-11 15:23:15,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-04-11 15:23:15,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2018-04-11 15:23:15,130 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 26 [2018-04-11 15:23:15,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:15,131 INFO L459 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2018-04-11 15:23:15,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-11 15:23:15,131 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2018-04-11 15:23:15,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 15:23:15,131 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:15,131 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] [2018-04-11 15:23:15,131 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:15,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1803106191, now seen corresponding path program 1 times [2018-04-11 15:23:15,132 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:15,132 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:15,132 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:15,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:15,133 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:15,143 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:15,147 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:23:15,147 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:23:15,147 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:23:15,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:15,192 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:23:15,198 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 15:23:15,198 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:15,205 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 15:23:15,206 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:15,214 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:15,215 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-11 15:23:15,242 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:15,243 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 15:23:15,243 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:15,252 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:15,253 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:15,253 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 15:23:15,254 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:15,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:15,258 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-11 15:23:15,279 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 15:23:15,282 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 15:23:15,282 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:15,284 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:15,289 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:15,290 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:41, output treesize:32 [2018-04-11 15:23:15,318 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 15:23:15,320 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 15:23:15,320 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:15,323 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:15,329 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 15:23:15,330 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:39 [2018-04-11 15:23:15,446 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 15:23:15,452 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 15:23:15,452 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:23:15,465 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 15:23:15,466 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:15,470 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:23:15,488 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 15:23:15,489 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:56, output treesize:62 [2018-04-11 15:23:15,692 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 15:23:15,692 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 15:23:15,692 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-11 15:23:15,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 15:23:15,693 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 15:23:15,693 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-04-11 15:23:15,693 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 18 states. [2018-04-11 15:23:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:16,342 INFO L93 Difference]: Finished difference Result 110 states and 123 transitions. [2018-04-11 15:23:16,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 15:23:16,369 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 26 [2018-04-11 15:23:16,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:16,370 INFO L225 Difference]: With dead ends: 110 [2018-04-11 15:23:16,370 INFO L226 Difference]: Without dead ends: 110 [2018-04-11 15:23:16,370 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=140, Invalid=852, Unknown=0, NotChecked=0, Total=992 [2018-04-11 15:23:16,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-04-11 15:23:16,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2018-04-11 15:23:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-04-11 15:23:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2018-04-11 15:23:16,373 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 26 [2018-04-11 15:23:16,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:16,374 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2018-04-11 15:23:16,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 15:23:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2018-04-11 15:23:16,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 15:23:16,374 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:16,374 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] [2018-04-11 15:23:16,374 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:16,374 INFO L82 PathProgramCache]: Analyzing trace with hash 575850024, now seen corresponding path program 2 times [2018-04-11 15:23:16,374 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:16,375 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:16,375 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:16,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:16,375 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:16,383 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:16,610 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 15:23:16,610 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:23:16,610 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:23:16,611 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 15:23:16,638 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 15:23:16,639 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:23:16,643 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:23:16,658 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 15:23:16,658 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:16,660 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:16,660 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:23:16,672 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 16 treesize of output 13 [2018-04-11 15:23:16,673 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 15:23:16,673 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:16,675 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:16,677 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:16,677 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-11 15:23:16,795 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 5 treesize of output 1 [2018-04-11 15:23:16,795 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:16,800 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 21 treesize of output 17 [2018-04-11 15:23:16,805 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 15:23:16,805 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 15:23:16,807 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:23:16,812 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:23:16,812 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:40, output treesize:38 [2018-04-11 15:23:16,919 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 15:23:16,919 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:23:16,919 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2018-04-11 15:23:16,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-11 15:23:16,920 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-11 15:23:16,926 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2018-04-11 15:23:16,926 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 26 states. [2018-04-11 15:23:17,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:17,950 INFO L93 Difference]: Finished difference Result 150 states and 172 transitions. [2018-04-11 15:23:17,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 15:23:17,950 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 31 [2018-04-11 15:23:17,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:17,951 INFO L225 Difference]: With dead ends: 150 [2018-04-11 15:23:17,951 INFO L226 Difference]: Without dead ends: 150 [2018-04-11 15:23:17,952 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=227, Invalid=1495, Unknown=0, NotChecked=0, Total=1722 [2018-04-11 15:23:17,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-04-11 