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 0.1.23-408c70d-m [2018-04-13 03:53:05,086 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-13 03:53:05,087 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-13 03:53:05,101 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-04-13 03:53:05,108 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-13 03:53:05,108 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-13 03:53:05,109 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-13 03:53:05,110 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-13 03:53:05,111 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-13 03:53:05,113 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-13 03:53:05,114 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-13 03:53:05,115 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-13 03:53:05,116 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-13 03:53:05,117 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-13 03:53:05,122 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-13 03:53:05,132 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-13 03:53:05,132 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-13 03:53:05,133 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-13 03:53:05,134 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-13 03:53:05,134 INFO L133 SettingsManager]: * Use SBE=true [2018-04-13 03:53:05,134 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-13 03:53:05,134 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-13 03:53:05,134 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-13 03:53:05,134 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-13 03:53:05,135 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-13 03:53:05,135 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-13 03:53:05,135 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-13 03:53:05,135 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-13 03:53:05,135 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-13 03:53:05,135 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-13 03:53:05,135 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-13 03:53:05,136 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-13 03:53:05,136 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-13 03:53:05,136 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-13 03:53:05,136 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-13 03:53:05,136 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-13 03:53:05,136 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-13 03:53:05,137 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-13 03:53:05,137 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-13 03:53:05,166 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-13 03:53:05,178 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-13 03:53:05,181 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-13 03:53:05,182 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-13 03:53:05,184 INFO L276 PluginConnector]: CDTParser initialized [2018-04-13 03:53:05,184 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 [2018-04-13 03:53:05,448 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGfef35d431 [2018-04-13 03:53:05,637 INFO L287 CDTParser]: IsIndexed: true [2018-04-13 03:53:05,637 INFO L288 CDTParser]: Found 1 translation units. [2018-04-13 03:53:05,638 INFO L168 CDTParser]: Scanning cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-13 03:53:05,644 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-13 03:53:05,645 INFO L215 ultiparseSymbolTable]: [2018-04-13 03:53:05,645 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-13 03:53:05,645 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 [2018-04-13 03:53:05,645 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-13 03:53:05,645 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 [2018-04-13 03:53:05,645 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 [2018-04-13 03:53:05,645 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-13 03:53:05,645 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 [2018-04-13 03:53:05,646 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 [2018-04-13 03:53:05,646 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 [2018-04-13 03:53:05,646 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 [2018-04-13 03:53:05,646 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 [2018-04-13 03:53:05,646 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 [2018-04-13 03:53:05,646 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 [2018-04-13 03:53:05,646 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 [2018-04-13 03:53:05,646 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 [2018-04-13 03:53:05,646 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 [2018-04-13 03:53:05,647 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 [2018-04-13 03:53:05,647 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 [2018-04-13 03:53:05,647 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 [2018-04-13 03:53:05,647 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 [2018-04-13 03:53:05,647 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 [2018-04-13 03:53:05,647 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 [2018-04-13 03:53:05,647 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 [2018-04-13 03:53:05,647 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 [2018-04-13 03:53:05,647 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 [2018-04-13 03:53:05,647 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 [2018-04-13 03:53:05,648 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 [2018-04-13 03:53:05,648 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 [2018-04-13 03:53:05,648 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 [2018-04-13 03:53:05,648 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 [2018-04-13 03:53:05,648 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 [2018-04-13 03:53:05,648 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 [2018-04-13 03:53:05,648 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 [2018-04-13 03:53:05,648 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 [2018-04-13 03:53:05,648 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 [2018-04-13 03:53:05,648 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 [2018-04-13 03:53:05,649 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 [2018-04-13 03:53:05,649 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 [2018-04-13 03:53:05,649 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 [2018-04-13 03:53:05,649 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 [2018-04-13 03:53:05,649 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 [2018-04-13 03:53:05,649 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 [2018-04-13 03:53:05,649 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 [2018-04-13 03:53:05,649 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 [2018-04-13 03:53:05,649 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 [2018-04-13 03:53:05,649 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 [2018-04-13 03:53:05,650 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 [2018-04-13 03:53:05,650 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 [2018-04-13 03:53:05,650 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 [2018-04-13 03:53:05,650 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 [2018-04-13 03:53:05,650 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 [2018-04-13 03:53:05,650 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 [2018-04-13 03:53:05,650 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 [2018-04-13 03:53:05,650 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 [2018-04-13 03:53:05,650 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 [2018-04-13 03:53:05,650 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 [2018-04-13 03:53:05,650 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 [2018-04-13 03:53:05,651 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 [2018-04-13 03:53:05,651 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 [2018-04-13 03:53:05,651 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 [2018-04-13 03:53:05,651 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 [2018-04-13 03:53:05,651 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 [2018-04-13 03:53:05,651 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 [2018-04-13 03:53:05,651 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 [2018-04-13 03:53:05,651 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 [2018-04-13 03:53:05,651 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 [2018-04-13 03:53:05,651 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 [2018-04-13 03:53:05,651 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 [2018-04-13 03:53:05,651 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 [2018-04-13 03:53:05,652 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 [2018-04-13 03:53:05,652 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 [2018-04-13 03:53:05,652 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 [2018-04-13 03:53:05,652 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 [2018-04-13 03:53:05,652 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 [2018-04-13 03:53:05,652 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 [2018-04-13 03:53:05,652 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 [2018-04-13 03:53:05,652 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 [2018-04-13 03:53:05,652 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 [2018-04-13 03:53:05,652 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 [2018-04-13 03:53:05,652 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,653 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,654 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,655 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 [2018-04-13 03:53:05,656 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 [2018-04-13 03:53:05,656 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 [2018-04-13 03:53:05,656 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 [2018-04-13 03:53:05,656 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 [2018-04-13 03:53:05,656 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 [2018-04-13 03:53:05,656 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 [2018-04-13 03:53:05,667 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGfef35d431 [2018-04-13 03:53:05,671 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-13 03:53:05,672 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-13 03:53:05,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-13 03:53:05,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-13 03:53:05,679 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-13 03:53:05,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 03:53:05" (1/1) ... [2018-04-13 03:53:05,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@619c2b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:53:05, skipping insertion in model container [2018-04-13 03:53:05,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 03:53:05" (1/1) ... [2018-04-13 03:53:05,693 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 03:53:05,716 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-13 03:53:05,835 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 03:53:05,864 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-13 03:53:05,870 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-13 03:53:05,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:53:05 WrapperNode [2018-04-13 03:53:05,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-13 03:53:05,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-13 03:53:05,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-13 03:53:05,902 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-13 03:53:05,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:53:05" (1/1) ... [2018-04-13 03:53:05,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:53:05" (1/1) ... [2018-04-13 03:53:05,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:53:05" (1/1) ... [2018-04-13 03:53:05,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:53:05" (1/1) ... [2018-04-13 03:53:05,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:53:05" (1/1) ... [2018-04-13 03:53:05,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:53:05" (1/1) ... [2018-04-13 03:53:05,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:53:05" (1/1) ... [2018-04-13 03:53:05,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-13 03:53:05,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-13 03:53:05,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-13 03:53:05,936 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-13 03:53:05,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:53:05" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-13 03:53:06,040 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-13 03:53:06,040 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-13 03:53:06,040 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-13 03:53:06,040 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-13 03:53:06,040 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrlen [2018-04-13 03:53:06,040 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-13 03:53:06,040 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-13 03:53:06,040 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fcstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-13 03:53:06,040 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-13 03:53:06,041 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-13 03:53:06,041 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-13 03:53:06,041 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-13 03:53:06,041 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-13 03:53:06,041 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-13 03:53:06,041 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-13 03:53:06,041 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-13 03:53:06,041 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-13 03:53:06,041 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-13 03:53:06,041 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-13 03:53:06,042 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-13 03:53:06,042 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-13 03:53:06,042 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-13 03:53:06,042 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-13 03:53:06,042 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-13 03:53:06,042 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-13 