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 0.1.23-408c70d-m [2018-04-13 04:40:55,914 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-13 04:40:55,916 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-13 04:40:55,928 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-13 04:40:55,929 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-13 04:40:55,930 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-13 04:40:55,930 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-13 04:40:55,932 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-13 04:40:55,933 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-13 04:40:55,934 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-13 04:40:55,935 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-13 04:40:55,935 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-13 04:40:55,935 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-13 04:40:55,936 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-13 04:40:55,937 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-13 04:40:55,938 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-13 04:40:55,940 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-13 04:40:55,941 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-13 04:40:55,942 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-13 04:40:55,943 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-13 04:40:55,945 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-13 04:40:55,945 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-13 04:40:55,945 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-13 04:40:55,946 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-13 04:40:55,946 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-13 04:40:55,947 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-13 04:40:55,947 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-13 04:40:55,948 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-13 04:40:55,948 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-13 04:40:55,949 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-13 04:40:55,949 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-13 04:40:55,949 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 [2018-04-13 04:40:55,958 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-13 04:40:55,958 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-13 04:40:55,959 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-13 04:40:55,959 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-13 04:40:55,959 INFO L133 SettingsManager]: * Use SBE=true [2018-04-13 04:40:55,960 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-13 04:40:55,960 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-13 04:40:55,960 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-13 04:40:55,960 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-13 04:40:55,960 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-13 04:40:55,960 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-13 04:40:55,961 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-13 04:40:55,961 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-13 04:40:55,961 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-13 04:40:55,961 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-13 04:40:55,961 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-13 04:40:55,961 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-13 04:40:55,961 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-13 04:40:55,961 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-13 04:40:55,961 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-13 04:40:55,962 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-13 04:40:55,962 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-13 04:40:55,962 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-13 04:40:55,962 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-13 04:40:55,990 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-13 04:40:56,000 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-13 04:40:56,003 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-13 04:40:56,004 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-13 04:40:56,004 INFO L276 PluginConnector]: CDTParser initialized [2018-04-13 04:40:56,005 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 [2018-04-13 04:40:56,286 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd3d1d14f5 [2018-04-13 04:40:56,422 INFO L287 CDTParser]: IsIndexed: true [2018-04-13 04:40:56,423 INFO L288 CDTParser]: Found 1 translation units. [2018-04-13 04:40:56,423 INFO L168 CDTParser]: Scanning openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-13 04:40:56,430 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-13 04:40:56,430 INFO L215 ultiparseSymbolTable]: [2018-04-13 04:40:56,430 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-13 04:40:56,430 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 [2018-04-13 04:40:56,431 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,431 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,432 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,433 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,434 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 [2018-04-13 04:40:56,435 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 [2018-04-13 04:40:56,435 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 [2018-04-13 04:40:56,435 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 [2018-04-13 04:40:56,435 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 [2018-04-13 04:40:56,435 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 [2018-04-13 04:40:56,435 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 [2018-04-13 04:40:56,435 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 [2018-04-13 04:40:56,435 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 [2018-04-13 04:40:56,435 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 [2018-04-13 04:40:56,435 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 [2018-04-13 04:40:56,435 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 [2018-04-13 04:40:56,435 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 [2018-04-13 04:40:56,436 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 [2018-04-13 04:40:56,436 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 [2018-04-13 04:40:56,436 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 [2018-04-13 04:40:56,436 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 [2018-04-13 04:40:56,436 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 [2018-04-13 04:40:56,436 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 [2018-04-13 04:40:56,436 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 [2018-04-13 04:40:56,436 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 [2018-04-13 04:40:56,436 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 [2018-04-13 04:40:56,436 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,437 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,438 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 [2018-04-13 04:40:56,439 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 [2018-04-13 04:40:56,439 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 [2018-04-13 04:40:56,439 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 [2018-04-13 04:40:56,439 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 [2018-04-13 04:40:56,439 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 [2018-04-13 04:40:56,439 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 [2018-04-13 04:40:56,439 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 [2018-04-13 04:40:56,439 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 [2018-04-13 04:40:56,439 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 [2018-04-13 04:40:56,476 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGd3d1d14f5 [2018-04-13 04:40:56,478 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-13 04:40:56,479 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-13 04:40:56,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-13 04:40:56,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-13 04:40:56,485 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-13 04:40:56,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 04:40:56" (1/1) ... [2018-04-13 04:40:56,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ad83cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 04:40:56, skipping insertion in model container [2018-04-13 04:40:56,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 04:40:56" (1/1) ... [2018-04-13 04:40:56,501 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 04:40:56,522 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 04:40:56,645 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 04:40:56,675 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 04:40:56,680 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-13 04:40:56,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 04:40:56 WrapperNode [2018-04-13 04:40:56,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-13 04:40:56,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-13 04:40:56,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-13 04:40:56,715 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-13 04:40:56,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 04:40:56" (1/1) ... [2018-04-13 04:40:56,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 04:40:56" (1/1) ... [2018-04-13 04:40:56,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 04:40:56" (1/1) ... [2018-04-13 04:40:56,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 04:40:56" (1/1) ... [2018-04-13 04:40:56,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 04:40:56" (1/1) ... [2018-04-13 04:40:56,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 04:40:56" (1/1) ... [2018-04-13 04:40:56,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 04:40:56" (1/1) ... [2018-04-13 04:40:56,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-13 04:40:56,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-13 04:40:56,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-13 04:40:56,757 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-13 04:40:56,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 04:40:56" (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 [2018-04-13 04:40:56,831 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-13 04:40:56,831 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-13 04:40:56,831 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-13 04:40:56,831 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-13 04:40:56,832 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-04-13 04:40:56,832 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-13 04:40:56,832 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-13 04:40:56,832 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-13 04:40:56,832 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-13 04:40:56,832 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-13 04:40:56,832 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-13 04:40:56,832 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-13 04:40:56,832 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-13 04:40:56,832 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-13 04:40:56,832 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-13 04:40:56,832 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-13 