15:23:17,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 120. [2018-04-11 15:23:17,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-04-11 15:23:17,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2018-04-11 15:23:17,956 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 31 [2018-04-11 15:23:17,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:17,956 INFO L459 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2018-04-11 15:23:17,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-11 15:23:17,956 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2018-04-11 15:23:17,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-11 15:23:17,957 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:17,957 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] [2018-04-11 15:23:17,957 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:17,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1948171744, now seen corresponding path program 1 times [2018-04-11 15:23:17,957 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:17,957 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:17,958 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:17,958 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 15:23:17,958 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:17,966 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:17,968 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:23:17,968 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:23:17,968 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:23:17,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:17,981 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:23:18,031 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:18,033 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-11 15:23:18,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 23 treesize of output 15 [2018-04-11 15:23:18,035 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,039 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,042 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-11 15:23:18,042 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 15:23:18,066 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-04-11 15:23:18,069 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-04-11 15:23:18,071 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 15:23:18,072 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:23:18,072 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 15:23:18,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 15:23:18,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 15:23:18,072 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=22, Unknown=2, NotChecked=18, Total=56 [2018-04-11 15:23:18,072 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 8 states. [2018-04-11 15:23:18,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:18,126 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2018-04-11 15:23:18,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 15:23:18,126 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-04-11 15:23:18,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:18,127 INFO L225 Difference]: With dead ends: 119 [2018-04-11 15:23:18,127 INFO L226 Difference]: Without dead ends: 89 [2018-04-11 15:23:18,127 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=30, Unknown=2, NotChecked=22, Total=72 [2018-04-11 15:23:18,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-04-11 15:23:18,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-04-11 15:23:18,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-11 15:23:18,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2018-04-11 15:23:18,129 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 32 [2018-04-11 15:23:18,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:18,130 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2018-04-11 15:23:18,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 15:23:18,130 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2018-04-11 15:23:18,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-11 15:23:18,130 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:18,130 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:23:18,130 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:18,131 INFO L82 PathProgramCache]: Analyzing trace with hash -2133407846, now seen corresponding path program 2 times [2018-04-11 15:23:18,131 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:18,131 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:18,131 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:18,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:18,131 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:18,145 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:18,158 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:23:18,159 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:23:18,159 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:23:18,159 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 15:23:18,193 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 15:23:18,193 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:23:18,196 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:23:18,200 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 15:23:18,200 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,205 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 15:23:18,205 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,208 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,208 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 15:23:18,220 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:18,221 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 15:23:18,221 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,230 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:18,230 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:18,231 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 15:23:18,231 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,235 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 15:23:18,248 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 15:23:18,250 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 15:23:18,250 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,251 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,255 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,256 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:39, output treesize:32 [2018-04-11 15:23:18,269 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 15:23:18,270 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 15:23:18,270 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,274 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,278 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 15:23:18,278 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:39 [2018-04-11 15:23:18,403 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 31 treesize of output 29 [2018-04-11 15:23:18,408 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 15:23:18,408 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:23:18,415 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 15:23:18,415 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:18,417 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:23:18,425 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 15:23:18,425 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:48, output treesize:30 [2018-04-11 15:23:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:23:18,528 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 15:23:18,528 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-11 15:23:18,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 15:23:18,528 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 15:23:18,528 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2018-04-11 15:23:18,529 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 18 states. [2018-04-11 15:23:19,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:19,205 INFO L93 Difference]: Finished difference Result 112 states and 123 transitions. [2018-04-11 15:23:19,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-11 15:23:19,205 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 34 [2018-04-11 15:23:19,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:19,206 INFO L225 Difference]: With dead ends: 112 [2018-04-11 15:23:19,206 INFO L226 Difference]: Without dead ends: 112 [2018-04-11 15:23:19,206 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2018-04-11 15:23:19,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-04-11 15:23:19,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2018-04-11 15:23:19,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-04-11 15:23:19,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 122 transitions. [2018-04-11 15:23:19,209 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 122 transitions. Word has length 34 [2018-04-11 15:23:19,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:19,210 INFO L459 AbstractCegarLoop]: Abstraction has 109 states and 122 transitions. [2018-04-11 15:23:19,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 15:23:19,210 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 122 transitions. [2018-04-11 