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_Array.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 12:51:35,455 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 12:51:35,456 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 12:51:35,469 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 12:51:35,470 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 12:51:35,470 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 12:51:35,471 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 12:51:35,473 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 12:51:35,474 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 12:51:35,475 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 12:51:35,476 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 12:51:35,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 12:51:35,477 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 12:51:35,479 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 12:51:35,479 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 12:51:35,481 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 12:51:35,483 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 12:51:35,484 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 12:51:35,485 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 12:51:35,486 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 12:51:35,488 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 12:51:35,493 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 12:51:35,493 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 12:51:35,493 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_Array.epf [2018-04-11 12:51:35,514 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 12:51:35,515 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 12:51:35,516 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 12:51:35,516 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 12:51:35,516 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 12:51:35,516 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 12:51:35,516 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 12:51:35,517 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 12:51:35,517 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 12:51:35,517 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 12:51:35,517 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 12:51:35,517 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 12:51:35,517 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 12:51:35,517 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 12:51:35,517 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 12:51:35,517 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 12:51:35,518 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 12:51:35,518 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 12:51:35,518 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 12:51:35,518 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 12:51:35,518 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 12:51:35,518 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 12:51:35,544 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 12:51:35,552 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 12:51:35,555 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 12:51:35,556 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 12:51:35,556 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 12:51:35,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,842 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGb307d612e [2018-04-11 12:51:35,980 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 12:51:35,980 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 12:51:35,980 INFO L168 CDTParser]: Scanning cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,987 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 12:51:35,988 INFO L215 ultiparseSymbolTable]: [2018-04-11 12:51:35,988 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 12:51:35,988 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,988 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,988 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,988 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ ('') in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,988 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 12:51:35,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,988 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__wchar_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__nlink_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fd_mask in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____useconds_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__id_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_int in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,989 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__dev_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____clockid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____clock_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__clockid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int8_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int16_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__quad_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,990 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____daddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__int64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__register_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_quad_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____pid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____int64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ldiv_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__loff_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uint8_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____key_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,991 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ushort in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____ssize_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__int32_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____off_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ino_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____quad_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____ino64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____gid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,992 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____timer_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__timer_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int32_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__key_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____nlink_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__sigset_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uint64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsword_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fd_mask in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__uint in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,993 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ssize_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____id_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__lldiv_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fd_set in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uint32_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____blksize_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__blksize_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____dev_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,994 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____qaddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__uid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__int16_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____rlim64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__time_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__div_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____int32_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____rlim_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,995 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____time_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____off64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____suseconds_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__int8_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_char in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_quad_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,996 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____uint16_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____fsid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____socklen_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__daddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_int64_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__clock_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____mode_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____int16_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__off_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_long in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,997 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_char in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____int8_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____loff_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____intptr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__size_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__fsid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__caddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____sigset_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____u_short in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__mode_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,998 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__suseconds_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____ino_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_short in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____caddr_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__u_long in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__ulong in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:35,999 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i__gid_t in cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:36,013 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGb307d612e [2018-04-11 12:51:36,016 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 12:51:36,016 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 12:51:36,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 12:51:36,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 12:51:36,021 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 12:51:36,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 12:51:36" (1/1) ... [2018-04-11 12:51:36,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29a2530d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 