04:40:56,832 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-13 04:40:56,833 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-13 04:40:56,833 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-13 04:40:56,833 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-13 04:40:56,833 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-13 04:40:56,833 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-13 04:40:56,833 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-13 04:40:56,833 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-13 04:40:56,833 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-13 04:40:56,834 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-13 04:40:56,834 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-13 04:40:56,834 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-13 04:40:56,834 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-13 04:40:56,834 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-13 04:40:56,834 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-13 04:40:56,834 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-13 04:40:56,834 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-13 04:40:56,834 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-13 04:40:56,835 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-13 04:40:56,835 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-13 04:40:56,835 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-13 04:40:56,835 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-13 04:40:56,835 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-13 04:40:56,835 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-13 04:40:56,835 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-13 04:40:56,835 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-13 04:40:56,835 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-13 04:40:56,835 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-13 04:40:56,836 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-13 04:40:56,836 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-13 04:40:56,836 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-13 04:40:56,836 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-13 04:40:56,836 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-13 04:40:56,836 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-13 04:40:56,836 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-13 04:40:56,836 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-13 04:40:56,836 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-13 04:40:56,837 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-13 04:40:56,837 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-13 04:40:56,837 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-13 04:40:56,837 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-13 04:40:56,837 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-13 04:40:56,837 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-13 04:40:56,837 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-13 04:40:56,837 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-13 04:40:56,837 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-13 04:40:56,837 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-13 04:40:56,838 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-13 04:40:56,838 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-13 04:40:56,838 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-13 04:40:56,838 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-13 04:40:56,838 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-13 04:40:56,838 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-13 04:40:56,838 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-13 04:40:56,838 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-13 04:40:56,838 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-13 04:40:56,838 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-13 04:40:56,839 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-13 04:40:56,839 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-13 04:40:56,839 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-13 04:40:56,839 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-13 04:40:56,839 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-13 04:40:56,839 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-13 04:40:56,839 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-13 04:40:56,839 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-13 04:40:56,839 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-13 04:40:56,839 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-13 04:40:56,840 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-13 04:40:56,840 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-13 04:40:56,840 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-13 04:40:56,840 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-13 04:40:56,840 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-13 04:40:56,840 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-13 04:40:56,840 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-13 04:40:56,840 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-13 04:40:56,840 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-13 04:40:56,840 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-13 04:40:56,840 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-13 04:40:56,841 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-13 04:40:56,841 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-13 04:40:56,841 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-13 04:40:56,841 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-13 04:40:56,841 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-13 04:40:56,841 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-13 04:40:56,841 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-13 04:40:56,841 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-13 04:40:56,841 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-13 04:40:56,841 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-13 04:40:56,841 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-13 04:40:56,842 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-13 04:40:56,842 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-13 04:40:56,842 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-13 04:40:56,842 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-13 04:40:56,842 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-04-13 04:40:56,842 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-13 04:40:56,842 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-13 04:40:56,842 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-13 04:40:56,842 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-13 04:40:56,843 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-13 04:40:56,843 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-13 04:40:56,843 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-13 04:40:56,843 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-13 04:40:57,101 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-13 04:40:57,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 04:40:57 BoogieIcfgContainer [2018-04-13 04:40:57,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-13 04:40:57,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-13 04:40:57,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-13 04:40:57,104 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-13 04:40:57,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 04:40:56" (1/3) ... [2018-04-13 04:40:57,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4158ec46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 04:40:57, skipping insertion in model container [2018-04-13 04:40:57,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 04:40:56" (2/3) ... [2018-04-13 04:40:57,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4158ec46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 04:40:57, skipping insertion in model container [2018-04-13 04:40:57,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 04:40:57" (3/3) ... [2018-04-13 04:40:57,106 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-13 04:40:57,111 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-13 04:40:57,116 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-13 04:40:57,138 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-13 04:40:57,139 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-13 04:40:57,139 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-13 04:40:57,139 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-13 04:40:57,139 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-13 04:40:57,139 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-13 04:40:57,139 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-13 04:40:57,139 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-13 04:40:57,140 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-13 04:40:57,140 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-13 04:40:57,148 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-04-13 04:40:57,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-13 04:40:57,154 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:40:57,155 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 04:40:57,155 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]=== [2018-04-13 04:40:57,157 INFO L82 PathProgramCache]: Analyzing trace with hash -376792556, now seen corresponding path program 1 times [2018-04-13 04:40:57,158 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:40:57,158 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:40:57,185 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:57,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:57,186 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:57,222 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:40:57,235 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 04:40:57,235 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 04:40:57,235 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 04:40:57,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:57,272 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 04:40:57,301 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 [2018-04-13 04:40:57,302 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:57,306 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:40:57,306 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-13 04:40:57,321 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:40:57,322 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:40:57,323 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 [2018-04-13 04:40:57,323 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:57,329 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. [2018-04-13 04:40:57,330 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-04-13 04:40:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:40:57,343 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 04:40:57,344 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-13 04:40:57,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-13 04:40:57,352 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-13 04:40:57,353 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-04-13 04:40:57,354 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2018-04-13 