03:53:06,042 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-13 03:53:06,042 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-13 03:53:06,042 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-13 03:53:06,042 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-13 03:53:06,043 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-13 03:53:06,043 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-13 03:53:06,043 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-13 03:53:06,043 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-13 03:53:06,043 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-13 03:53:06,043 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-13 03:53:06,043 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-13 03:53:06,043 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-13 03:53:06,043 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-13 03:53:06,044 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-13 03:53:06,044 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-13 03:53:06,044 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-13 03:53:06,044 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-13 03:53:06,044 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-13 03:53:06,044 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-13 03:53:06,044 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-13 03:53:06,044 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-13 03:53:06,044 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-13 03:53:06,044 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-13 03:53:06,044 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-13 03:53:06,045 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-13 03:53:06,046 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-13 03:53:06,047 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-13 03:53:06,048 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-13 03:53:06,048 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-13 03:53:06,048 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-13 03:53:06,048 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-13 03:53:06,048 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-13 03:53:06,048 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-13 03:53:06,048 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-13 03:53:06,048 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-13 03:53:06,048 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-13 03:53:06,048 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-13 03:53:06,049 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-13 03:53:06,049 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-13 03:53:06,049 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-13 03:53:06,049 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-13 03:53:06,049 INFO L128 BoogieDeclarations]: Found specification of procedure cstrlen [2018-04-13 03:53:06,049 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-13 03:53:06,049 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-13 03:53:06,049 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-13 03:53:06,049 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-13 03:53:06,049 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-13 03:53:06,049 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-13 03:53:06,049 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-13 03:53:06,050 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-13 03:53:06,290 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-13 03:53:06,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 03:53:06 BoogieIcfgContainer [2018-04-13 03:53:06,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-13 03:53:06,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-13 03:53:06,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-13 03:53:06,295 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-13 03:53:06,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 03:53:05" (1/3) ... [2018-04-13 03:53:06,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5314e49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 03:53:06, skipping insertion in model container [2018-04-13 03:53:06,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 03:53:05" (2/3) ... [2018-04-13 03:53:06,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5314e49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 03:53:06, skipping insertion in model container [2018-04-13 03:53:06,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 03:53:06" (3/3) ... [2018-04-13 03:53:06,298 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-13 03:53:06,306 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-13 03:53:06,316 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-04-13 03:53:06,348 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-13 03:53:06,348 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-13 03:53:06,348 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-13 03:53:06,348 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-13 03:53:06,348 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-13 03:53:06,349 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-13 03:53:06,349 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-13 03:53:06,349 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-13 03:53:06,349 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-13 03:53:06,349 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-13 03:53:06,356 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-04-13 03:53:06,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-13 03:53:06,361 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 03:53:06,362 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 03:53:06,362 INFO L408 AbstractCegarLoop]: === Iteration 1 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-13 03:53:06,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1076523865, now seen corresponding path program 1 times [2018-04-13 03:53:06,365 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 03:53:06,366 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 03:53:06,395 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:06,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 03:53:06,395 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 03:53:06,429 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 03:53:06,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 03:53:06,470 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 03:53:06,470 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-13 03:53:06,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-13 03:53:06,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-13 03:53:06,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-13 03:53:06,481 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2018-04-13 03:53:06,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 03:53:06,523 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2018-04-13 03:53:06,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-13 03:53:06,525 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-04-13 03:53:06,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 03:53:06,531 INFO L225 Difference]: With dead ends: 29 [2018-04-13 03:53:06,532 INFO L226 Difference]: Without dead ends: 26 [2018-04-13 03:53:06,533 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-13 