12:51:36, skipping insertion in model container [2018-04-11 12:51:36,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 12:51:36" (1/1) ... [2018-04-11 12:51:36,035 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 12:51:36,056 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 12:51:36,179 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 12:51:36,216 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 12:51:36,222 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 12:51:36,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 12:51:36 WrapperNode [2018-04-11 12:51:36,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 12:51:36,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 12:51:36,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 12:51:36,260 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 12:51:36,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 12:51:36" (1/1) ... [2018-04-11 12:51:36,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 12:51:36" (1/1) ... [2018-04-11 12:51:36,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 12:51:36" (1/1) ... [2018-04-11 12:51:36,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 12:51:36" (1/1) ... [2018-04-11 12:51:36,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 12:51:36" (1/1) ... [2018-04-11 12:51:36,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 12:51:36" (1/1) ... [2018-04-11 12:51:36,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 12:51:36" (1/1) ... [2018-04-11 12:51:36,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 12:51:36,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 12:51:36,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 12:51:36,297 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 12:51:36,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 12:51:36" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 12:51:36,384 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 12:51:36,385 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 12:51:36,385 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 12:51:36,385 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 12:51:36,385 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrspn [2018-04-11 12:51:36,385 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 12:51:36,385 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 12:51:36,385 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 12:51:36,385 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 12:51:36,385 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 12:51:36,385 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 12:51:36,385 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 12:51:36,386 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 12:51:36,386 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 12:51:36,386 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 12:51:36,386 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 12:51:36,386 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 12:51:36,386 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 12:51:36,386 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 12:51:36,386 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 12:51:36,386 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 12:51:36,386 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 12:51:36,387 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 12:51:36,387 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 12:51:36,387 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 12:51:36,387 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 12:51:36,387 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 12:51:36,387 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 12:51:36,387 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 12:51:36,387 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 12:51:36,387 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 12:51:36,387 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 12:51:36,387 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 12:51:36,388 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 12:51:36,388 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 12:51:36,388 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 12:51:36,388 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 12:51:36,388 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 12:51:36,388 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 12:51:36,388 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 12:51:36,388 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 12:51:36,388 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 12:51:36,388 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 12:51:36,389 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 12:51:36,389 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 12:51:36,389 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 12:51:36,389 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 12:51:36,389 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 12:51:36,389 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 12:51:36,389 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 12:51:36,389 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 12:51:36,389 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 12:51:36,390 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 12:51:36,390 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 12:51:36,390 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 12:51:36,390 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 12:51:36,390 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 12:51:36,390 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 12:51:36,390 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 12:51:36,390 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 12:51:36,390 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 12:51:36,390 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 12:51:36,391 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 12:51:36,391 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 12:51:36,391 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 12:51:36,391 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 12:51:36,391 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 12:51:36,391 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 12:51:36,391 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 12:51:36,391 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 12:51:36,391 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 12:51:36,391 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 12:51:36,391 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 12:51:36,391 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 12:51:36,392 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 12:51:36,393 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 12:51:36,393 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 12:51:36,393 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 12:51:36,393 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 12:51:36,393 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 12:51:36,393 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 12:51:36,393 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 12:51:36,393 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 12:51:36,393 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 12:51:36,393 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 12:51:36,393 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 12:51:36,394 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 12:51:36,394 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 12:51:36,394 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 12:51:36,394 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 12:51:36,394 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 12:51:36,394 INFO L128 BoogieDeclarations]: Found specification of procedure cstrspn [2018-04-11 12:51:36,394 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 12:51:36,394 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 12:51:36,394 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 12:51:36,394 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 12:51:36,394 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 12:51:36,395 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 12:51:36,395 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 12:51:36,395 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 12:51:36,680 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 12:51:36,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 12:51:36 BoogieIcfgContainer [2018-04-11 12:51:36,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 12:51:36,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 12:51:36,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 12:51:36,683 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 12:51:36,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 12:51:36" (1/3) ... [2018-04-11 12:51:36,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742109e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 12:51:36, skipping insertion in model container [2018-04-11 12:51:36,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 12:51:36" (2/3) ... [2018-04-11 12:51:36,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@742109e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 12:51:36, skipping insertion in model container [2018-04-11 12:51:36,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 12:51:36" (3/3) ... [2018-04-11 12:51:36,685 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-04-11 12:51:36,691 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-04-11 12:51:36,697 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 15 error locations. [2018-04-11 12:51:36,731 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 12:51:36,731 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 12:51:36,732 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 12:51:36,732 INFO L371 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-04-11 12:51:36,732 INFO L372 AbstractCegarLoop]: Backedges is CANONICAL [2018-04-11 12:51:36,732 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 12:51:36,732 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 12:51:36,732 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 12:51:36,732 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 12:51:36,733 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 12:51:36,743 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-04-11 12:51:36,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 12:51:36,749 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:36,749 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:36,749 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:36,752 INFO L82 PathProgramCache]: Analyzing trace with hash 2018700559, now seen corresponding path program 1 times [2018-04-11 12:51:36,783 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:36,820 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:36,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:36,897 