04:40:57,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:40:57,437 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-04-13 04:40:57,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-13 04:40:57,439 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-04-13 04:40:57,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:40:57,446 INFO L225 Difference]: With dead ends: 44 [2018-04-13 04:40:57,447 INFO L226 Difference]: Without dead ends: 41 [2018-04-13 04:40:57,448 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 [2018-04-13 04:40:57,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-13 04:40:57,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-04-13 04:40:57,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-13 04:40:57,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-04-13 04:40:57,470 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 13 [2018-04-13 04:40:57,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:40:57,470 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-04-13 04:40:57,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-13 04:40:57,470 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-04-13 04:40:57,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-13 04:40:57,470 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:40:57,470 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 04:40:57,471 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]=== [2018-04-13 04:40:57,471 INFO L82 PathProgramCache]: Analyzing trace with hash -376792555, now seen corresponding path program 1 times [2018-04-13 04:40:57,471 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:40:57,471 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:40:57,472 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:57,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:57,472 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:57,480 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:40:57,485 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 04:40:57,485 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 04:40:57,485 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 04:40:57,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:57,506 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 04:40:57,520 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 [2018-04-13 04:40:57,520 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:57,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 04:40:57,527 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:57,531 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:40:57,531 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-13 04:40:57,550 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:40:57,551 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:40:57,551 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 [2018-04-13 04:40:57,552 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:57,565 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 [2018-04-13 04:40:57,565 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:57,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:40:57,573 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-04-13 04:40:57,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:40:57,584 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 04:40:57,584 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-13 04:40:57,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-13 04:40:57,584 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-13 04:40:57,585 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-13 04:40:57,585 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2018-04-13 04:40:57,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:40:57,645 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-04-13 04:40:57,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-13 04:40:57,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-13 04:40:57,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:40:57,646 INFO L225 Difference]: With dead ends: 40 [2018-04-13 04:40:57,646 INFO L226 Difference]: Without dead ends: 40 [2018-04-13 04:40:57,646 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 [2018-04-13 04:40:57,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-13 04:40:57,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-13 04:40:57,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-13 04:40:57,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-04-13 04:40:57,648 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 13 [2018-04-13 04:40:57,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:40:57,649 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-04-13 04:40:57,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-13 04:40:57,649 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-04-13 04:40:57,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-13 04:40:57,649 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:40:57,649 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 04:40:57,649 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]=== [2018-04-13 04:40:57,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1204332646, now seen corresponding path program 1 times [2018-04-13 04:40:57,649 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:40:57,649 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:40:57,650 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:57,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:57,650 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:57,657 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:40:57,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:40:57,686 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 04:40:57,686 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-13 04:40:57,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-13 04:40:57,687 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-13 04:40:57,687 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-13 04:40:57,687 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 4 states. [2018-04-13 04:40:57,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:40:57,721 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-04-13 04:40:57,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-13 04:40:57,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-13 04:40:57,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:40:57,723 INFO L225 Difference]: With dead ends: 39 [2018-04-13 04:40:57,723 INFO L226 Difference]: Without dead ends: 39 [2018-04-13 04:40:57,723 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 [2018-04-13 04:40:57,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-04-13 04:40:57,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-04-13 04:40:57,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-13 04:40:57,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-04-13 04:40:57,726 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 14 [2018-04-13 04:40:57,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:40:57,726 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-04-13 04:40:57,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-13 04:40:57,726 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-04-13 04:40:57,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-13 04:40:57,727 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:40:57,727 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 04:40:57,727 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]=== [2018-04-13 04:40:57,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1204332647, now seen corresponding path program 1 times [2018-04-13 04:40:57,728 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:40:57,728 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:40:57,729 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:57,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:57,729 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:57,741 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:40:57,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:40:57,790 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 04:40:57,790 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-13 04:40:57,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-13 04:40:57,790 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-13 04:40:57,791 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-13 04:40:57,791 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 5 states. [2018-04-13 04:40:57,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:40:57,822 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2018-04-13 04:40:57,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-13 04:40:57,822 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-13 04:40:57,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:40:57,823 INFO L225 Difference]: With dead ends: 38 [2018-04-13 04:40:57,823 INFO L226 Difference]: Without dead ends: 38 [2018-04-13 04:40:57,823 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 [2018-04-13 04:40:57,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-04-13 04:40:57,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-04-13 04:40:57,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-04-13 04:40:57,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-04-13 04:40:57,826 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 14 [2018-04-13 04:40:57,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:40:57,826 INFO L459 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-04-13 04:40:57,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-13 04:40:57,826 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-04-13 04:40:57,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-13 04:40:57,827 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:40:57,827 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 04:40:57,827 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]=== [2018-04-13 04:40:57,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1759820867, now seen corresponding path program 1 times [2018-04-13 04:40:57,827 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:40:57,827 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:40:57,828 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:57,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:57,828 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:57,838 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:40:57,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:40:57,873 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 04:40:57,873 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-13 04:40:57,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-13 04:40:57,874 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-13 04:40:57,874 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-13 04:40:57,874 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 6 states. [2018-04-13 04:40:57,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:40:57,917 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-04-13 04:40:57,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-13 04:40:57,917 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-04-13 04:40:57,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:40:57,917 INFO L225 Difference]: With dead ends: 37 [2018-04-13 04:40:57,917 INFO L226 Difference]: Without dead ends: 37 [2018-04-13 04:40:57,918 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 [2018-04-13 04:40:57,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-04-13 04:40:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-04-13 04:40:57,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-04-13 04:40:57,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-04-13 04:40:57,919 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 18 [2018-04-13 04:40:57,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:40:57,919 INFO L459 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-04-13 04:40:57,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-13 04:40:57,920 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-04-13 04:40:57,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-13 04:40:57,920 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:40:57,920 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 04:40:57,920 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]=== [2018-04-13 04:40:57,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1759820868, now seen corresponding path program 1 times [2018-04-13 04:40:57,920 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:40:57,920 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:40:57,921 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:57,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:57,921 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:57,929 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:40:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:40:57,990 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 04:40:57,990 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-13 04:40:57,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-13 04:40:57,990 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-13 04:40:57,990 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-13 04:40:57,991 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 9 states. [2018-04-13 04:40:58,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:40:58,080 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-04-13 04:40:58,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-13 04:40:58,080 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-04-13 04:40:58,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:40:58,081 INFO L225 Difference]: With dead ends: 40 [2018-04-13 04:40:58,081 INFO L226 Difference]: Without dead ends: 40 [2018-04-13 04:40:58,081 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 [2018-04-13 04:40:58,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-13 04:40:58,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-04-13 04:40:58,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-13 04:40:58,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-04-13 04:40:58,084 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 18 [2018-04-13 04:40:58,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:40:58,084 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-04-13 04:40:58,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-13 04:40:58,084 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-04-13 04:40:58,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-13 04:40:58,085 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:40:58,085 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] [2018-04-13 04:40:58,085 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]=== [2018-04-13 04:40:58,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1842322422, now seen corresponding path program 1 times [2018-04-13 04:40:58,085 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:40:58,085 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:40:58,086 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:58,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:58,086 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:58,096 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:40:58,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:40:58,166 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 04:40:58,167 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-13 04:40:58,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-13 04:40:58,167 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-13 04:40:58,167 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-04-13 04:40:58,167 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 10 states. [2018-04-13 04:40:58,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:40:58,254 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-04-13 04:40:58,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-13 04:40:58,254 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2018-04-13 04:40:58,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:40:58,254 INFO L225 Difference]: With dead ends: 44 [2018-04-13 04:40:58,254 INFO L226 Difference]: Without dead ends: 44 [2018-04-13 04:40:58,255 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 [2018-04-13 04:40:58,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-04-13 04:40:58,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2018-04-13 04:40:58,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-13 04:40:58,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2018-04-13 04:40:58,257 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 21 [2018-04-13 04:40:58,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:40:58,257 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2018-04-13 04:40:58,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-13 04:40:58,257 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2018-04-13 04:40:58,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-04-13 04:40:58,257 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:40:58,257 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] [2018-04-13 04:40:58,257 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]=== [2018-04-13 04:40:58,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1842322423, now seen corresponding path program 1 times [2018-04-13 04:40:58,258 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:40:58,258 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:40:58,258 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:58,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:58,258 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:58,266 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:40:58,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:40:58,295 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 04:40:58,296 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-13 04:40:58,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-13 04:40:58,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-13 04:40:58,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-13 04:40:58,296 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 7 states. [2018-04-13 04:40:58,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:40:58,373 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-04-13 04:40:58,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-13 04:40:58,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-04-13 04:40:58,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:40:58,373 INFO L225 Difference]: With dead ends: 41 [2018-04-13 04:40:58,374 INFO L226 Difference]: Without dead ends: 41 [2018-04-13 04:40:58,374 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 [2018-04-13 04:40:58,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-13 04:40:58,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-04-13 04:40:58,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-13 04:40:58,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-04-13 04:40:58,376 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 21 [2018-04-13 04:40:58,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:40:58,376 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-04-13 04:40:58,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-13 04:40:58,376 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-04-13 04:40:58,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-13 04:40:58,377 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:40:58,377 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] [2018-04-13 04:40:58,377 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]=== [2018-04-13 04:40:58,377 INFO L82 PathProgramCache]: Analyzing trace with hash 14731087, now seen corresponding path program 1 times [2018-04-13 04:40:58,377 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:40:58,377 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:40:58,378 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:58,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:58,378 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:58,390 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:40:58,393 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 04:40:58,393 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 04:40:58,393 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 04:40:58,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:58,432 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 04:40:58,439 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 [2018-04-13 04:40:58,440 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:58,442 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:40:58,443 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-13 04:40:58,458 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:40:58,459 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:40:58,459 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 [2018-04-13 04:40:58,459 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:58,463 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:40:58,463 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:11 [2018-04-13 04:40:58,477 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 [2018-04-13 04:40:58,478 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 [2018-04-13 04:40:58,478 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:58,479 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:40:58,484 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. [2018-04-13 04:40:58,484 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-04-13 04:40:58,497 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 [2018-04-13 04:40:58,498 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 [2018-04-13 04:40:58,498 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:58,501 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:40:58,508 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. [2018-04-13 04:40:58,508 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:40, output treesize:36 [2018-04-13 04:40:58,583 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 [2018-04-13 04:40:58,585 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 04:40:58,585 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 [2018-04-13 04:40:58,585 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:58,590 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 [2018-04-13 04:40:58,590 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:58,591 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:40:58,599 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:40:58,599 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:49, output treesize:3 [2018-04-13 04:40:58,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:40:58,629 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 