java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrlen-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 15:06:57,005 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 15:06:57,006 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 15:06:57,018 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 15:06:57,018 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 15:06:57,019 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 15:06:57,020 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 15:06:57,021 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 15:06:57,023 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 15:06:57,024 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 15:06:57,024 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 15:06:57,025 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 15:06:57,025 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 15:06:57,026 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 15:06:57,027 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 15:06:57,029 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 15:06:57,030 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 15:06:57,032 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 15:06:57,033 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 15:06:57,033 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 15:06:57,035 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 15:06:57,041 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-11 15:06:57,061 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 15:06:57,061 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 15:06:57,062 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 15:06:57,062 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 15:06:57,063 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 15:06:57,063 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 15:06:57,063 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 15:06:57,063 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 15:06:57,063 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 15:06:57,063 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 15:06:57,063 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 15:06:57,063 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 15:06:57,063 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 15:06:57,064 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 15:06:57,064 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 15:06:57,064 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 15:06:57,064 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 15:06:57,064 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 15:06:57,064 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 15:06:57,064 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 15:06:57,064 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 15:06:57,065 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 15:06:57,065 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 15:06:57,065 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 15:06:57,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 15:06:57,107 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 15:06:57,110 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 15:06:57,112 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 15:06:57,113 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 15:06:57,113 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,423 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG2bad7fcb7 [2018-04-11 15:06:57,547 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 15:06:57,547 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 15:06:57,548 INFO L168 CDTParser]: Scanning cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,554 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 15:06:57,555 INFO L215 ultiparseSymbolTable]: [2018-04-11 15:06:57,555 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 15:06:57,555 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__ ('') in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,555 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,555 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,555 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,555 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 15:06:57,555 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____qaddr_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__int16_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__blksize_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____blksize_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____u_char in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____caddr_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__fd_set in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____uint32_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____id_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__time_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__uid_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__u_int32_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__lldiv_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,556 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____dev_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__ulong in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__sigset_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__mode_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__u_char in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__div_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____u_long in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____int16_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__caddr_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____uint16_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____fsid_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__int8_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,557 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__daddr_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,558 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__ino_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,558 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__u_long in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,558 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pid_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,558 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__ldiv_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,558 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,558 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,558 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____loff_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,558 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__clock_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,558 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____u_short in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,558 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__suseconds_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,558 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,558 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,559 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__register_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,559 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__fsid_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,559 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____int8_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,559 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____uint8_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,559 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____key_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,559 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____clock_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,559 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,559 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__u_quad_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,559 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____rlim64_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,559 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__ushort in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,559 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,559 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____time_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,560 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__loff_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,560 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__int64_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,560 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__u_int64_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,560 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____daddr_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,560 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,560 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__nlink_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,560 