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:36,897 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 12:51:36,898 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:36,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:36,899 INFO L182 omatonBuilderFactory]: Interpolants [64#(= 1 (select |#valid| main_~nondetString1~0.base)), 61#true, 62#false, 63#(= 1 (select |#valid| |main_#t~malloc12.base|))] [2018-04-11 12:51:36,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:36,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 12:51:36,908 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 12:51:36,908 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 12:51:36,909 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 4 states. [2018-04-11 12:51:36,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:36,971 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-04-11 12:51:36,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 12:51:36,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-04-11 12:51:36,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:36,978 INFO L225 Difference]: With dead ends: 57 [2018-04-11 12:51:36,978 INFO L226 Difference]: Without dead ends: 54 [2018-04-11 12:51:36,979 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 12:51:36,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-04-11 12:51:36,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-04-11 12:51:37,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-04-11 12:51:37,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-04-11 12:51:37,002 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 13 [2018-04-11 12:51:37,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:37,003 INFO L459 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-04-11 12:51:37,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 12:51:37,003 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-04-11 12:51:37,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-11 12:51:37,003 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:37,003 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:37,003 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:37,004 INFO L82 PathProgramCache]: Analyzing trace with hash 2018700560, now seen corresponding path program 1 times [2018-04-11 12:51:37,004 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:37,020 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,083 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:37,083 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 12:51:37,083 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,083 INFO L182 omatonBuilderFactory]: Interpolants [178#true, 179#false, 180#(<= 1 main_~length1~0), 181#(and (= main_~length1~0 (select |#length| |main_#t~malloc12.base|)) (= (select |#valid| |main_#t~malloc12.base|) 1) (= 0 |main_#t~malloc12.offset|) (<= 1 main_~length1~0)), 182#(and (= main_~length1~0 (select |#length| main_~nondetString1~0.base)) (= (select |#valid| main_~nondetString1~0.base) 1) (<= 1 main_~length1~0) (= main_~nondetString1~0.offset 0)), 183#(and (= main_~length1~0 (select |#length| main_~nondetString1~0.base)) (<= 1 main_~length1~0) (= main_~nondetString1~0.offset 0))] [2018-04-11 12:51:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 12:51:37,085 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 12:51:37,085 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-11 12:51:37,085 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 6 states. [2018-04-11 12:51:37,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:37,139 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2018-04-11 12:51:37,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 12:51:37,139 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-11 12:51:37,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:37,140 INFO L225 Difference]: With dead ends: 53 [2018-04-11 12:51:37,140 INFO L226 Difference]: Without dead ends: 53 [2018-04-11 12:51:37,141 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-11 12:51:37,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-11 12:51:37,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-04-11 12:51:37,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-11 12:51:37,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2018-04-11 12:51:37,146 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 13 [2018-04-11 12:51:37,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:37,146 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2018-04-11 12:51:37,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 12:51:37,146 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2018-04-11 12:51:37,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 12:51:37,147 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:37,147 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:37,147 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:37,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1844792117, now seen corresponding path program 1 times [2018-04-11 12:51:37,148 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:37,160 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,180 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:37,180 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 12:51:37,180 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:37,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,181 INFO L182 omatonBuilderFactory]: Interpolants [292#true, 293#false, 294#(= 1 (select |#valid| |main_#t~malloc13.base|)), 295#(= 1 (select |#valid| main_~nondetString2~0.base))] [2018-04-11 12:51:37,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 12:51:37,181 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 12:51:37,181 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 12:51:37,181 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand 4 states. [2018-04-11 12:51:37,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:37,238 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2018-04-11 12:51:37,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 12:51:37,239 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-11 12:51:37,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:37,240 INFO L225 Difference]: With dead ends: 52 [2018-04-11 12:51:37,240 INFO L226 Difference]: Without dead ends: 52 [2018-04-11 12:51:37,240 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 12:51:37,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-04-11 12:51:37,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-04-11 12:51:37,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-11 12:51:37,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2018-04-11 12:51:37,244 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 14 [2018-04-11 12:51:37,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:37,245 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2018-04-11 12:51:37,245 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 12:51:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2018-04-11 12:51:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 12:51:37,245 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:37,245 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:37,246 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:37,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1844792116, now seen corresponding path program 1 times [2018-04-11 12:51:37,246 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:37,256 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:37,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,300 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:37,300 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 12:51:37,300 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:37,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,300 INFO L182 omatonBuilderFactory]: Interpolants [402#true, 403#false, 404#(<= 1 main_~length2~0), 405#(and (= main_~length2~0 (select |#length| |main_#t~malloc13.base|)) (<= 1 main_~length2~0) (= 0 |main_#t~malloc13.offset|)), 406#(and (= main_~nondetString2~0.offset 0) (<= 1 main_~length2~0) (= main_~length2~0 (select |#length| main_~nondetString2~0.base)))] [2018-04-11 12:51:37,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 12:51:37,301 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 12:51:37,301 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 12:51:37,301 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 5 states. [2018-04-11 12:51:37,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:37,329 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2018-04-11 12:51:37,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 12:51:37,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 12:51:37,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:37,330 INFO L225 Difference]: With dead ends: 51 [2018-04-11 12:51:37,330 INFO L226 Difference]: Without dead ends: 51 [2018-04-11 12:51:37,330 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-04-11 12:51:37,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-11 12:51:37,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-11 12:51:37,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-11 12:51:37,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2018-04-11 12:51:37,334 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 14 [2018-04-11 12:51:37,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:37,334 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2018-04-11 12:51:37,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 12:51:37,335 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2018-04-11 12:51:37,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 12:51:37,335 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:37,335 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:37,335 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:37,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1893487725, now seen corresponding path program 1 times [2018-04-11 12:51:37,336 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:37,349 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:37,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,374 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:37,374 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 12:51:37,375 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,375 INFO L182 omatonBuilderFactory]: Interpolants [512#false, 513#(= 1 (select |#valid| main_~nondetString1~0.base)), 514#(= 1 (select |#valid| |cstrspn_#in~s1.base|)), 515#(= 1 (select |#valid| cstrspn_~sc1~0.base)), 511#true] [2018-04-11 12:51:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 12:51:37,375 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 12:51:37,375 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 12:51:37,375 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand 5 states. [2018-04-11 12:51:37,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:37,418 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-04-11 12:51:37,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 12:51:37,418 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-04-11 12:51:37,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:37,419 