04:40:58,630 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-04-13 04:40:58,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-04-13 04:40:58,630 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-04-13 04:40:58,630 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2018-04-13 04:40:58,630 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 15 states. [2018-04-13 04:40:58,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:40:58,999 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2018-04-13 04:40:59,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-13 04:40:59,000 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 26 [2018-04-13 04:40:59,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:40:59,000 INFO L225 Difference]: With dead ends: 71 [2018-04-13 04:40:59,000 INFO L226 Difference]: Without dead ends: 71 [2018-04-13 04:40:59,001 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 [2018-04-13 04:40:59,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-04-13 04:40:59,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 62. [2018-04-13 04:40:59,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-04-13 04:40:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2018-04-13 04:40:59,003 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 26 [2018-04-13 04:40:59,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:40:59,003 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2018-04-13 04:40:59,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-04-13 04:40:59,003 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2018-04-13 04:40:59,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-13 04:40:59,004 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:40:59,004 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] [2018-04-13 04:40:59,004 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]=== [2018-04-13 04:40:59,004 INFO L82 PathProgramCache]: Analyzing trace with hash 14733265, now seen corresponding path program 1 times [2018-04-13 04:40:59,004 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:40:59,004 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:40:59,005 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:59,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:59,005 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:59,016 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:40:59,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:40:59,100 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 04:40:59,100 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-13 04:40:59,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-13 04:40:59,100 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-13 04:40:59,100 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-04-13 04:40:59,100 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand 12 states. [2018-04-13 04:40:59,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:40:59,214 INFO L93 Difference]: Finished difference Result 105 states and 110 transitions. [2018-04-13 04:40:59,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-13 04:40:59,214 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2018-04-13 04:40:59,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:40:59,216 INFO L225 Difference]: With dead ends: 105 [2018-04-13 04:40:59,217 INFO L226 Difference]: Without dead ends: 105 [2018-04-13 04:40:59,217 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 [2018-04-13 04:40:59,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-04-13 04:40:59,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 80. [2018-04-13 04:40:59,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-04-13 04:40:59,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 86 transitions. [2018-04-13 04:40:59,221 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 86 transitions. Word has length 26 [2018-04-13 04:40:59,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:40:59,221 INFO L459 AbstractCegarLoop]: Abstraction has 80 states and 86 transitions. [2018-04-13 04:40:59,222 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-13 04:40:59,222 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 86 transitions. [2018-04-13 04:40:59,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-13 04:40:59,222 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:40:59,222 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] [2018-04-13 04:40:59,223 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]=== [2018-04-13 04:40:59,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1674210477, now seen corresponding path program 1 times [2018-04-13 04:40:59,223 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:40:59,223 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:40:59,224 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:59,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:59,224 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:40:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:59,232 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:40:59,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:40:59,359 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 04:40:59,359 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 04:40:59,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:40:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:40:59,378 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 04:40:59,423 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 [2018-04-13 04:40:59,423 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:59,425 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:40:59,425 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 04:40:59,448 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 [2018-04-13 04:40:59,450 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 [2018-04-13 04:40:59,450 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:40:59,451 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:40:59,454 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:40:59,454 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-04-13 04:40:59,590 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 [2018-04-13 04:40:59,596 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 [2018-04-13 04:40:59,596 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 04:40:59,598 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:40:59,605 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:40:59,606 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:54 [2018-04-13 04:40:59,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:40:59,708 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-13 04:40:59,708 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2018-04-13 04:40:59,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-13 04:40:59,708 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-13 04:40:59,708 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2018-04-13 04:40:59,708 INFO L87 Difference]: Start difference. First operand 80 states and 86 transitions. Second operand 25 states. [2018-04-13 04:41:00,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:41:00,354 INFO L93 Difference]: Finished difference Result 104 states and 115 transitions. [2018-04-13 04:41:00,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-13 04:41:00,354 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 26 [2018-04-13 04:41:00,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:41:00,355 INFO L225 Difference]: With dead ends: 104 [2018-04-13 04:41:00,355 INFO L226 Difference]: Without dead ends: 104 [2018-04-13 04:41:00,355 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=194, Invalid=1212, Unknown=0, NotChecked=0, Total=1406 [2018-04-13 04:41:00,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-04-13 04:41:00,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 90. [2018-04-13 04:41:00,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-04-13 04:41:00,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2018-04-13 04:41:00,359 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 26 [2018-04-13 04:41:00,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:41:00,360 INFO L459 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2018-04-13 04:41:00,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-13 04:41:00,360 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2018-04-13 04:41:00,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-13 04:41:00,360 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:41:00,360 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] [2018-04-13 04:41:00,360 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]=== [2018-04-13 04:41:00,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1803106191, now seen corresponding path program 1 times [2018-04-13 04:41:00,361 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:41:00,361 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:41:00,361 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:00,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:41:00,361 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:41:00,370 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:41:00,374 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 04:41:00,374 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 04:41:00,374 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 04:41:00,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:41:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:41:00,400 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 04:41:00,413 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 [2018-04-13 04:41:00,414 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:00,418 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 [2018-04-13 04:41:00,418 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:00,421 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:00,421 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-13 04:41:00,437 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:00,438 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 [2018-04-13 04:41:00,439 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:00,447 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:00,448 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:00,448 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 [2018-04-13 04:41:00,448 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:00,453 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:00,453 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-13 04:41:00,476 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 [2018-04-13 04:41:00,478 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 [2018-04-13 04:41:00,478 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:00,479 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:00,485 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:00,485 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:41, output treesize:32 [2018-04-13 04:41:00,500 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 [2018-04-13 04:41:00,503 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 [2018-04-13 04:41:00,503 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:00,506 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:00,512 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. [2018-04-13 04:41:00,512 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:39 [2018-04-13 