15:23:19,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 15:23:19,211 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:19,211 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:23:19,211 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:19,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1541599117, now seen corresponding path program 3 times [2018-04-11 15:23:19,211 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:19,211 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:19,212 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:19,212 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 15:23:19,212 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:19,220 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-11 15:23:19,387 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:23:19,387 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:23:19,387 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 15:23:19,417 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-11 15:23:19,417 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:23:19,420 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:23:19,427 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 15:23:19,427 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:19,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:19,429 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:23:19,439 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 15:23:19,441 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 15:23:19,442 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:19,443 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:19,445 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:19,445 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-11 15:23:19,515 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 21 treesize of output 17 [2018-04-11 15:23:19,521 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 15:23:19,521 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:23:19,524 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:23:19,530 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:23:19,531 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-11 15:23:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-11 15:23:19,579 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:23:19,579 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2018-04-11 15:23:19,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 15:23:19,579 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 15:23:19,579 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2018-04-11 15:23:19,579 INFO L87 Difference]: Start difference. First operand 109 states and 122 transitions. Second operand 17 states. [2018-04-11 15:23:19,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:19,886 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2018-04-11 15:23:19,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 15:23:19,886 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 36 [2018-04-11 15:23:19,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:19,886 INFO L225 Difference]: With dead ends: 108 [2018-04-11 15:23:19,886 INFO L226 Difference]: Without dead ends: 79 [2018-04-11 15:23:19,887 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 27 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=602, Unknown=0, NotChecked=0, Total=756 [2018-04-11 15:23:19,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-11 15:23:19,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 43. [2018-04-11 15:23:19,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-04-11 15:23:19,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2018-04-11 15:23:19,888 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 36 [2018-04-11 15:23:19,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:19,888 INFO L459 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2018-04-11 15:23:19,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 15:23:19,888 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2018-04-11 15:23:19,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-11 15:23:19,889 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:19,889 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:23:19,889 INFO L408 AbstractCegarLoop]: === Iteration 17 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:19,889 INFO L82 PathProgramCache]: Analyzing trace with hash -963306331, now seen corresponding path program 3 times [2018-04-11 15:23:19,889 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:19,889 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:19,890 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:19,890 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 15:23:19,890 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:19,899 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:19,906 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:23:19,906 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:23:19,906 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:23:19,907 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 15:23:19,958 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-11 15:23:19,959 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:23:19,962 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:23:19,965 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 15:23:19,965 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:19,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:23:19,969 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:19,973 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:19,973 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 15:23:19,988 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:19,997 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 15:23:19,998 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:20,009 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:20,010 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:20,011 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 15:23:20,011 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:20,019 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:20,019 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-11 15:23:20,047 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 15:23:20,049 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 15:23:20,050 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:20,051 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:20,060 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:20,060 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2018-04-11 15:23:20,084 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 15:23:20,086 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 15:23:20,086 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:20,090 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:20,095 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:20,095 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:39, output treesize:35 [2018-04-11 15:23:20,708 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 57 treesize of output 47 [2018-04-11 15:23:20,710 INFO L682 Elim1Store]: detected equality via solver [2018-04-11 15:23:20,711 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:20,712 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:20,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2018-04-11 15:23:20,713 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:20,722 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:20,723 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:20,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 25 [2018-04-11 15:23:20,727 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 15:23:20,738 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:23:20,763 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 2 xjuncts. [2018-04-11 15:23:20,763 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:84, output treesize:80 [2018-04-11 15:23:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:23:21,070 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 15:23:21,070 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-11 15:23:21,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-11 15:23:21,071 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-11 15:23:21,071 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=650, Unknown=0, NotChecked=0, Total=702 [2018-04-11 15:23:21,071 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 27 states. [2018-04-11 15:23:23,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:23,059 INFO L93 Difference]: Finished difference Result 73 states and 79 transitions. [2018-04-11 15:23:23,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-11 15:23:23,059 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 42 [2018-04-11 15:23:23,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:23,060 INFO L225 Difference]: With dead ends: 73 [2018-04-11 15:23:23,060 INFO L226 Difference]: Without dead ends: 73 [2018-04-11 15:23:23,061 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=191, Invalid=2359, Unknown=0, NotChecked=0, Total=2550 [2018-04-11 15:23:23,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-04-11 15:23:23,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 64. [2018-04-11 