INFO L225 Difference]: With dead ends: 49 [2018-04-11 12:51:37,419 INFO L226 Difference]: Without dead ends: 49 [2018-04-11 12:51:37,419 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 12:51:37,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-04-11 12:51:37,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-04-11 12:51:37,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 12:51:37,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2018-04-11 12:51:37,422 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 18 [2018-04-11 12:51:37,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:37,422 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-04-11 12:51:37,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 12:51:37,423 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2018-04-11 12:51:37,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 12:51:37,423 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:37,423 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:37,423 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:37,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1893487726, now seen corresponding path program 1 times [2018-04-11 12:51:37,424 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:37,434 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:37,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,500 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:37,500 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 12:51:37,500 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:37,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,501 INFO L182 omatonBuilderFactory]: Interpolants [616#true, 617#false, 618#(<= 1 main_~length1~0), 619#(and (= 0 |main_#t~malloc12.offset|) (<= 1 main_~length1~0)), 620#(and (<= 1 main_~length1~0) (= main_~nondetString1~0.offset 0)), 621#(and (<= (+ main_~nondetString1~0.offset 1) (select |#length| main_~nondetString1~0.base)) (= main_~nondetString1~0.offset 0)), 622#(and (<= 1 (select |#length| |cstrspn_#in~s1.base|)) (= 0 |cstrspn_#in~s1.offset|)), 623#(and (= cstrspn_~sc1~0.offset 0) (<= 1 (select |#length| cstrspn_~sc1~0.base)))] [2018-04-11 12:51:37,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 12:51:37,501 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 12:51:37,501 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-04-11 12:51:37,501 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 8 states. [2018-04-11 12:51:37,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:37,591 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2018-04-11 12:51:37,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 12:51:37,591 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-04-11 12:51:37,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:37,593 INFO L225 Difference]: With dead ends: 73 [2018-04-11 12:51:37,593 INFO L226 Difference]: Without dead ends: 73 [2018-04-11 12:51:37,593 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-04-11 12:51:37,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-04-11 12:51:37,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 53. [2018-04-11 12:51:37,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-04-11 12:51:37,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2018-04-11 12:51:37,595 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 18 [2018-04-11 12:51:37,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:37,596 INFO L459 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2018-04-11 12:51:37,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 12:51:37,596 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2018-04-11 12:51:37,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 12:51:37,596 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:37,596 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:37,596 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:37,596 INFO L82 PathProgramCache]: Analyzing trace with hash -894404631, now seen corresponding path program 1 times [2018-04-11 12:51:37,597 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:37,603 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:37,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,630 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:37,630 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 12:51:37,630 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:37,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,631 INFO L182 omatonBuilderFactory]: Interpolants [758#true, 759#false, 760#(= 1 (select |#valid| main_~nondetString2~0.base)), 761#(= 1 (select |#valid| |cstrspn_#in~s2.base|)), 762#(= 1 (select |#valid| cstrspn_~s2.base)), 763#(= 1 (select |#valid| cstrspn_~s~0.base))] [2018-04-11 12:51:37,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 12:51:37,631 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 12:51:37,631 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 12:51:37,631 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand 6 states. [2018-04-11 12:51:37,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:37,678 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2018-04-11 12:51:37,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 12:51:37,678 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-04-11 12:51:37,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:37,679 INFO L225 Difference]: With dead ends: 53 [2018-04-11 12:51:37,679 INFO L226 Difference]: Without dead ends: 53 [2018-04-11 12:51:37,679 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-11 12:51:37,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-11 12:51:37,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2018-04-11 12:51:37,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 12:51:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-04-11 12:51:37,682 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 23 [2018-04-11 12:51:37,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:37,682 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-04-11 12:51:37,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 12:51:37,683 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-04-11 12:51:37,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 12:51:37,683 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:37,683 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:37,683 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:37,683 INFO L82 PathProgramCache]: Analyzing trace with hash -894404630, now seen corresponding path program 1 times [2018-04-11 12:51:37,684 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:37,694 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,781 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:37,781 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-11 12:51:37,781 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:37,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,781 INFO L182 omatonBuilderFactory]: Interpolants [871#true, 872#false, 873#(<= 1 main_~length2~0), 874#(and (= main_~length2~0 (select |#length| |main_#t~malloc13.base|)) (<= 1 main_~length2~0) (= 0 |main_#t~malloc13.offset|)), 875#(and (= 0 main_~nondetString2~0.offset) (<= 1 main_~length2~0) (= main_~length2~0 (select |#length| main_~nondetString2~0.base))), 876#(and (= 0 main_~nondetString2~0.offset) (<= 1 (select |#length| main_~nondetString2~0.base))), 877#(and (<= 1 (select |#length| |cstrspn_#in~s2.base|)) (= 0 |cstrspn_#in~s2.offset|)), 878#(and (= 0 cstrspn_~s2.offset) (<= 1 (select |#length| cstrspn_~s2.base))), 879#(and (<= 1 (select |#length| cstrspn_~s~0.base)) (= cstrspn_~s~0.offset 0))] [2018-04-11 12:51:37,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:37,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 12:51:37,781 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 12:51:37,781 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-04-11 12:51:37,782 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 9 states. [2018-04-11 12:51:37,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:37,907 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2018-04-11 12:51:37,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 12:51:37,907 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-04-11 12:51:37,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:37,908 INFO L225 Difference]: With dead ends: 67 [2018-04-11 12:51:37,908 INFO L226 Difference]: Without dead ends: 67 [2018-04-11 12:51:37,908 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-04-11 12:51:37,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-04-11 12:51:37,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2018-04-11 12:51:37,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-04-11 12:51:37,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2018-04-11 12:51:37,912 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 23 [2018-04-11 12:51:37,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:37,912 INFO L459 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2018-04-11 12:51:37,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 12:51:37,912 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2018-04-11 12:51:37,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 12:51:37,913 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:37,913 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:37,913 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:37,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1986095611, now seen corresponding path program 1 times [2018-04-11 12:51:37,913 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:37,941 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,004 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:38,004 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 12:51:38,004 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,005 INFO L182 omatonBuilderFactory]: Interpolants [1011#true, 1012#false, 1013#(= |#valid| |old(#valid)|), 1014#(and (= (select |#valid| |main_#t~malloc12.base|) 1) (= (store |#valid| |main_#t~malloc12.base| 0) |old(#valid)|)), 1015#(and (not (= |main_#t~malloc12.base| |main_#t~malloc13.base|)) (= (store (store |#valid| |main_#t~malloc13.base| 0) |main_#t~malloc12.base| 0) |old(#valid)|)), 1016#(= |old(#valid)| (store |#valid| |main_#t~malloc13.base| 0))] [2018-04-11 12:51:38,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,005 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 12:51:38,005 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 12:51:38,005 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-11 12:51:38,005 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand 6 states. [2018-04-11 12:51:38,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:38,089 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-04-11 12:51:38,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 12:51:38,089 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-04-11 12:51:38,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:38,090 INFO L225 Difference]: With dead ends: 57 [2018-04-11 12:51:38,090 INFO L226 Difference]: Without dead ends: 48 [2018-04-11 12:51:38,090 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-04-11 