04:41:00,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2018-04-13 04:41:00,605 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 [2018-04-13 04:41:00,605 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 04:41:00,611 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 [2018-04-13 04:41:00,611 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:00,616 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:41:00,624 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:41:00,624 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:56, output treesize:62 [2018-04-13 04:41:00,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:41:00,768 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 04:41:00,768 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-13 04:41:00,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-13 04:41:00,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-13 04:41:00,769 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-04-13 04:41:00,769 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand 18 states. [2018-04-13 04:41:01,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:41:01,390 INFO L93 Difference]: Finished difference Result 110 states and 123 transitions. [2018-04-13 04:41:01,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-13 04:41:01,391 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 26 [2018-04-13 04:41:01,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:41:01,391 INFO L225 Difference]: With dead ends: 110 [2018-04-13 04:41:01,391 INFO L226 Difference]: Without dead ends: 110 [2018-04-13 04:41:01,392 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=140, Invalid=852, Unknown=0, NotChecked=0, Total=992 [2018-04-13 04:41:01,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-04-13 04:41:01,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 105. [2018-04-13 04:41:01,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-04-13 04:41:01,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2018-04-13 04:41:01,396 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 26 [2018-04-13 04:41:01,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:41:01,397 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2018-04-13 04:41:01,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-13 04:41:01,397 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2018-04-13 04:41:01,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-13 04:41:01,398 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:41:01,398 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] [2018-04-13 04:41:01,398 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]=== [2018-04-13 04:41:01,398 INFO L82 PathProgramCache]: Analyzing trace with hash 575850024, now seen corresponding path program 2 times [2018-04-13 04:41:01,398 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:41:01,398 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:41:01,399 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:01,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:41:01,399 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:41:01,408 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:41:01,603 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:41:01,603 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 04:41:01,603 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 04:41:01,603 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 04:41:01,627 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 04:41:01,628 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 04:41:01,632 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 04:41:01,648 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 [2018-04-13 04:41:01,648 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:01,650 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:01,651 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 04:41:01,661 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 [2018-04-13 04:41:01,662 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 [2018-04-13 04:41:01,662 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:01,663 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:01,665 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:01,665 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-13 04:41:01,863 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 [2018-04-13 04:41:01,864 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:01,954 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 [2018-04-13 04:41:01,960 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 [2018-04-13 04:41:01,960 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 04:41:01,963 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:41:01,971 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:41:01,971 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:40, output treesize:38 [2018-04-13 04:41:02,136 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:41:02,136 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-13 04:41:02,136 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2018-04-13 04:41:02,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-13 04:41:02,136 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-13 04:41:02,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2018-04-13 04:41:02,137 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 26 states. [2018-04-13 04:41:03,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:41:03,103 INFO L93 Difference]: Finished difference Result 150 states and 172 transitions. [2018-04-13 04:41:03,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-13 04:41:03,103 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 31 [2018-04-13 04:41:03,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:41:03,105 INFO L225 Difference]: With dead ends: 150 [2018-04-13 04:41:03,105 INFO L226 Difference]: Without dead ends: 150 [2018-04-13 04:41:03,106 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=227, Invalid=1495, Unknown=0, NotChecked=0, Total=1722 [2018-04-13 04:41:03,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-04-13 04:41:03,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 120. [2018-04-13 04:41:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-04-13 04:41:03,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2018-04-13 04:41:03,112 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 31 [2018-04-13 04:41:03,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:41:03,112 INFO L459 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2018-04-13 04:41:03,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-13 04:41:03,112 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2018-04-13 04:41:03,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-13 04:41:03,113 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:41:03,113 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 04:41:03,113 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]=== [2018-04-13 04:41:03,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1948171744, now seen corresponding path program 1 times [2018-04-13 04:41:03,113 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:41:03,114 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:41:03,114 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:03,114 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 04:41:03,114 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:41:03,127 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:41:03,129 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 04:41:03,130 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 04:41:03,130 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 04:41:03,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:41:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:41:03,147 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 04:41:03,174 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:03,177 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 [2018-04-13 04:41:03,179 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 [2018-04-13 04:41:03,180 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,184 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,188 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. [2018-04-13 04:41:03,188 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-13 04:41:03,225 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 [2018-04-13 04:41:03,229 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 [2018-04-13 04:41:03,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:41:03,233 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 04:41:03,233 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-13 04:41:03,233 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-13 04:41:03,234 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-13 04:41:03,234 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=22, Unknown=2, NotChecked=18, Total=56 [2018-04-13 04:41:03,234 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 8 states. [2018-04-13 04:41:03,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:41:03,285 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2018-04-13 04:41:03,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-13 04:41:03,285 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-04-13 04:41:03,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:41:03,286 INFO L225 Difference]: With dead ends: 119 [2018-04-13 04:41:03,286 INFO L226 Difference]: Without dead ends: 89 [2018-04-13 04:41:03,286 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 [2018-04-13 04:41:03,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-04-13 04:41:03,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-04-13 04:41:03,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-04-13 04:41:03,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2018-04-13 04:41:03,288 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 32 [2018-04-13 04:41:03,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:41:03,288 INFO L459 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2018-04-13 04:41:03,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-13 04:41:03,288 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2018-04-13 04:41:03,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-13 04:41:03,289 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:41:03,289 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] [2018-04-13 04:41:03,289 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]=== [2018-04-13 04:41:03,289 INFO L82 PathProgramCache]: Analyzing trace with hash -2133407846, now seen corresponding path program 2 times [2018-04-13 04:41:03,289 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:41:03,289 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:41:03,290 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:03,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:41:03,290 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:41:03,296 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:41:03,301 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 04:41:03,301 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 04:41:03,301 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 04:41:03,302 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 04:41:03,323 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 04:41:03,323 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 04:41:03,327 