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__wchar_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,560 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____fd_mask in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,560 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__uint in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,560 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____uid_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,560 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,561 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____int64_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,561 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____u_int in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,561 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____uint64_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,561 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____useconds_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,561 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__u_int8_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,561 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,561 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____clockid_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,561 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,561 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__u_int16_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,561 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__quad_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,562 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,562 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,562 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,562 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____fsword_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,562 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__fd_mask in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,562 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,562 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__dev_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,562 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__gid_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,562 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__ssize_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,562 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__u_short in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,562 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__id_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____sigset_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____ino_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____ino64_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____off_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____quad_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____mode_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__int32_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____gid_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____intptr_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,563 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____u_quad_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__size_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__off_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____nlink_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____ssize_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____socklen_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__key_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__timer_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____rlim_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__u_int in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__clockid_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____int32_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,564 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,565 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____timer_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,565 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____off64_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,565 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____suseconds_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,565 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,565 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,565 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____pid_t in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:57,579 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG2bad7fcb7 [2018-04-11 15:06:57,582 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 15:06:57,583 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 15:06:57,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 15:06:57,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 15:06:57,587 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 15:06:57,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:06:57" (1/1) ... [2018-04-11 15:06:57,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a25b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:57, skipping insertion in model container [2018-04-11 15:06:57,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:06:57" (1/1) ... [2018-04-11 15:06:57,601 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:06:57,622 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:06:57,744 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:06:57,777 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:06:57,783 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 15:06:57,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:57 WrapperNode [2018-04-11 15:06:57,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 15:06:57,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 15:06:57,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 15:06:57,812 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 15:06:57,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:57" (1/1) ... [2018-04-11 15:06:57,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:57" (1/1) ... [2018-04-11 15:06:57,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:57" (1/1) ... [2018-04-11 15:06:57,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:57" (1/1) ... [2018-04-11 15:06:57,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:57" (1/1) ... [2018-04-11 15:06:57,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:57" (1/1) ... [2018-04-11 15:06:57,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:57" (1/1) ... [2018-04-11 15:06:57,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 15:06:57,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 15:06:57,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 15:06:57,847 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 15:06:57,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:57" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 15:06:57,941 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 15:06:57,941 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 15:06:57,941 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 15:06:57,941 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 15:06:57,941 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrlen [2018-04-11 15:06:57,941 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 15:06:57,941 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 15:06:57,942 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 15:06:57,942 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 15:06:57,942 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 15:06:57,942 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 15:06:57,942 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 15:06:57,942 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 15:06:57,942 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 15:06:57,942 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 15:06:57,942 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 15:06:57,943 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 15:06:57,943 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 15:06:57,943 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 15:06:57,943 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 15:06:57,943 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 15:06:57,943 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 15:06:57,943 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 15:06:57,943 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 15:06:57,943 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 15:06:57,944 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 15:06:57,944 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 15:06:57,944 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 15:06:57,944 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 15:06:57,944 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 15:06:57,944 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 15:06:57,944 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 15:06:57,944 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 15:06:57,944 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 