03:53:06,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-04-13 03:53:06,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-04-13 03:53:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-04-13 03:53:06,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-04-13 03:53:06,554 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 10 [2018-04-13 03:53:06,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 03:53:06,555 INFO L459 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-04-13 03:53:06,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-13 03:53:06,555 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-04-13 03:53:06,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-13 03:53:06,555 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 03:53:06,555 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 03:53:06,555 INFO L408 AbstractCegarLoop]: === Iteration 2 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-13 03:53:06,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1076523866, now seen corresponding path program 1 times [2018-04-13 03:53:06,555 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 03:53:06,556 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 03:53:06,556 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:06,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 03:53:06,556 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 03:53:06,568 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 03:53:06,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 03:53:06,613 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 03:53:06,613 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-13 03:53:06,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-13 03:53:06,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-13 03:53:06,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-13 03:53:06,614 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 5 states. [2018-04-13 03:53:06,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 03:53:06,646 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-04-13 03:53:06,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-13 03:53:06,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-04-13 03:53:06,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 03:53:06,647 INFO L225 Difference]: With dead ends: 25 [2018-04-13 03:53:06,647 INFO L226 Difference]: Without dead ends: 25 [2018-04-13 03:53:06,648 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-04-13 03:53:06,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-04-13 03:53:06,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-04-13 03:53:06,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-04-13 03:53:06,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-04-13 03:53:06,651 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 10 [2018-04-13 03:53:06,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 03:53:06,651 INFO L459 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-04-13 03:53:06,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-13 03:53:06,651 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-04-13 03:53:06,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-13 03:53:06,651 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 03:53:06,651 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 03:53:06,651 INFO L408 AbstractCegarLoop]: === Iteration 3 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-13 03:53:06,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1957054019, now seen corresponding path program 1 times [2018-04-13 03:53:06,652 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 03:53:06,652 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 03:53:06,652 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:06,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 03:53:06,653 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 03:53:06,664 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 03:53:06,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 03:53:06,694 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 03:53:06,694 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-13 03:53:06,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-13 03:53:06,694 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-13 03:53:06,694 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-13 03:53:06,695 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 5 states. [2018-04-13 03:53:06,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 03:53:06,722 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-04-13 03:53:06,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-13 03:53:06,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-13 03:53:06,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 03:53:06,723 INFO L225 Difference]: With dead ends: 24 [2018-04-13 03:53:06,723 INFO L226 Difference]: Without dead ends: 24 [2018-04-13 03:53:06,723 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 [2018-04-13 03:53:06,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-04-13 03:53:06,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-04-13 03:53:06,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-04-13 03:53:06,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-04-13 03:53:06,726 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 14 [2018-04-13 03:53:06,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 03:53:06,726 INFO L459 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-04-13 03:53:06,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-13 03:53:06,727 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-04-13 03:53:06,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-13 03:53:06,727 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 03:53:06,727 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 03:53:06,727 INFO L408 AbstractCegarLoop]: === Iteration 4 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-13 03:53:06,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1957054020, now seen corresponding path program 1 times [2018-04-13 03:53:06,727 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 03:53:06,728 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 03:53:06,728 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:06,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 03:53:06,728 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 03:53:06,739 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 03:53:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 03:53:06,797 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 03:53:06,797 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-13 03:53:06,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-13 03:53:06,797 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-13 03:53:06,797 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-04-13 03:53:06,798 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 8 states. [2018-04-13 03:53:06,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 03:53:06,888 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-04-13 03:53:06,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-13 03:53:06,888 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-04-13 03:53:06,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 03:53:06,890 INFO L225 Difference]: With dead ends: 30 [2018-04-13 03:53:06,890 INFO L226 Difference]: Without dead ends: 30 [2018-04-13 03:53:06,891 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 [2018-04-13 03:53:06,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-04-13 03:53:06,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2018-04-13 03:53:06,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-04-13 03:53:06,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-04-13 03:53:06,893 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 14 [2018-04-13 03:53:06,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 03:53:06,893 INFO L459 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-04-13 03:53:06,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-13 03:53:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-04-13 03:53:06,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-13 03:53:06,893 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 03:53:06,893 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 03:53:06,894 INFO L408 AbstractCegarLoop]: === Iteration 5 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-13 03:53:06,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1584758491, now seen corresponding path program 1 times [2018-04-13 03:53:06,894 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 03:53:06,894 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 03:53:06,894 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:06,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 03:53:06,895 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 03:53:06,907 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 03:53:06,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 03:53:06,987 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 03:53:06,987 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-13 03:53:06,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-13 03:53:06,987 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-13 03:53:06,987 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-13 03:53:06,987 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2018-04-13 03:53:07,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 03:53:07,084 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2018-04-13 03:53:07,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-13 03:53:07,084 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2018-04-13 03:53:07,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 03:53:07,084 INFO L225 Difference]: With dead ends: 42 [2018-04-13 03:53:07,085 INFO L226 Difference]: Without dead ends: 42 [2018-04-13 03:53:07,085 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 [2018-04-13 03:53:07,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-04-13 03:53:07,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2018-04-13 03:53:07,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-04-13 03:53:07,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2018-04-13 03:53:07,089 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 17 [2018-04-13 03:53:07,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 03:53:07,089 INFO L459 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2018-04-13 03:53:07,090 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-13 03:53:07,090 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2018-04-13 03:53:07,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-13 03:53:07,090 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 03:53:07,090 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 03:53:07,090 INFO L408 AbstractCegarLoop]: === Iteration 6 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-13 03:53:07,091 INFO L82 PathProgramCache]: Analyzing trace with hash -883693913, now seen corresponding path program 1 times [2018-04-13 03:53:07,091 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 03:53:07,091 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 03:53:07,092 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:07,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 03:53:07,092 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 03:53:07,105 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 03:53:07,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 03:53:07,224 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 03:53:07,224 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 03:53:07,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 03:53:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 03:53:07,257 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 03:53:07,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 03:53:07,280 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 03:53:07,283 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 03:53:07,283 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 03:53:07,314 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-13 03:53:07,315 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-13 03:53:07,315 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 03:53:07,317 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 03:53:07,320 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 03:53:07,321 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-04-13 03:53:07,372 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 [2018-04-13 03:53:07,377 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 [2018-04-13 03:53:07,378 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 03:53:07,383 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 03:53:07,392 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-13 03:53:07,393 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:54 [2018-04-13 03:53:07,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 03:53:07,456 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-13 03:53:07,456 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2018-04-13 03:53:07,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-13 03:53:07,457 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-13 03:53:07,457 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2018-04-13 03:53:07,457 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand 17 states. [2018-04-13 03:53:07,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 03:53:07,801 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2018-04-13 03:53:07,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-13 03:53:07,802 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 17 [2018-04-13 03:53:07,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 03:53:07,803 INFO L225 Difference]: With dead ends: 47 [2018-04-13 03:53:07,803 INFO L226 Difference]: Without dead ends: 47 [2018-04-13 03:53:07,804 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=463, Unknown=0, NotChecked=0, Total=552 [2018-04-13 03:53:07,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-04-13 03:53:07,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 40. [2018-04-13 03:53:07,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-13 03:53:07,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2018-04-13 03:53:07,808 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 17 [2018-04-13 03:53:07,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 03:53:07,809 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2018-04-13 03:53:07,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-13 03:53:07,809 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-04-13 03:53:07,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-13 