12:51:38,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-04-11 12:51:38,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-04-11 12:51:38,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-04-11 12:51:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2018-04-11 12:51:38,093 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 28 [2018-04-11 12:51:38,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:38,093 INFO L459 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2018-04-11 12:51:38,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 12:51:38,093 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2018-04-11 12:51:38,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 12:51:38,094 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:38,094 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:38,094 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:38,094 INFO L82 PathProgramCache]: Analyzing trace with hash 55851358, now seen corresponding path program 1 times [2018-04-11 12:51:38,095 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:38,104 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:38,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,115 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:38,115 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 12:51:38,115 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:38,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,116 INFO L182 omatonBuilderFactory]: Interpolants [1126#true, 1127#false, 1128#(not |cstrspn_#t~short7|)] [2018-04-11 12:51:38,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,116 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 12:51:38,116 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 12:51:38,116 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 12:51:38,116 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 3 states. [2018-04-11 12:51:38,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:38,120 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2018-04-11 12:51:38,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 12:51:38,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-04-11 12:51:38,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:38,121 INFO L225 Difference]: With dead ends: 50 [2018-04-11 12:51:38,121 INFO L226 Difference]: Without dead ends: 50 [2018-04-11 12:51:38,122 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 12:51:38,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-11 12:51:38,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-11 12:51:38,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 12:51:38,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2018-04-11 12:51:38,125 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 28 [2018-04-11 12:51:38,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:38,125 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2018-04-11 12:51:38,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 12:51:38,126 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2018-04-11 12:51:38,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 12:51:38,126 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:38,126 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:38,126 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:38,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1951988481, now seen corresponding path program 1 times [2018-04-11 12:51:38,127 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:38,144 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:38,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 12:51:38,255 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:38,255 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-11 12:51:38,255 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:38,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,255 INFO L182 omatonBuilderFactory]: Interpolants [1232#(and (= (select |#valid| |main_#t~malloc12.base|) 1) (= 0 |main_#t~malloc12.offset|) (<= 1 main_~length1~0) (<= main_~length1~0 1)), 1233#(and (= (select |#valid| main_~nondetString1~0.base) 1) (<= 1 main_~length1~0) (<= main_~length1~0 1) (= main_~nondetString1~0.offset 0)), 1234#(and (<= 1 main_~length1~0) (<= main_~length1~0 1) (not (= main_~nondetString1~0.base |main_#t~malloc13.base|)) (= main_~nondetString1~0.offset 0)), 1235#(and (<= 1 main_~length1~0) (not (= main_~nondetString1~0.base main_~nondetString2~0.base)) (<= main_~length1~0 1) (= main_~nondetString1~0.offset 0)), 1236#(and (= 0 (select (select |#memory_int| main_~nondetString1~0.base) main_~nondetString1~0.offset)) (not (= main_~nondetString1~0.base main_~nondetString2~0.base)) (= main_~nondetString1~0.offset 0)), 1237#(= 0 (select (select |#memory_int| |cstrspn_#in~s1.base|) |cstrspn_#in~s1.offset|)), 1238#(= 0 (select (select |#memory_int| cstrspn_~sc1~0.base) cstrspn_~sc1~0.offset)), 1239#(= |cstrspn_#t~mem3| 0), 1229#true, 1230#false, 1231#(and (<= 1 main_~length1~0) (<= main_~length1~0 1))] [2018-04-11 12:51:38,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 12:51:38,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 12:51:38,256 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 12:51:38,256 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-04-11 12:51:38,256 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand 11 states. [2018-04-11 12:51:38,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:38,392 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2018-04-11 12:51:38,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 12:51:38,395 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-04-11 12:51:38,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:38,396 INFO L225 Difference]: With dead ends: 62 [2018-04-11 12:51:38,396 INFO L226 Difference]: Without dead ends: 50 [2018-04-11 12:51:38,396 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-04-11 12:51:38,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-11 12:51:38,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-04-11 12:51:38,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 12:51:38,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-04-11 12:51:38,401 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 30 [2018-04-11 12:51:38,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:38,401 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-04-11 12:51:38,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 12:51:38,402 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-04-11 12:51:38,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 12:51:38,402 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:38,402 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:38,402 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:38,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1817974975, now seen corresponding path program 1 times [2018-04-11 12:51:38,403 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:38,416 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:38,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,532 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:38,532 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-04-11 12:51:38,532 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,533 INFO L182 omatonBuilderFactory]: Interpolants [1364#true, 1365#false, 1366#(and (<= main_~length2~0 1) (<= 1 main_~length2~0)), 1367#(and (<= main_~length2~0 1) (<= 1 main_~length2~0) (= 0 |main_#t~malloc13.offset|)), 1368#(and (= 0 main_~nondetString2~0.offset) (<= 1 main_~length2~0) (<= (+ main_~nondetString2~0.offset main_~length2~0) 1)), 1369#(and (= main_~nondetString2~0.offset 0) (= 0 (select (select |#memory_int| main_~nondetString2~0.base) main_~nondetString2~0.offset))), 1370#(= 0 (select (select |#memory_int| |cstrspn_#in~s2.base|) |cstrspn_#in~s2.offset|)), 1371#(= 0 (select (select |#memory_int| cstrspn_~s2.base) cstrspn_~s2.offset)), 1372#(= 0 (select (select |#memory_int| cstrspn_~s~0.base) cstrspn_~s~0.offset)), 1373#(= |cstrspn_#t~mem5| 0), 1374#(not |cstrspn_#t~short7|)] [2018-04-11 12:51:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-11 12:51:38,533 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-11 12:51:38,533 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-04-11 12:51:38,534 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 11 states. [2018-04-11 12:51:38,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:38,638 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2018-04-11 12:51:38,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 12:51:38,639 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2018-04-11 12:51:38,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:38,639 INFO L225 Difference]: With dead ends: 77 [2018-04-11 12:51:38,639 INFO L226 Difference]: Without dead ends: 77 [2018-04-11 12:51:38,639 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-04-11 12:51:38,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-04-11 12:51:38,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2018-04-11 12:51:38,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-11 12:51:38,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2018-04-11 12:51:38,642 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 30 [2018-04-11 12:51:38,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:38,642 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2018-04-11 12:51:38,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-11 12:51:38,643 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2018-04-11 12:51:38,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-04-11 12:51:38,643 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:38,643 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:38,644 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:38,644 INFO L82 PathProgramCache]: Analyzing trace with hash 12536641, now seen corresponding path program 1 times [2018-04-11 12:51:38,644 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:38,654 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:38,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,847 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 12:51:38,847 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 12:51:38,847 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:38,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,847 INFO L182 omatonBuilderFactory]: Interpolants [1539#true, 1540#false, 1541#(<= 1 main_~length2~0), 1542#(and (= main_~length2~0 (select |#length| |main_#t~malloc13.base|)) (<= 1 main_~length2~0) (= 0 |main_#t~malloc13.offset|)), 1543#(and (= 0 main_~nondetString2~0.offset) (<= 1 main_~length2~0) (or (= (+ main_~nondetString2~0.offset main_~length2~0) 1) (= main_~length2~0 (select |#length| main_~nondetString2~0.base)))), 1544#(and (= 0 main_~nondetString2~0.offset) (or (= 0 (select (select |#memory_int| main_~nondetString2~0.base) main_~nondetString2~0.offset)) (<= 2 (+ main_~nondetString2~0.offset (select |#length| main_~nondetString2~0.base))))), 1545#(and (or (<= 2 (select |#length| |cstrspn_#in~s2.base|)) (= 0 (select (select |#memory_int| |cstrspn_#in~s2.base|) |cstrspn_#in~s2.offset|))) (= 0 |cstrspn_#in~s2.offset|)), 1546#(and (= 0 cstrspn_~s2.offset) (or (<= 2 (select |#length| cstrspn_~s2.base)) (= 