15:06:57,945 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 15:06:57,945 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 15:06:57,945 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 15:06:57,945 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 15:06:57,945 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 15:06:57,945 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 15:06:57,945 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 15:06:57,945 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 15:06:57,945 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 15:06:57,945 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 15:06:57,946 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 15:06:57,946 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 15:06:57,946 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 15:06:57,946 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 15:06:57,946 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 15:06:57,946 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 15:06:57,946 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 15:06:57,946 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 15:06:57,946 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 15:06:57,946 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 15:06:57,947 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 15:06:57,947 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 15:06:57,947 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 15:06:57,947 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 15:06:57,947 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 15:06:57,947 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 15:06:57,947 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 15:06:57,947 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 15:06:57,947 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 15:06:57,947 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 15:06:57,948 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 15:06:57,948 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 15:06:57,948 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 15:06:57,948 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 15:06:57,948 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 15:06:57,948 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 15:06:57,948 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 15:06:57,948 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 15:06:57,948 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 15:06:57,948 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 15:06:57,948 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 15:06:57,949 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 15:06:57,950 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 15:06:57,950 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 15:06:57,950 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 15:06:57,950 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 15:06:57,950 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 15:06:57,950 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 15:06:57,950 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 15:06:57,950 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 15:06:57,950 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 15:06:57,950 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 15:06:57,951 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 15:06:57,951 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 15:06:57,951 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 15:06:57,951 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 15:06:57,951 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 15:06:57,951 INFO L128 BoogieDeclarations]: Found specification of procedure cstrlen [2018-04-11 15:06:57,951 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 15:06:57,951 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 15:06:57,951 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 15:06:57,952 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 15:06:57,952 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 15:06:57,952 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 15:06:57,952 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 15:06:57,952 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 15:06:58,161 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 15:06:58,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:06:58 BoogieIcfgContainer [2018-04-11 15:06:58,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 15:06:58,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 15:06:58,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 15:06:58,164 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 15:06:58,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 03:06:57" (1/3) ... [2018-04-11 15:06:58,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b4437d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:06:58, skipping insertion in model container [2018-04-11 15:06:58,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:06:57" (2/3) ... [2018-04-11 15:06:58,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b4437d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:06:58, skipping insertion in model container [2018-04-11 15:06:58,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:06:58" (3/3) ... [2018-04-11 15:06:58,166 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:06:58,171 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 15:06:58,176 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-04-11 15:06:58,205 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 15:06:58,206 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 15:06:58,206 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 15:06:58,206 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 15:06:58,206 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 15:06:58,206 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 15:06:58,206 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 15:06:58,206 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 15:06:58,206 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 15:06:58,207 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 15:06:58,215 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-04-11 15:06:58,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-11 15:06:58,221 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:58,221 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:58,221 INFO L408 AbstractCegarLoop]: === Iteration 1 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:58,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1076523865, now seen corresponding path program 1 times [2018-04-11 15:06:58,225 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:58,225 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:58,255 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:58,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:58,255 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:58,286 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:58,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:58,324 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:58,325 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 15:06:58,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 15:06:58,333 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 15:06:58,333 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 15:06:58,335 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2018-04-11 15:06:58,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:58,379 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2018-04-11 15:06:58,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 15:06:58,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-04-11 15:06:58,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:58,385 INFO L225 Difference]: With dead ends: 29 [2018-04-11 15:06:58,385 INFO L226 Difference]: Without dead ends: 26 [2018-04-11 15:06:58,387 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:06:58,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-04-11 15:06:58,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-04-11 15:06:58,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-04-11 15:06:58,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-04-11 15:06:58,407 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 10 [2018-04-11 15:06:58,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:58,407 INFO L459 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-04-11 15:06:58,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 15:06:58,407 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-04-11 15:06:58,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-11 15:06:58,408 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:58,408 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:58,408 INFO L408 AbstractCegarLoop]: === Iteration 2 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:58,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1076523866, now seen corresponding path program 1 times [2018-04-11 15:06:58,408 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:58,408 