03:53:07,809 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 03:53:07,809 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 03:53:07,810 INFO L408 AbstractCegarLoop]: === Iteration 7 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-13 03:53:07,810 INFO L82 PathProgramCache]: Analyzing trace with hash 2024137186, now seen corresponding path program 2 times [2018-04-13 03:53:07,810 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 03:53:07,810 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 03:53:07,811 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:07,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 03:53:07,811 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 03:53:07,827 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 03:53:07,991 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 03:53:07,992 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 03:53:07,992 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 03:53:07,992 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-13 03:53:08,013 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-13 03:53:08,013 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 03:53:08,016 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 03:53:08,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 03:53:08,023 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 03:53:08,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 03:53:08,025 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 03:53:08,031 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-13 03:53:08,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-13 03:53:08,032 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 03:53:08,034 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 03:53:08,036 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 03:53:08,036 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-13 03:53:08,096 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 [2018-04-13 03:53:08,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-13 03:53:08,101 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 03:53:08,104 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 03:53:08,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-13 03:53:08,110 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:40 [2018-04-13 03:53:08,147 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 03:53:08,147 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-13 03:53:08,147 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 16 [2018-04-13 03:53:08,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-13 03:53:08,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-13 03:53:08,148 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2018-04-13 03:53:08,148 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 17 states. [2018-04-13 03:53:08,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 03:53:08,422 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2018-04-13 03:53:08,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-13 03:53:08,423 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 20 [2018-04-13 03:53:08,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 03:53:08,423 INFO L225 Difference]: With dead ends: 53 [2018-04-13 03:53:08,423 INFO L226 Difference]: Without dead ends: 53 [2018-04-13 03:53:08,424 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 [2018-04-13 03:53:08,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-13 03:53:08,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43. [2018-04-13 03:53:08,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-04-13 03:53:08,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2018-04-13 03:53:08,430 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 20 [2018-04-13 03:53:08,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 03:53:08,431 INFO L459 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2018-04-13 03:53:08,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-13 03:53:08,431 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2018-04-13 03:53:08,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-13 03:53:08,431 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 03:53:08,431 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] [2018-04-13 03:53:08,431 INFO L408 AbstractCegarLoop]: === Iteration 8 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-13 03:53:08,432 INFO L82 PathProgramCache]: Analyzing trace with hash 413064626, now seen corresponding path program 1 times [2018-04-13 03:53:08,432 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 03:53:08,432 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 03:53:08,432 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:08,432 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-13 03:53:08,433 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 03:53:08,442 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 03:53:08,446 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-13 03:53:08,446 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 03:53:08,446 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 03:53:08,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 03:53:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 03:53:08,460 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 03:53:08,471 INFO L700 Elim1Store]: detected not equals via solver [2018-04-13 03:53:08,472 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 [2018-04-13 03:53:08,473 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 03:53:08,474 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-13 03:53:08,474 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-13 03:53:08,487 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 [2018-04-13 03:53:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-13 03:53:08,489 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-13 03:53:08,489 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-13 03:53:08,490 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-13 03:53:08,490 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-13 03:53:08,490 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2018-04-13 03:53:08,490 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 6 states. [2018-04-13 03:53:08,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 03:53:08,524 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-04-13 03:53:08,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-13 03:53:08,524 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-04-13 03:53:08,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 03:53:08,524 INFO L225 Difference]: With dead ends: 42 [2018-04-13 03:53:08,524 INFO L226 Difference]: Without dead ends: 24 [2018-04-13 03:53:08,525 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 [2018-04-13 03:53:08,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-04-13 03:53:08,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-04-13 03:53:08,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-04-13 03:53:08,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-04-13 03:53:08,526 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2018-04-13 03:53:08,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 03:53:08,526 INFO L459 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-04-13 03:53:08,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-13 03:53:08,526 