0 (select (select |#memory_int| cstrspn_~s2.base) cstrspn_~s2.offset)))), 1547#(and (or (<= 2 (select |#length| cstrspn_~s~0.base)) (= 0 (select (select |#memory_int| cstrspn_~s~0.base) cstrspn_~s~0.offset))) (= cstrspn_~s~0.offset 0)), 1548#(and (= cstrspn_~s~0.offset 0) (or (<= 2 (select |#length| cstrspn_~s~0.base)) (= |cstrspn_#t~mem5| 0))), 1549#(and (= cstrspn_~s~0.offset 0) (or (<= 2 (select |#length| cstrspn_~s~0.base)) (not |cstrspn_#t~short7|))), 1550#(and (<= 2 (select |#length| cstrspn_~s~0.base)) (= cstrspn_~s~0.offset 0)), 1551#(and (<= (+ cstrspn_~s~0.offset 1) (select |#length| cstrspn_~s~0.base)) (<= 1 cstrspn_~s~0.offset))] [2018-04-11 12:51:38,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:38,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 12:51:38,847 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 12:51:38,847 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-04-11 12:51:38,848 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand 13 states. [2018-04-11 12:51:39,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:39,057 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2018-04-11 12:51:39,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 12:51:39,058 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2018-04-11 12:51:39,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:39,059 INFO L225 Difference]: With dead ends: 103 [2018-04-11 12:51:39,059 INFO L226 Difference]: Without dead ends: 103 [2018-04-11 12:51:39,059 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2018-04-11 12:51:39,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-04-11 12:51:39,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 82. [2018-04-11 12:51:39,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-11 12:51:39,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2018-04-11 12:51:39,062 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 30 [2018-04-11 12:51:39,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:39,063 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2018-04-11 12:51:39,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 12:51:39,063 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2018-04-11 12:51:39,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 12:51:39,063 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:39,064 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:39,064 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:39,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1821776862, now seen corresponding path program 1 times [2018-04-11 12:51:39,065 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:39,071 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:39,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:39,123 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 12:51:39,123 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-11 12:51:39,123 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:39,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:39,124 INFO L182 omatonBuilderFactory]: Interpolants [1760#(or (not (= cstrspn_~c~0 (select (select |#memory_int| cstrspn_~s~0.base) cstrspn_~s~0.offset))) |cstrspn_#t~short7|), 1761#(not (= cstrspn_~c~0 (select (select |#memory_int| cstrspn_~s~0.base) cstrspn_~s~0.offset))), 1762#(not (= cstrspn_~c~0 |cstrspn_#t~mem9|)), 1753#true, 1754#false, 1755#(= |cstrspn_#t~mem3| (select (select |#memory_int| cstrspn_~sc1~0.base) cstrspn_~sc1~0.offset)), 1756#(not (= (select (select |#memory_int| cstrspn_~sc1~0.base) cstrspn_~sc1~0.offset) 0)), 1757#(not (= |cstrspn_#t~mem4| 0)), 1758#(not (= cstrspn_~c~0 0)), 1759#(and (not (= cstrspn_~c~0 0)) (= |cstrspn_#t~mem5| (select (select |#memory_int| cstrspn_~s~0.base) cstrspn_~s~0.offset)))] [2018-04-11 12:51:39,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:39,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 12:51:39,124 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 12:51:39,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 12:51:39,124 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 10 states. [2018-04-11 12:51:39,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:39,227 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2018-04-11 12:51:39,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 12:51:39,228 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2018-04-11 12:51:39,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:39,228 INFO L225 Difference]: With dead ends: 82 [2018-04-11 12:51:39,228 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 12:51:39,228 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-04-11 12:51:39,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 12:51:39,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2018-04-11 12:51:39,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-04-11 12:51:39,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2018-04-11 12:51:39,230 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 31 [2018-04-11 12:51:39,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:39,230 INFO L459 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2018-04-11 12:51:39,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 12:51:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2018-04-11 12:51:39,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-11 12:51:39,231 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:39,231 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:39,231 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:39,231 INFO L82 PathProgramCache]: Analyzing trace with hash -217317095, now seen corresponding path program 1 times [2018-04-11 12:51:39,231 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:39,242 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:39,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:39,401 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 12:51:39,401 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 12:51:39,401 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:39,402 INFO L182 omatonBuilderFactory]: Interpolants [1920#true, 1921#false, 1922#(<= 1 main_~length1~0), 1923#(and (= (select |#valid| |main_#t~malloc12.base|) 1) (= 0 |main_#t~malloc12.offset|) (<= 1 main_~length1~0)), 1924#(and (or (not (= (+ main_~nondetString1~0.offset main_~length1~0) 1)) (= (select |#valid| main_~nondetString1~0.base) 1)) (<= 1 main_~length1~0) (= main_~nondetString1~0.offset 0)), 1925#(and (<= 1 main_~length1~0) (or (not (= (+ main_~nondetString1~0.offset main_~length1~0) 1)) (not (= main_~nondetString1~0.base |main_#t~malloc13.base|))) (= main_~nondetString1~0.offset 0)), 1926#(and (= 0 main_~nondetString1~0.offset) (or (not (= (+ main_~nondetString1~0.offset main_~length1~0) 1)) (not (= main_~nondetString1~0.base main_~nondetString2~0.base))) (<= 1 main_~length1~0)), 1927#(and (= 0 main_~nondetString1~0.offset) (or (and (= 0 (select (select |#memory_int| main_~nondetString1~0.base) main_~nondetString1~0.offset)) (not (= main_~nondetString1~0.base main_~nondetString2~0.base))) (<= 2 (select |#length| main_~nondetString1~0.base)))), 1928#(and (or (= 0 (select (select |#memory_int| |cstrspn_#in~s1.base|) |cstrspn_#in~s1.offset|)) (<= 2 (select |#length| |cstrspn_#in~s1.base|))) (= 0 |cstrspn_#in~s1.offset|)), 1929#(and (= cstrspn_~sc1~0.offset 0) (or (= 0 (select (select |#memory_int| cstrspn_~sc1~0.base) cstrspn_~sc1~0.offset)) (<= 2 (select |#length| cstrspn_~sc1~0.base)))), 1930#(and (= cstrspn_~sc1~0.offset 0) (or (<= 2 (select |#length| cstrspn_~sc1~0.base)) (= |cstrspn_#t~mem3| 0))), 1931#(and (= cstrspn_~sc1~0.offset 0) (<= 2 (select |#length| cstrspn_~sc1~0.base))), 1932#(and (<= 1 cstrspn_~sc1~0.offset) (<= (+ cstrspn_~sc1~0.offset 1) (select |#length| cstrspn_~sc1~0.base)))] [2018-04-11 12:51:39,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:39,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 12:51:39,402 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 12:51:39,402 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-04-11 12:51:39,402 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 13 states. [2018-04-11 12:51:39,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:39,598 INFO L93 Difference]: Finished difference Result 123 states and 135 transitions. [2018-04-11 12:51:39,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 12:51:39,598 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 33 [2018-04-11 12:51:39,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:39,599 INFO L225 Difference]: With dead ends: 123 [2018-04-11 12:51:39,599 INFO L226 Difference]: Without dead ends: 123 [2018-04-11 12:51:39,599 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2018-04-11 12:51:39,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-04-11 12:51:39,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 87. [2018-04-11 12:51:39,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-04-11 12:51:39,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 98 transitions. [2018-04-11 12:51:39,601 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 98 transitions. Word has length 33 [2018-04-11 12:51:39,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:39,602 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 98 transitions. [2018-04-11 12:51:39,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 12:51:39,602 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 98 transitions. [2018-04-11 12:51:39,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-11 12:51:39,602 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:39,602 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:39,602 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:39,602 INFO L82 PathProgramCache]: Analyzing trace with hash -670234678, now seen corresponding path program 2 times [2018-04-11 12:51:39,603 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:39,614 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:39,838 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 12:51:39,838 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 12:51:39,838 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:39,838 INFO L182 omatonBuilderFactory]: Interpolants [2159#true, 2160#false, 2161#(and (= main_~length2~0 (select |#length| |main_#t~malloc13.base|)) (= 0 |main_#t~malloc13.offset|)), 2162#(and (= 0 main_~nondetString2~0.offset) (or (= (+ main_~nondetString2~0.offset main_~length2~0) 2) (= main_~length2~0 (select |#length| main_~nondetString2~0.base)))), 2163#(and (= 0 main_~nondetString2~0.offset) (or (= 0 (select (select |#memory_int| main_~nondetString2~0.base) 1)) (<= (+ main_~nondetString2~0.offset (select |#length| main_~nondetString2~0.base)) 1) (<= 3 (+ main_~nondetString2~0.offset (select |#length| main_~nondetString2~0.base))))), 2164#(and (or (<= 3 (select |#length| |cstrspn_#in~s2.base|)) (= 0 (select (select |#memory_int| |cstrspn_#in~s2.base|) 1)) (<= (select |#length| |cstrspn_#in~s2.base|) 1)) (= 0 |cstrspn_#in~s2.offset|)), 2165#(and (= 0 cstrspn_~s2.offset) (or (<= 3 (select |#length| cstrspn_~s2.base)) (= 0 (select (select |#memory_int| cstrspn_~s2.base) 1)) (<= (select |#length| cstrspn_~s2.base) 1))), 2166#(and (or (<= 3 (select |#length| cstrspn_~s~0.base)) (<= (select |#length| cstrspn_~s~0.base) 1) (= 0 (select (select |#memory_int| cstrspn_~s~0.base) 1))) (= cstrspn_~s~0.offset 0)), 2167#(and (<= cstrspn_~s~0.offset 1) (<= 1 cstrspn_~s~0.offset) (or (<= (select |#length| cstrspn_~s~0.base) cstrspn_~s~0.offset) (= 0 (select (select |#memory_int| cstrspn_~s~0.base) cstrspn_~s~0.offset)) (<= (+ cstrspn_~s~0.offset 2) (select |#length| cstrspn_~s~0.base)))), 2168#(and (<= cstrspn_~s~0.offset 1) (<= 1 cstrspn_~s~0.offset) (or (= |cstrspn_#t~mem5| 0) (<= (+ cstrspn_~s~0.offset 2) (select |#length| cstrspn_~s~0.base)))), 2169#(and (<= cstrspn_~s~0.offset 1) (or (not |cstrspn_#t~short7|) (<= (+ cstrspn_~s~0.offset 2) (select |#length| cstrspn_~s~0.base))) (<= 1 cstrspn_~s~0.offset)), 2170#(and (<= cstrspn_~s~0.offset 1) (<= 1 cstrspn_~s~0.offset) (<= (+ cstrspn_~s~0.offset 2) (select |#length| cstrspn_~s~0.base))), 2171#(and (<= (+ cstrspn_~s~0.offset 1) (select |#length| cstrspn_~s~0.base)) (<= 2 cstrspn_~s~0.offset))] [2018-04-11 12:51:39,839 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:39,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 12:51:39,839 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 12:51:39,839 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2018-04-11 12:51:39,839 INFO L87 Difference]: Start difference. First operand 87 states and 98 transitions. Second operand 13 states. [2018-04-11 12:51:40,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:40,228 INFO L93 Difference]: Finished difference Result 140 states and 154 transitions. [2018-04-11 12:51:40,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 12:51:40,228 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2018-04-11 12:51:40,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:40,229 INFO L225 Difference]: With dead ends: 140 [2018-04-11 12:51:40,229 INFO L226 Difference]: Without dead ends: 138 [2018-04-11 12:51:40,229 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2018-04-11 12:51:40,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-04-11 12:51:40,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 101. [2018-04-11 12:51:40,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-04-11 12:51:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 114 transitions. [2018-04-11 12:51:40,233 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 114 transitions. Word has length 37 [2018-04-11 12:51:40,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:40,233 INFO L459 AbstractCegarLoop]: Abstraction has 101 states and 114 transitions. [2018-04-11 12:51:40,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 12:51:40,233 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 114 transitions. [2018-04-11 12:51:40,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-11 12:51:40,234 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:40,234 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:40,234 INFO L408 AbstractCegarLoop]: === Iteration 17 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:40,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1802186975, now seen corresponding path program 3 times [2018-04-11 12:51:40,235 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:40,248 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:40,383 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-11 12:51:40,384 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 12:51:40,384 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 12:51:40,384 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:40,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:40,384 INFO L182 omatonBuilderFactory]: Interpolants [2432#false, 2433#(and (= main_~length2~0 (select |#length| |main_#t~malloc13.base|)) (= 0 |main_#t~malloc13.offset|)), 2434#(and (= main_~nondetString2~0.offset 0) (= main_~length2~0 (select |#length| main_~nondetString2~0.base))), 2435#(and (= main_~nondetString2~0.offset 0) (= 0 (select (select |#memory_int| main_~nondetString2~0.base) (+ (select |#length| main_~nondetString2~0.base) (+ main_~nondetString2~0.offset (- 1)))))), 2436#(= 0 (select (select |#memory_int| |cstrspn_#in~s2.base|) (+ (select |#length| |cstrspn_#in~s2.base|) (- 1)))), 2437#(= 0 (select (select |#memory_int| cstrspn_~s2.base) (+ (select |#length| cstrspn_~s2.base) (- 1)))), 2438#(= 0 (select (select |#memory_int| cstrspn_~s~0.base) (+ (select |#length| cstrspn_~s~0.base) (- 1)))), 2439#(or (<= (select |#length| cstrspn_~s~0.base) cstrspn_~s~0.offset) (= 0 (select (select |#memory_int| cstrspn_~s~0.base) cstrspn_~s~0.offset)) (<= (+ cstrspn_~s~0.offset 2) (select |#length| cstrspn_~s~0.base))), 2440#(or (= |cstrspn_#t~mem5| 0) (and (<= 0 cstrspn_~s~0.offset) (<= (+ cstrspn_~s~0.offset 2) (select |#length| cstrspn_~s~0.base)))), 2441#(or (not |cstrspn_#t~short7|) (and (<= 0 cstrspn_~s~0.offset) (<= (+ cstrspn_~s~0.offset 2) (select |#length| cstrspn_~s~0.base)))), 2442#(and (<= 0 cstrspn_~s~0.offset) (<= (+ cstrspn_~s~0.offset 2) (select |#length| cstrspn_~s~0.base))), 2443#(and (<= (+ cstrspn_~s~0.offset 1) (select |#length| cstrspn_~s~0.base)) (<= 1 cstrspn_~s~0.offset)), 2431#true] [2018-04-11 12:51:40,384 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-11 12:51:40,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 12:51:40,384 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 12:51:40,385 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-04-11 12:51:40,385 INFO L87 Difference]: Start difference. First operand 101 states and 114 transitions. Second operand 13 states. [2018-04-11 12:51:40,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:40,626 INFO L93 Difference]: Finished difference Result 111 states and 120 transitions. [2018-04-11 12:51:40,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-11 12:51:40,626 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2018-04-11 12:51:40,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:40,626 INFO L225 Difference]: With dead ends: 111 [2018-04-11 12:51:40,626 INFO L226 Difference]: Without dead ends: 109 [2018-04-11 12:51:40,627 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2018-04-11 12:51:40,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-04-11 12:51:40,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 52. [2018-04-11 12:51:40,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-11 12:51:40,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2018-04-11 12:51:40,629 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 44 [2018-04-11 12:51:40,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:40,629 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2018-04-11 12:51:40,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 12:51:40,630 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2018-04-11 12:51:40,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-11 12:51:40,630 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:40,631 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:40,631 INFO L408 AbstractCegarLoop]: === Iteration 18 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:40,631 INFO L82 PathProgramCache]: Analyzing trace with hash 606683470, now seen corresponding path program 2 times [2018-04-11 12:51:40,631 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:40,645 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:40,845 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:40,845 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 12:51:40,845 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-04-11 12:51:40,845 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:40,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:40,845 INFO L182 omatonBuilderFactory]: Interpolants [2629#true, 2630#false, 2631#(and (= main_~length1~0 (select |#length| |main_#t~malloc12.base|)) (= (select |#valid| |main_#t~malloc12.base|) 1) (= 0 |main_#t~malloc12.offset|)), 2632#(and (= main_~length1~0 (select |#length| main_~nondetString1~0.base)) (= (select |#valid| main_~nondetString1~0.base) 1) (= main_~nondetString1~0.offset 0)), 2633#(and (= main_~length1~0 (select |#length| main_~nondetString1~0.base)) (not (= main_~nondetString1~0.base |main_#t~malloc13.base|)) (= main_~nondetString1~0.offset 0)), 2634#(and (= main_~length1~0 (select |#length| main_~nondetString1~0.base)) (not (= main_~nondetString1~0.base main_~nondetString2~0.base)) (= main_~nondetString1~0.offset 0)), 2635#(and (or (<= 3 (+ main_~nondetString1~0.offset (select |#length| main_~nondetString1~0.base))) (<= (+ main_~nondetString1~0.offset (select |#length| main_~nondetString1~0.base)) 1) (and (= 0 (select (select |#memory_int| main_~nondetString1~0.base) 1)) (not (= main_~nondetString1~0.base main_~nondetString2~0.base)))) (= main_~nondetString1~0.offset 0)), 2636#(and (or (<= (select |#length| |cstrspn_#in~s1.base|) 1) (<= 3 (select |#length| |cstrspn_#in~s1.base|)) (= 0 (select (select |#memory_int| |cstrspn_#in~s1.base|) 1))) (= 0 |cstrspn_#in~s1.offset|)), 2637#(and (= cstrspn_~sc1~0.offset 0) (or (<= (select |#length| cstrspn_~sc1~0.base) 1) (<= 3 (select |#length| cstrspn_~sc1~0.base)) (= 0 (select (select |#memory_int| cstrspn_~sc1~0.base) 1)))), 2638#(and (= cstrspn_~sc1~0.offset 1) (or (= 0 (select (select |#memory_int| cstrspn_~sc1~0.base) cstrspn_~sc1~0.offset)) (<= (select |#length| cstrspn_~sc1~0.base) cstrspn_~sc1~0.offset) (<= (+ cstrspn_~sc1~0.offset 2) (select |#length| cstrspn_~sc1~0.base)))), 2639#(and (= cstrspn_~sc1~0.offset 1) (or (<= (+ cstrspn_~sc1~0.offset 2) (select |#length| cstrspn_~sc1~0.base)) (= |cstrspn_#t~mem3| 0))), 2640#(and (= cstrspn_~sc1~0.offset 1) (<= (+ cstrspn_~sc1~0.offset 2) (select |#length| cstrspn_~sc1~0.base))), 2641#(and (<= (+ cstrspn_~sc1~0.offset 1) (select |#length| cstrspn_~sc1~0.base)) (<= 2 cstrspn_~sc1~0.offset))] [2018-04-11 12:51:40,845 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:40,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 12:51:40,846 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 12:51:40,846 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-04-11 12:51:40,846 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand 13 states. [2018-04-11 12:51:41,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:41,092 INFO L93 Difference]: Finished difference Result 78 states and 82 transitions. [2018-04-11 12:51:41,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 12:51:41,093 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2018-04-11 12:51:41,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:41,093 INFO L225 Difference]: With dead ends: 78 [2018-04-11 12:51:41,093 INFO L226 Difference]: Without dead ends: 78 [2018-04-11 12:51:41,093 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2018-04-11 12:51:41,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-04-11 12:51:41,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 67. [2018-04-11 12:51:41,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-04-11 12:51:41,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2018-04-11 12:51:41,095 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 48 [2018-04-11 12:51:41,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:41,095 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2018-04-11 12:51:41,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 12:51:41,095 