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:58,409 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:58,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:58,409 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:58,417 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:58,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:58,460 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:58,460 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 15:06:58,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 15:06:58,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 15:06:58,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:06:58,462 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 5 states. [2018-04-11 15:06:58,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:58,495 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-04-11 15:06:58,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:06:58,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-04-11 15:06:58,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:58,496 INFO L225 Difference]: With dead ends: 25 [2018-04-11 15:06:58,496 INFO L226 Difference]: Without dead ends: 25 [2018-04-11 15:06:58,497 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:06:58,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-04-11 15:06:58,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-04-11 15:06:58,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-04-11 15:06:58,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-04-11 15:06:58,499 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 10 [2018-04-11 15:06:58,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:58,500 INFO L459 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-04-11 15:06:58,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 15:06:58,500 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-04-11 15:06:58,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 15:06:58,500 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:58,500 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:58,500 INFO L408 AbstractCegarLoop]: === Iteration 3 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:58,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1957054019, now seen corresponding path program 1 times [2018-04-11 15:06:58,501 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:58,501 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:58,502 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:58,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:58,502 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:58,514 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:58,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:58,552 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:58,552 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 15:06:58,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 15:06:58,553 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 15:06:58,553 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:06:58,553 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 5 states. [2018-04-11 15:06:58,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:58,580 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-04-11 15:06:58,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 15:06:58,580 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 15:06:58,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:58,580 INFO L225 Difference]: With dead ends: 24 [2018-04-11 15:06:58,580 INFO L226 Difference]: Without dead ends: 24 [2018-04-11 15:06:58,581 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 15:06:58,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-04-11 15:06:58,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-04-11 15:06:58,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-04-11 15:06:58,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-04-11 15:06:58,582 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 14 [2018-04-11 15:06:58,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:58,583 INFO L459 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-04-11 15:06:58,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 15:06:58,583 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-04-11 15:06:58,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 15:06:58,583 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:58,583 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:58,583 INFO L408 AbstractCegarLoop]: === Iteration 4 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:58,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1957054020, now seen corresponding path program 1 times [2018-04-11 15:06:58,583 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:58,583 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:58,584 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:58,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:58,584 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:58,593 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:58,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:58,683 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:58,683 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 15:06:58,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 15:06:58,684 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 15:06:58,684 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-04-11 15:06:58,684 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 8 states. [2018-04-11 15:06:58,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:58,745 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-04-11 15:06:58,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 15:06:58,745 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-04-11 15:06:58,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:58,747 INFO L225 Difference]: With dead ends: 30 [2018-04-11 15:06:58,747 INFO L226 Difference]: Without dead ends: 30 [2018-04-11 15:06:58,748 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-04-11 15:06:58,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-04-11 15:06:58,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2018-04-11 15:06:58,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-04-11 15:06:58,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-04-11 15:06:58,751 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 14 [2018-04-11 15:06:58,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:58,751 INFO L459 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-04-11 15:06:58,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 15:06:58,751 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-04-11 15:06:58,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 15:06:58,752 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:58,752 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:58,752 INFO L408 AbstractCegarLoop]: === Iteration 5 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:58,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1584758491, now seen corresponding path program 1 times [2018-04-11 15:06:58,752 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:58,753 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:58,753 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:58,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:58,754 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:58,768 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:58,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:58,857 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:06:58,857 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-11 15:06:58,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 15:06:58,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 15:06:58,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-11 15:06:58,857 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2018-04-11 15:06:58,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:58,942 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2018-04-11 15:06:58,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 15:06:58,942 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2018-04-11 15:06:58,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:58,943 INFO L225 Difference]: With dead ends: 42 [2018-04-11 15:06:58,943 INFO L226 Difference]: Without dead ends: 42 [2018-04-11 15:06:58,943 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-04-11 15:06:58,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-04-11 15:06:58,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2018-04-11 15:06:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-04-11 15:06:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2018-04-11 15:06:58,945 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 17 [2018-04-11 15:06:58,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:58,945 INFO L459 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2018-04-11 15:06:58,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 15:06:58,945 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-04-11 15:06:58,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 15:06:58,946 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:58,946 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:58,946 INFO L408 AbstractCegarLoop]: === Iteration 