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-04-13 03:53:08,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-13 03:53:08,527 INFO L347 BasicCegarLoop]: Found error trace [2018-04-13 03:53:08,527 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-13 03:53:08,527 INFO L408 AbstractCegarLoop]: === Iteration 9 === [cstrlenErr1RequiresViolation, cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-13 03:53:08,527 INFO L82 PathProgramCache]: Analyzing trace with hash -269952825, now seen corresponding path program 3 times [2018-04-13 03:53:08,527 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-13 03:53:08,527 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-13 03:53:08,527 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:08,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-13 03:53:08,534 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-13 03:53:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-13 03:53:08,544 WARN L250 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-13 03:53:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-13 03:53:08,615 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-13 03:53:08,615 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-13 03:53:08,616 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-13 03:53:08,640 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-13 03:53:08,641 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-13 03:53:08,643 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-13 03:53:08,652 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-13 03:53:08,652 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-13 03:53:08,655 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 03:53:08,655 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-13 03:53:08,661 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-13 03:53:08,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-13 03:53:08,663 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-13 03:53:08,664 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-13 03:53:08,665 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-13 03:53:08,665 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-13 03:53:08,690 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 [2018-04-13 03:53:08,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-13 03:53:08,696 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-13 03:53:08,698 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-13 03:53:08,702 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-13 03:53:08,702 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:34 [2018-04-13 03:53:08,726 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-13 03:53:08,726 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-13 03:53:08,726 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2018-04-13 03:53:08,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-13 03:53:08,726 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-13 03:53:08,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-04-13 03:53:08,726 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 12 states. [2018-04-13 03:53:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-13 03:53:08,841 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-04-13 03:53:08,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-13 03:53:08,841 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2018-04-13 03:53:08,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-13 03:53:08,842 INFO L225 Difference]: With dead ends: 23 [2018-04-13 03:53:08,842 INFO L226 Difference]: Without dead ends: 0 [2018-04-13 03:53:08,842 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 [2018-04-13 03:53:08,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-13 03:53:08,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-13 03:53:08,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-13 03:53:08,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-13 03:53:08,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-04-13 03:53:08,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-13 03:53:08,843 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-13 03:53:08,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-13 03:53:08,843 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-13 03:53:08,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-13 03:53:08,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 03:53:08 BoogieIcfgContainer [2018-04-13 03:53:08,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-13 03:53:08,848 INFO L168 Benchmark]: Toolchain (without parser) took 3175.91 ms. Allocated memory was 403.7 MB in the beginning and 618.7 MB in the end (delta: 215.0 MB). Free memory was 338.9 MB in the beginning and 517.4 MB in the end (delta: -178.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 5.3 GB. [2018-04-13 03:53:08,849 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 403.7 MB. Free memory is still 365.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-13 03:53:08,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.86 ms. Allocated memory is still 403.7 MB. Free memory was 338.9 MB in the beginning and 315.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. [2018-04-13 03:53:08,849 INFO L168 Benchmark]: Boogie Preprocessor took 33.51 ms. Allocated memory is still 403.7 MB. Free memory was 315.1 MB in the beginning and 312.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-13 03:53:08,850 INFO L168 Benchmark]: RCFGBuilder took 354.87 ms. Allocated memory was 403.7 MB in the beginning and 596.6 MB in the end (delta: 192.9 MB). Free memory was 312.5 MB in the beginning and 536.5 MB in the end (delta: -224.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 5.3 GB. [2018-04-13 03:53:08,850 INFO L168 Benchmark]: TraceAbstraction took 2555.28 ms. Allocated memory was 596.6 MB in the beginning and 618.7 MB in the end (delta: 22.0 MB). Free memory was 536.5 MB in the beginning and 517.4 MB in the end (delta: 19.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 5.3 GB. [2018-04-13 03:53:08,852 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 403.7 MB. Free memory is still 365.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 228.86 ms. Allocated memory is still 403.7 MB. Free memory was 338.9 MB in the beginning and 315.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.51 ms. Allocated memory is still 403.7 MB. Free memory was 315.1 MB in the beginning and 312.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 354.87 ms. Allocated memory was 403.7 MB in the beginning and 596.6 MB in the end (delta: 192.9 MB). Free memory was 312.5 MB in the beginning and 536.5 MB in the end (delta: -224.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2555.28 ms. Allocated memory was 596.6 MB in the beginning and 618.7 MB in the end (delta: 22.0 MB). Free memory was 536.5 MB in the beginning and 517.4 MB in the end (delta: 19.1 MB). Peak memory consumption was 41.1 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, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 166 GetRequests, 58 SyntacticMatches, 10 SemanticMatches, 98 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.1s 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, 1.0s 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-0-2018-04-13_03-53-08-860.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-0-2018-04-13_03-53-08-860.csv Received shutdown request...