15:23:23,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-11 15:23:23,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2018-04-11 15:23:23,062 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 42 [2018-04-11 15:23:23,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:23,062 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2018-04-11 15:23:23,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-11 15:23:23,062 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2018-04-11 15:23:23,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 15:23:23,063 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:23:23,063 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:23:23,063 INFO L408 AbstractCegarLoop]: === Iteration 18 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:23:23,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1942564946, now seen corresponding path program 1 times [2018-04-11 15:23:23,063 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:23:23,063 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:23:23,064 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:23,064 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 15:23:23,064 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:23:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:23,071 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:23:23,082 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:23:23,082 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:23:23,082 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:23:23,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:23:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:23:23,104 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:23:23,107 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 15:23:23,108 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:23,112 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 15:23:23,112 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:23,115 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:23,115 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 15:23:23,125 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:23,126 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 15:23:23,126 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:23,132 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:23,133 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:23:23,133 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 15:23:23,133 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:23,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:23,137 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-11 15:23:23,150 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 15:23:23,155 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 15:23:23,156 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:23,157 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:23,160 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:23,160 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-11 15:23:23,171 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 15:23:23,172 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 15:23:23,172 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:23,175 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:23:23,178 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 15:23:23,178 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-11 15:23:23,248 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 15:23:23,250 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 15:23:23,250 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:23:23,258 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 15:23:23,259 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-11 15:23:23,261 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:23:23,266 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:23:23,267 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:40 [2018-04-11 15:23:23,370 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-04-11 15:23:23,370 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 15:23:23,370 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-11 15:23:23,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 15:23:23,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 15:23:23,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2018-04-11 15:23:23,371 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand 17 states. [2018-04-11 15:23:23,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:23:23,881 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2018-04-11 15:23:23,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-11 15:23:23,882 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 47 [2018-04-11 15:23:23,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:23:23,882 INFO L225 Difference]: With dead ends: 72 [2018-04-11 15:23:23,882 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 15:23:23,883 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=730, Unknown=0, NotChecked=0, Total=870 [2018-04-11 15:23:23,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 15:23:23,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 15:23:23,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 15:23:23,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 15:23:23,883 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2018-04-11 15:23:23,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:23:23,883 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 15:23:23,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 15:23:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 15:23:23,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 15:23:23,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 03:23:23 BoogieIcfgContainer [2018-04-11 15:23:23,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 15:23:23,887 INFO L168 Benchmark]: Toolchain (without parser) took 12933.97 ms. Allocated memory was 406.3 MB in the beginning and 768.6 MB in the end (delta: 362.3 MB). Free memory was 340.7 MB in the beginning and 651.3 MB in the end (delta: -310.5 MB). Peak memory consumption was 51.7 MB. Max. memory is 5.3 GB. [2018-04-11 15:23:23,887 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 406.3 MB. Free memory is still 366.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 15:23:23,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.13 ms. Allocated memory is still 406.3 MB. Free memory was 338.9 MB in the beginning and 315.0 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-04-11 15:23:23,888 INFO L168 Benchmark]: Boogie Preprocessor took 41.65 ms. Allocated memory is still 406.3 MB. Free memory was 315.0 MB in the beginning and 313.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-11 15:23:23,888 INFO L168 Benchmark]: RCFGBuilder took 368.35 ms. Allocated memory was 406.3 MB in the beginning and 598.7 MB in the end (delta: 192.4 MB). Free memory was 312.4 MB in the beginning and 534.8 MB in the end (delta: -222.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 5.3 GB. [2018-04-11 15:23:23,888 INFO L168 Benchmark]: TraceAbstraction took 12284.36 ms. Allocated memory was 598.7 MB in the beginning and 768.6 MB in the end (delta: 169.9 MB). Free memory was 534.8 MB in the beginning and 651.3 MB in the end (delta: -116.5 MB). Peak memory consumption was 53.4 MB. Max. memory is 5.3 GB. [2018-04-11 15:23:23,889 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 406.3 MB. Free memory is still 366.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 237.13 ms. Allocated memory is still 406.3 MB. Free memory was 338.9 MB in the beginning and 315.0 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 41.65 ms. Allocated memory is still 406.3 MB. Free memory was 315.0 MB in the beginning and 313.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 368.35 ms. Allocated memory was 406.3 MB in the beginning and 598.7 MB in the end (delta: 192.4 MB). Free memory was 312.4 MB in the beginning and 534.8 MB in the end (delta: -222.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 12284.36 ms. Allocated memory was 598.7 MB in the beginning and 768.6 MB in the end (delta: 169.9 MB). Free memory was 534.8 MB in the beginning and 651.3 MB in the end (delta: -116.5 MB). Peak memory consumption was 53.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 51 locations, 9 error locations. SAFE Result, 12.2s OverallTime, 18 OverallIterations, 4 TraceHistogramMax, 7.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 505 SDtfs, 1016 SDslu, 3035 SDs, 0 SdLazy, 3565 SolverSat, 222 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 549 GetRequests, 193 SyntacticMatches, 11 SemanticMatches, 345 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1403 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 18 MinimizatonAttempts, 136 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 784 NumberOfCodeBlocks, 784 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 530 ConstructedInterpolants, 91 QuantifiedInterpolants, 260750 SizeOfPredicates, 154 NumberOfNonLiveVariables, 1659 ConjunctsInSsa, 468 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 33/157 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_15-23-23-894.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_15-23-23-894.csv Received shutdown request...