6 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:58,946 INFO L82 PathProgramCache]: Analyzing trace with hash -883693913, now seen corresponding path program 1 times [2018-04-11 15:06:58,946 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:58,946 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:58,947 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:58,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:58,947 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:58,956 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:59,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:59,083 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:59,083 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:59,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:59,122 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:59,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:06:59,147 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:59,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:59,151 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:06:59,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 15:06:59,183 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:06:59,184 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:59,214 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:59,229 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:59,230 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-04-11 15:06:59,296 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-04-11 15:06:59,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 15:06:59,303 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:06:59,306 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:59,315 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:59,316 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:54 [2018-04-11 15:06:59,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:59,390 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:06:59,391 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2018-04-11 15:06:59,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 15:06:59,391 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 15:06:59,391 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2018-04-11 15:06:59,392 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 17 states. [2018-04-11 15:06:59,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:06:59,715 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2018-04-11 15:06:59,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 15:06:59,716 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2018-04-11 15:06:59,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:06:59,716 INFO L225 Difference]: With dead ends: 47 [2018-04-11 15:06:59,716 INFO L226 Difference]: Without dead ends: 47 [2018-04-11 15:06:59,717 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2018-04-11 15:06:59,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-04-11 15:06:59,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 40. [2018-04-11 15:06:59,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-11 15:06:59,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2018-04-11 15:06:59,721 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 17 [2018-04-11 15:06:59,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:06:59,721 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2018-04-11 15:06:59,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 15:06:59,721 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-04-11 15:06:59,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-11 15:06:59,722 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:06:59,722 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:06:59,722 INFO L408 AbstractCegarLoop]: === Iteration 7 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:06:59,722 INFO L82 PathProgramCache]: Analyzing trace with hash 2024137186, now seen corresponding path program 2 times [2018-04-11 15:06:59,722 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:06:59,722 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:06:59,723 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:59,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:06:59,723 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:06:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:06:59,734 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:06:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:06:59,877 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:06:59,877 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:06:59,878 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 15:06:59,900 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 15:06:59,900 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:06:59,903 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:06:59,907 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:06:59,907 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:59,909 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:59,909 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:06:59,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 15:06:59,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:06:59,916 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:06:59,917 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:59,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:06:59,920 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-11 15:06:59,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 15:06:59,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 15:06:59,984 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:06:59,986 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:59,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:06:59,991 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:40 [2018-04-11 15:07:00,026 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:07:00,026 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:07:00,026 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 16 [2018-04-11 15:07:00,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-11 15:07:00,026 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-11 15:07:00,027 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2018-04-11 15:07:00,027 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 17 states. [2018-04-11 15:07:00,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:07:00,309 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2018-04-11 15:07:00,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 15:07:00,309 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 20 [2018-04-11 15:07:00,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:07:00,310 INFO L225 Difference]: With dead ends: 53 [2018-04-11 15:07:00,310 INFO L226 Difference]: Without dead ends: 53 [2018-04-11 15:07:00,311 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2018-04-11 15:07:00,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-11 15:07:00,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43. [2018-04-11 15:07:00,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-04-11 15:07:00,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2018-04-11 15:07:00,316 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 20 [2018-04-11 15:07:00,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:07:00,316 INFO L459 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2018-04-11 15:07:00,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-11 15:07:00,316 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2018-04-11 15:07:00,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 15:07:00,317 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:07:00,317 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] [2018-04-11 15:07:00,317 INFO L408 AbstractCegarLoop]: === Iteration 8 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:07:00,317 INFO L82 PathProgramCache]: Analyzing trace with hash 413064626, now seen corresponding path program 1 times [2018-04-11 15:07:00,317 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:07:00,317 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:07:00,318 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:07:00,318 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 15:07:00,318 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:07:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:07:00,329 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:07:00,332 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:07:00,332 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:07:00,332 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:07:00,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:07:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:07:00,345 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:07:00,363 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:07:00,364 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-11 15:07:00,364 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:07:00,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:07:00,365 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 15:07:00,380 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc5.base| Int)) (and (= |c_#valid| (store |c_old(#valid)| |main_#t~malloc5.