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 04:41:03,329 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 [2018-04-13 04:41:03,330 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,334 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 [2018-04-13 04:41:03,334 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,337 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,337 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 04:41:03,347 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:03,348 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 [2018-04-13 04:41:03,349 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,356 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:03,357 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:03,357 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 [2018-04-13 04:41:03,358 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,369 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-13 04:41:03,403 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-13 04:41:03,406 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 [2018-04-13 04:41:03,406 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,407 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,412 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,413 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:39, output treesize:32 [2018-04-13 04:41:03,435 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 [2018-04-13 04:41:03,448 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 [2018-04-13 04:41:03,448 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,452 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,457 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. [2018-04-13 04:41:03,457 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:39 [2018-04-13 04:41:03,624 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 [2018-04-13 04:41:03,629 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 [2018-04-13 04:41:03,630 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 04:41:03,636 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 [2018-04-13 04:41:03,636 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:03,639 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:41:03,645 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:41:03,645 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:48, output treesize:30 [2018-04-13 04:41:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:41:03,748 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 04:41:03,748 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-04-13 04:41:03,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-13 04:41:03,749 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-13 04:41:03,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2018-04-13 04:41:03,749 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand 18 states. [2018-04-13 04:41:04,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:41:04,356 INFO L93 Difference]: Finished difference Result 112 states and 123 transitions. [2018-04-13 04:41:04,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-13 04:41:04,356 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 34 [2018-04-13 04:41:04,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:41:04,356 INFO L225 Difference]: With dead ends: 112 [2018-04-13 04:41:04,356 INFO L226 Difference]: Without dead ends: 112 [2018-04-13 04:41:04,357 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2018-04-13 04:41:04,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-04-13 04:41:04,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2018-04-13 04:41:04,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-04-13 04:41:04,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 122 transitions. [2018-04-13 04:41:04,359 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 122 transitions. Word has length 34 [2018-04-13 04:41:04,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:41:04,359 INFO L459 AbstractCegarLoop]: Abstraction has 109 states and 122 transitions. [2018-04-13 04:41:04,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-13 04:41:04,360 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 122 transitions. [2018-04-13 04:41:04,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-13 04:41:04,360 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:41:04,360 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] [2018-04-13 04:41:04,360 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]=== [2018-04-13 04:41:04,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1541599117, now seen corresponding path program 3 times [2018-04-13 04:41:04,360 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:41:04,360 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:41:04,361 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:04,361 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 04:41:04,361 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:41:04,368 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:41:04,470 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-13 04:41:04,471 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 04:41:04,471 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 04:41:04,471 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 04:41:04,498 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-13 04:41:04,498 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 04:41:04,501 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 04:41:04,551 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 [2018-04-13 04:41:04,551 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:04,553 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:04,553 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 04:41:04,558 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 [2018-04-13 04:41:04,560 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 [2018-04-13 04:41:04,560 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:04,561 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:04,562 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:04,562 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-13 04:41:04,637 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 [2018-04-13 04:41:04,642 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 [2018-04-13 04:41:04,642 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 04:41:04,644 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:41:04,648 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:41:04,648 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-13 04:41:04,700 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-13 04:41:04,700 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-13 04:41:04,700 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2018-04-13 04:41:04,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-13 04:41:04,701 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-13 04:41:04,701 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2018-04-13 04:41:04,701 INFO L87 Difference]: Start difference. First operand 109 states and 122 transitions. Second operand 17 states. [2018-04-13 04:41:05,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:41:05,009 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2018-04-13 04:41:05,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-13 04:41:05,009 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 36 [2018-04-13 04:41:05,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:41:05,010 INFO L225 Difference]: With dead ends: 108 [2018-04-13 04:41:05,010 INFO L226 Difference]: Without dead ends: 79 [2018-04-13 04:41:05,010 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 [2018-04-13 04:41:05,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-13 04:41:05,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 43. [2018-04-13 04:41:05,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-04-13 04:41:05,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2018-04-13 04:41:05,011 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 36 [2018-04-13 04:41:05,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:41:05,011 INFO L459 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2018-04-13 04:41:05,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-13 04:41:05,012 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2018-04-13 04:41:05,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-04-13 04:41:05,012 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:41:05,012 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] [2018-04-13 04:41:05,012 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]=== [2018-04-13 04:41:05,012 INFO L82 PathProgramCache]: Analyzing trace with hash -963306331, now seen corresponding path program 3 times [2018-04-13 04:41:05,012 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:41:05,012 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:41:05,013 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:05,013 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 04:41:05,013 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:41:05,022 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:41:05,026 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 04:41:05,026 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 04:41:05,026 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 04:41:05,027 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 04:41:05,067 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-13 04:41:05,068 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 04:41:05,072 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 04:41:05,076 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 [2018-04-13 04:41:05,076 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,081 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 [2018-04-13 04:41:05,081 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,086 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,086 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 04:41:05,100 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:05,101 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 [2018-04-13 04:41:05,102 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,112 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:05,112 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:05,113 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 [2018-04-13 04:41:05,113 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,119 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,119 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-13 04:41:05,142 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 [2018-04-13 04:41:05,144 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 13 treesize of output 12 [2018-04-13 04:41:05,144 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,145 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,151 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2018-04-13 04:41:05,165 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 [2018-04-13 04:41:05,166 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 [2018-04-13 04:41:05,167 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,170 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,175 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,175 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:39, output treesize:35 [2018-04-13 04:41:05,711 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 [2018-04-13 04:41:05,713 INFO L682 Elim1Store]: detected equality via solver [2018-04-13 04:41:05,713 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:05,714 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:05,714 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 [2018-04-13 04:41:05,714 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:05,729 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:05,735 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:05,737 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 [2018-04-13 04:41:05,738 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 04:41:05,748 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:41:05,765 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. [2018-04-13 04:41:05,765 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:84, output treesize:80 [2018-04-13 04:41:06,058 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 04:41:06,058 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 04:41:06,058 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-04-13 04:41:06,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-04-13 04:41:06,059 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-04-13 04:41:06,059 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=650, Unknown=0, NotChecked=0, Total=702 [2018-04-13 04:41:06,059 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 27 states. [2018-04-13 04:41:08,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:41:08,038 INFO L93 Difference]: Finished difference Result 73 states and 79 transitions. [2018-04-13 04:41:08,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-13 04:41:08,039 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 42 [2018-04-13 04:41:08,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:41:08,039 INFO L225 Difference]: With dead ends: 73 [2018-04-13 04:41:08,039 INFO L226 Difference]: Without dead ends: 73 [2018-04-13 04:41:08,040 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 [2018-04-13 04:41:08,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-04-13 04:41:08,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 64. [2018-04-13 04:41:08,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-04-13 04:41:08,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2018-04-13 04:41:08,041 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 42 [2018-04-13 04:41:08,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:41:08,041 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2018-04-13 04:41:08,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-04-13 04:41:08,041 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2018-04-13 04:41:08,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-13 04:41:08,042 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 04:41:08,042 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] [2018-04-13 04:41:08,042 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]=== [2018-04-13 04:41:08,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1942564946, now seen corresponding path program 1 times [2018-04-13 04:41:08,042 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 04:41:08,042 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 04:41:08,043 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:08,043 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 04:41:08,043 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 04:41:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:41:08,050 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 04:41:08,054 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 04:41:08,054 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 04:41:08,054 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 04:41:08,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 04:41:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 04:41:08,074 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 04:41:08,078 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 [2018-04-13 04:41:08,079 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:08,083 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 [2018-04-13 04:41:08,083 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:08,086 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:08,086 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-13 04:41:08,124 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:08,126 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 [2018-04-13 04:41:08,126 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:08,136 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:08,136 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 04:41:08,137 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 [2018-04-13 04:41:08,137 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:08,142 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:08,143 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-13 04:41:08,159 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 [2018-04-13 04:41:08,160 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 [2018-04-13 04:41:08,160 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:08,161 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:08,164 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:08,165 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-13 04:41:08,175 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 [2018-04-13 04:41:08,177 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 [2018-04-13 04:41:08,177 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:08,180 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 04:41:08,184 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. [2018-04-13 04:41:08,184 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-13 04:41:08,273 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 [2018-04-13 04:41:08,275 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 [2018-04-13 04:41:08,276 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 04:41:08,288 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 [2018-04-13 04:41:08,289 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-13 04:41:08,291 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:41:08,296 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-13 04:41:08,296 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:40 [2018-04-13 04:41:08,398 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-04-13 04:41:08,398 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-13 04:41:08,398 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-04-13 04:41:08,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-13 04:41:08,398 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-13 04:41:08,399 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2018-04-13 04:41:08,399 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand 17 states. [2018-04-13 04:41:08,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 04:41:08,879 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2018-04-13 04:41:08,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-13 04:41:08,879 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 47 [2018-04-13 04:41:08,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 04:41:08,880 INFO L225 Difference]: With dead ends: 72 [2018-04-13 04:41:08,880 INFO L226 Difference]: Without dead ends: 0 [2018-04-13 04:41:08,880 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 [2018-04-13 04:41:08,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-13 04:41:08,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-13 04:41:08,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-13 04:41:08,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-13 04:41:08,880 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2018-04-13 04:41:08,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 04:41:08,881 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-13 04:41:08,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-13 04:41:08,881 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-13 04:41:08,881 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-13 04:41:08,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 04:41:08 BoogieIcfgContainer [2018-04-13 04:41:08,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-13 04:41:08,884 INFO L168 Benchmark]: Toolchain (without parser) took 12405.38 ms. Allocated memory was 395.8 MB in the beginning and 821.0 MB in the end (delta: 425.2 MB). Free memory was 331.7 MB in the beginning and 557.4 MB in the end (delta: -225.6 MB). Peak memory consumption was 199.6 MB. Max. memory is 5.3 GB. [2018-04-13 04:41:08,885 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 395.8 MB. Free memory is still 357.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-13 04:41:08,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.90 ms. Allocated memory is still 395.8 MB. Free memory was 331.7 MB in the beginning and 307.9 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. [2018-04-13 04:41:08,885 INFO L168 Benchmark]: Boogie Preprocessor took 41.72 ms. Allocated memory is still 395.8 MB. Free memory was 307.9 MB in the beginning and 305.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-13 04:41:08,886 INFO L168 Benchmark]: RCFGBuilder took 344.49 ms. Allocated memory was 395.8 MB in the beginning and 595.1 MB in the end (delta: 199.2 MB). Free memory was 305.3 MB in the beginning and 530.0 MB in the end (delta: -224.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. [2018-04-13 04:41:08,886 INFO L168 Benchmark]: TraceAbstraction took 11781.92 ms. Allocated memory was 595.1 MB in the beginning and 821.0 MB in the end (delta: 226.0 MB). Free memory was 530.0 MB in the beginning and 557.4 MB in the end (delta: -27.3 MB). Peak memory consumption was 198.6 MB. Max. memory is 5.3 GB. [2018-04-13 04:41:08,887 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 395.8 MB. Free memory is still 357.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 234.90 ms. Allocated memory is still 395.8 MB. Free memory was 331.7 MB in the beginning and 307.9 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 41.72 ms. Allocated memory is still 395.8 MB. Free memory was 307.9 MB in the beginning and 305.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 344.49 ms. Allocated memory was 395.8 MB in the beginning and 595.1 MB in the end (delta: 199.2 MB). Free memory was 305.3 MB in the beginning and 530.0 MB in the end (delta: -224.7 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 11781.92 ms. Allocated memory was 595.1 MB in the beginning and 821.0 MB in the end (delta: 226.0 MB). Free memory was 530.0 MB in the beginning and 557.4 MB in the end (delta: -27.3 MB). Peak memory consumption was 198.6 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, 11.7s OverallTime, 18 OverallIterations, 4 TraceHistogramMax, 6.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 505 SDtfs, 1016 SDslu, 3035 SDs, 0 SdLazy, 3565 SolverSat, 222 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 549 GetRequests, 193 SyntacticMatches, 11 SemanticMatches, 345 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1403 ImplicationChecksByTransitivity, 7.3s 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, 0.3s SatisfiabilityAnalysisTime, 4.4s 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-0-2018-04-13_04-41-08-892.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-0-2018-04-13_04-41-08-892.csv Received shutdown request...