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2018-04-11 12:51:41,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-11 12:51:41,096 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 12:51:41,096 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 12:51:41,096 INFO L408 AbstractCegarLoop]: === Iteration 19 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, cstrspnErr7RequiresViolation, cstrspnErr5RequiresViolation, cstrspnErr1RequiresViolation, cstrspnErr0RequiresViolation, cstrspnErr6RequiresViolation, cstrspnErr8RequiresViolation, cstrspnErr2RequiresViolation, cstrspnErr4RequiresViolation, cstrspnErr3RequiresViolation, cstrspnErr9RequiresViolation]=== [2018-04-11 12:51:41,096 INFO L82 PathProgramCache]: Analyzing trace with hash 538374265, now seen corresponding path program 3 times [2018-04-11 12:51:41,097 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 12:51:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 12:51:41,112 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 12:51:41,527 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 12:51:41,528 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-11 12:51:41,528 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-04-11 12:51:41,528 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-04-11 12:51:41,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 12:51:41,529 INFO L182 omatonBuilderFactory]: Interpolants [2816#(and (= cstrspn_~s~0.base cstrspn_~s2.base) (= cstrspn_~s~0.offset cstrspn_~s2.offset) (not (= |cstrspn_#t~mem4| (select (select |#memory_int| cstrspn_~sc1~0.base) (+ (select |#length| cstrspn_~sc1~0.base) (- 1)))))), 2817#(and (= cstrspn_~s~0.base cstrspn_~s2.base) (= cstrspn_~s~0.offset cstrspn_~s2.offset) (not (= cstrspn_~c~0 (select (select |#memory_int| cstrspn_~sc1~0.base) (+ (select |#length| cstrspn_~sc1~0.base) (- 1)))))), 2818#(and (not (= cstrspn_~c~0 (select (select |#memory_int| cstrspn_~sc1~0.base) (+ (select |#length| cstrspn_~sc1~0.base) (- 1))))) (= (select (select |#memory_int| cstrspn_~s2.base) cstrspn_~s2.offset) |cstrspn_#t~mem9|)), 2819#(not (= (select (select |#memory_int| cstrspn_~s2.base) cstrspn_~s2.offset) (select (select |#memory_int| cstrspn_~sc1~0.base) (+ (select |#length| cstrspn_~sc1~0.base) (- 1))))), 2820#(or (not (= (select (select |#memory_int| cstrspn_~s2.base) cstrspn_~s2.offset) (select (select |#memory_int| cstrspn_~sc1~0.base) cstrspn_~sc1~0.offset))) (<= (select |#length| cstrspn_~sc1~0.base) cstrspn_~sc1~0.offset) (<= (+ cstrspn_~sc1~0.offset 2) (select |#length| cstrspn_~sc1~0.base))), 2821#(or (not (= (select (select |#memory_int| cstrspn_~s2.base) cstrspn_~s2.offset) (select (select |#memory_int| cstrspn_~sc1~0.base) cstrspn_~sc1~0.offset))) (and (<= 0 cstrspn_~sc1~0.offset) (<= (+ cstrspn_~sc1~0.offset 2) (select |#length| cstrspn_~sc1~0.base)))), 2822#(or (not (= (select (select |#memory_int| cstrspn_~s~0.base) cstrspn_~s~0.offset) (select (select |#memory_int| cstrspn_~sc1~0.base) cstrspn_~sc1~0.offset))) (and (<= 0 cstrspn_~sc1~0.offset) (<= (+ cstrspn_~sc1~0.offset 2) (select |#length| cstrspn_~sc1~0.base)))), 2823#(or (not (= (select (select |#memory_int| cstrspn_~s~0.base) cstrspn_~s~0.offset) |cstrspn_#t~mem4|)) (and (<= 0 cstrspn_~sc1~0.offset) (<= (+ cstrspn_~sc1~0.offset 2) (select |#length| cstrspn_~sc1~0.base)))), 2824#(or (not (= (select (select |#memory_int| cstrspn_~s~0.base) cstrspn_~s~0.offset) cstrspn_~c~0)) (and (<= 0 cstrspn_~sc1~0.offset) (<= (+ cstrspn_~sc1~0.offset 2) (select |#length| cstrspn_~sc1~0.base)))), 2825#(or (not (= |cstrspn_#t~mem9| cstrspn_~c~0)) (and (<= 0 cstrspn_~sc1~0.offset) (<= (+ cstrspn_~sc1~0.offset 2) (select |#length| cstrspn_~sc1~0.base)))), 2826#(and (<= 0 cstrspn_~sc1~0.offset) (<= (+ cstrspn_~sc1~0.offset 2) (select |#length| cstrspn_~sc1~0.base))), 2827#(and (<= 1 cstrspn_~sc1~0.offset) (<= (+ cstrspn_~sc1~0.offset 1) (select |#length| cstrspn_~sc1~0.base))), 2805#true, 2806#false, 2807#(and (= main_~length1~0 (select |#length| |main_#t~malloc12.base|)) (= (select |#valid| |main_#t~malloc12.base|) 1) (= 0 |main_#t~malloc12.offset|)), 2808#(and (= main_~length1~0 (select |#length| main_~nondetString1~0.base)) (= (select |#valid| main_~nondetString1~0.base) 1) (= main_~nondetString1~0.offset 0)), 2809#(and (= main_~length1~0 (select |#length| main_~nondetString1~0.base)) (not (= main_~nondetString1~0.base |main_#t~malloc13.base|)) (= main_~nondetString1~0.offset 0)), 2810#(and (= main_~length1~0 (select |#length| main_~nondetString1~0.base)) (not (= main_~nondetString1~0.base main_~nondetString2~0.base)) (= main_~nondetString1~0.offset 0)), 2811#(and (not (= main_~nondetString1~0.base main_~nondetString2~0.base)) (= 0 (select (select |#memory_int| main_~nondetString1~0.base) (+ (select |#length| main_~nondetString1~0.base) (+ main_~nondetString1~0.offset (- 1))))) (= main_~nondetString1~0.offset 0)), 2812#(= 0 (select (select |#memory_int| |cstrspn_#in~s1.base|) (+ (select |#length| |cstrspn_#in~s1.base|) (- 1)))), 2813#(= 0 (select (select |#memory_int| cstrspn_~sc1~0.base) (+ (select |#length| cstrspn_~sc1~0.base) (- 1)))), 2814#(and (= |cstrspn_#t~mem3| (select (select |#memory_int| cstrspn_~sc1~0.base) cstrspn_~sc1~0.offset)) (= 0 (select (select |#memory_int| cstrspn_~sc1~0.base) (+ (select |#length| cstrspn_~sc1~0.base) (- 1))))), 2815#(and (= cstrspn_~s~0.base cstrspn_~s2.base) (= cstrspn_~s~0.offset cstrspn_~s2.offset) (not (= (select (select |#memory_int| cstrspn_~sc1~0.base) cstrspn_~sc1~0.offset) (select (select |#memory_int| cstrspn_~sc1~0.base) (+ (select |#length| cstrspn_~sc1~0.base) (- 1))))))] [2018-04-11 12:51:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 48 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-04-11 12:51:41,529 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-04-11 12:51:41,529 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-04-11 12:51:41,529 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2018-04-11 12:51:41,530 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 23 states. [2018-04-11 12:51:42,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 12:51:42,378 INFO L93 Difference]: Finished difference Result 156 states and 166 transitions. [2018-04-11 12:51:42,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 12:51:42,378 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 63 [2018-04-11 12:51:42,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 12:51:42,378 INFO L225 Difference]: With dead ends: 156 [2018-04-11 12:51:42,378 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 12:51:42,379 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=506, Invalid=2146, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 12:51:42,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 12:51:42,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 12:51:42,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 12:51:42,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 12:51:42,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2018-04-11 12:51:42,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 12:51:42,380 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 12:51:42,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-04-11 12:51:42,380 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 12:51:42,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 12:51:42,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 12:51:42 BoogieIcfgContainer [2018-04-11 12:51:42,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 12:51:42,384 INFO L168 Benchmark]: Toolchain (without parser) took 6368.54 ms. Allocated memory was 397.9 MB in the beginning and 781.7 MB in the end (delta: 383.8 MB). Free memory was 330.2 MB in the beginning and 599.7 MB in the end (delta: -269.5 MB). Peak memory consumption was 114.2 MB. Max. memory is 5.3 GB. [2018-04-11 12:51:42,386 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 397.9 MB. Free memory is still 356.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 12:51:42,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.83 ms. Allocated memory is still 397.9 MB. Free memory was 330.2 MB in the beginning and 306.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. [2018-04-11 12:51:42,386 INFO L168 Benchmark]: Boogie Preprocessor took 37.01 ms. Allocated memory is still 397.9 MB. Free memory was 306.4 MB in the beginning and 303.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 12:51:42,386 INFO L168 Benchmark]: RCFGBuilder took 384.31 ms. Allocated memory was 397.9 MB in the beginning and 606.1 MB in the end (delta: 208.1 MB). Free memory was 303.8 MB in the beginning and 539.4 MB in the end (delta: -235.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 5.3 GB. [2018-04-11 12:51:42,386 INFO L168 Benchmark]: TraceAbstraction took 5702.33 ms. Allocated memory was 606.1 MB in the beginning and 781.7 MB in the end (delta: 175.6 MB). Free memory was 539.4 MB in the beginning and 599.7 MB in the end (delta: -60.3 MB). Peak memory consumption was 115.3 MB. Max. memory is 5.3 GB. [2018-04-11 12:51:42,388 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 397.9 MB. Free memory is still 356.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 241.83 ms. Allocated memory is still 397.9 MB. Free memory was 330.2 MB in the beginning and 306.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.01 ms. Allocated memory is still 397.9 MB. Free memory was 306.4 MB in the beginning and 303.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 384.31 ms. Allocated memory was 397.9 MB in the beginning and 606.1 MB in the end (delta: 208.1 MB). Free memory was 303.8 MB in the beginning and 539.4 MB in the end (delta: -235.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 5702.33 ms. Allocated memory was 606.1 MB in the beginning and 781.7 MB in the end (delta: 175.6 MB). Free memory was 539.4 MB in the beginning and 599.7 MB in the end (delta: -60.3 MB). Peak memory consumption was 115.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 567]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 555]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 545]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 550]: 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: 548]: 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: 550]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 64 locations, 15 error locations. SAFE Result, 5.6s OverallTime, 19 OverallIterations, 4 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 703 SDtfs, 1466 SDslu, 2456 SDs, 0 SdLazy, 2534 SolverSat, 200 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 18/120 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, 19 MinimizatonAttempts, 198 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 538 NumberOfCodeBlocks, 538 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 519 ConstructedInterpolants, 0 QuantifiedInterpolants, 165414 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 13 PerfectInterpolantSequences, 18/120 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/cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_12-51-42-394.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_Array.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_12-51-42-394.csv Received shutdown request...