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc5.base|)))) is different from true [2018-04-11 15:07:00,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:07:00,382 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:07:00,382 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 15:07:00,382 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 15:07:00,382 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 15:07:00,382 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2018-04-11 15:07:00,382 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 6 states. [2018-04-11 15:07:00,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:07:00,422 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-04-11 15:07:00,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:07:00,422 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-04-11 15:07:00,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:07:00,422 INFO L225 Difference]: With dead ends: 42 [2018-04-11 15:07:00,422 INFO L226 Difference]: Without dead ends: 24 [2018-04-11 15:07:00,423 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=28, Unknown=1, NotChecked=10, Total=56 [2018-04-11 15:07:00,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-04-11 15:07:00,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-04-11 15:07:00,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-04-11 15:07:00,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-04-11 15:07:00,424 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2018-04-11 15:07:00,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:07:00,424 INFO L459 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-04-11 15:07:00,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 15:07:00,424 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-04-11 15:07:00,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 15:07:00,424 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:07:00,424 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:07:00,424 INFO L408 AbstractCegarLoop]: === Iteration 9 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:07:00,424 INFO L82 PathProgramCache]: Analyzing trace with hash -269952825, now seen corresponding path program 3 times [2018-04-11 15:07:00,424 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:07:00,425 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:07:00,425 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:07:00,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:07:00,425 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:07:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:07:00,432 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:07:00,522 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 15:07:00,522 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:07:00,522 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:07:00,522 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 15:07:00,546 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-11 15:07:00,546 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:07:00,549 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:07:00,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:07:00,553 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:07:00,556 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:07:00,556 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:07:00,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 15:07:00,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 15:07:00,563 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:07:00,564 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:07:00,565 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:07:00,565 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-11 15:07:00,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 15:07:00,593 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 15:07:00,593 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:07:00,596 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:07:00,600 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:07:00,600 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:34 [2018-04-11 15:07:00,622 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-11 15:07:00,622 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:07:00,622 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2018-04-11 15:07:00,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 15:07:00,622 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 15:07:00,622 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-04-11 15:07:00,622 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 12 states. [2018-04-11 15:07:00,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:07:00,728 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-04-11 15:07:00,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 15:07:00,729 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2018-04-11 15:07:00,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:07:00,729 INFO L225 Difference]: With dead ends: 23 [2018-04-11 15:07:00,729 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 15:07:00,730 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2018-04-11 15:07:00,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 15:07:00,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 15:07:00,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 15:07:00,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 15:07:00,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-04-11 15:07:00,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:07:00,730 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 15:07:00,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 15:07:00,731 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 15:07:00,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 15:07:00,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 03:07:00 BoogieIcfgContainer [2018-04-11 15:07:00,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 15:07:00,734 INFO L168 Benchmark]: Toolchain (without parser) took 3152.25 ms. Allocated memory was 395.3 MB in the beginning and 671.1 MB in the end (delta: 275.8 MB). Free memory was 328.7 MB in the beginning and 511.2 MB in the end (delta: -182.4 MB). Peak memory consumption was 93.3 MB. Max. memory is 5.3 GB. [2018-04-11 15:07:00,735 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 395.3 MB. Free memory is still 355.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 15:07:00,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.01 ms. Allocated memory is still 395.3 MB. Free memory was 326.1 MB in the beginning and 303.4 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. [2018-04-11 15:07:00,736 INFO L168 Benchmark]: Boogie Preprocessor took 34.43 ms. Allocated memory is still 395.3 MB. Free memory was 303.4 MB in the beginning and 300.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 15:07:00,736 INFO L168 Benchmark]: RCFGBuilder took 314.79 ms. Allocated memory was 395.3 MB in the beginning and 596.6 MB in the end (delta: 201.3 MB). Free memory was 300.8 MB in the beginning and 535.1 MB in the end (delta: -234.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 5.3 GB. [2018-04-11 15:07:00,736 INFO L168 Benchmark]: TraceAbstraction took 2571.46 ms. Allocated memory was 596.6 MB in the beginning and 671.1 MB in the end (delta: 74.4 MB). Free memory was 535.1 MB in the beginning and 511.2 MB in the end (delta: 23.9 MB). Peak memory consumption was 98.3 MB. Max. memory is 5.3 GB. [2018-04-11 15:07:00,737 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 395.3 MB. Free memory is still 355.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 229.01 ms. Allocated memory is still 395.3 MB. Free memory was 326.1 MB in the beginning and 303.4 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.43 ms. Allocated memory is still 395.3 MB. Free memory was 303.4 MB in the beginning and 300.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 314.79 ms. Allocated memory was 395.3 MB in the beginning and 596.6 MB in the end (delta: 201.3 MB). Free memory was 300.8 MB in the beginning and 535.1 MB in the end (delta: -234.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2571.46 ms. Allocated memory was 596.6 MB in the beginning and 671.1 MB in the end (delta: 74.4 MB). Free memory was 535.1 MB in the beginning and 511.2 MB in the end (delta: 23.9 MB). Peak memory consumption was 98.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 543]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 553]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 36 locations, 5 error locations. SAFE Result, 2.5s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 166 SDtfs, 275 SDslu, 646 SDs, 0 SdLazy, 627 SolverSat, 83 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 58 SyntacticMatches, 10 SemanticMatches, 98 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 26 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 195 ConstructedInterpolants, 12 QuantifiedInterpolants, 28203 SizeOfPredicates, 24 NumberOfNonLiveVariables, 349 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 12/50 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/cstrlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_15-07-00-743.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_15-07-00-743.csv Received shutdown request...