java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-12 06:13:25,867 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-12 06:13:25,868 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-12 06:13:25,880 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-12 06:13:25,880 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-12 06:13:25,881 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-12 06:13:25,882 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-12 06:13:25,883 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-12 06:13:25,885 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-12 06:13:25,885 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-12 06:13:25,886 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-12 06:13:25,886 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-12 06:13:25,887 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-12 06:13:25,888 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-12 06:13:25,889 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-12 06:13:25,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-12 06:13:25,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-12 06:13:25,893 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-12 06:13:25,894 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-12 06:13:25,895 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-12 06:13:25,897 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-12 06:13:25,901 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 [2018-04-12 06:13:25,922 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-12 06:13:25,922 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-12 06:13:25,923 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-12 06:13:25,923 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-12 06:13:25,923 INFO L133 SettingsManager]: * Use SBE=true [2018-04-12 06:13:25,924 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-12 06:13:25,924 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-12 06:13:25,924 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-12 06:13:25,924 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-12 06:13:25,924 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-12 06:13:25,924 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-12 06:13:25,924 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-12 06:13:25,924 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-12 06:13:25,924 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-12 06:13:25,925 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-12 06:13:25,925 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-12 06:13:25,925 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-12 06:13:25,925 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-12 06:13:25,925 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-12 06:13:25,925 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-12 06:13:25,925 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-12 06:13:25,925 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-12 06:13:25,925 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-12 06:13:25,926 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-12 06:13:25,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-12 06:13:25,960 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-12 06:13:25,963 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-12 06:13:25,964 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-12 06:13:25,965 INFO L276 PluginConnector]: CDTParser initialized [2018-04-12 06:13:25,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,264 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG784ba4f0d [2018-04-12 06:13:26,394 INFO L287 CDTParser]: IsIndexed: true [2018-04-12 06:13:26,394 INFO L288 CDTParser]: Found 1 translation units. [2018-04-12 06:13:26,395 INFO L168 CDTParser]: Scanning openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,402 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-12 06:13:26,403 INFO L215 ultiparseSymbolTable]: [2018-04-12 06:13:26,403 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-12 06:13:26,403 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,403 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,403 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,403 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspn ('cstrcspn') in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,403 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-12 06:13:26,403 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,404 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,404 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,404 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,404 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,404 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,404 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,404 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,404 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,404 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,404 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,405 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,405 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,405 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,405 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,405 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,405 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,405 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,405 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,405 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,405 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,406 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,407 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,408 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,409 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,410 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,410 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,410 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,410 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,410 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,410 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,410 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,410 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,410 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,410 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,410 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,411 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,411 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,411 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,411 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,411 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,411 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,411 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,411 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,411 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,411 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,411 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,412 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,412 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,412 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,412 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,412 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,412 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,412 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,412 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,412 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,412 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,412 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,413 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,413 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:26,425 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG784ba4f0d [2018-04-12 06:13:26,428 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-12 06:13:26,429 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-12 06:13:26,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-12 06:13:26,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-12 06:13:26,433 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-12 06:13:26,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 06:13:26" (1/1) ... [2018-04-12 06:13:26,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@700da2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 06:13:26, skipping insertion in model container [2018-04-12 06:13:26,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.04 06:13:26" (1/1) ... [2018-04-12 06:13:26,450 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 06:13:26,472 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-12 06:13:26,603 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 06:13:26,636 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-12 06:13:26,641 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-12 06:13:26,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 06:13:26 WrapperNode [2018-04-12 06:13:26,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-12 06:13:26,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-12 06:13:26,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-12 06:13:26,678 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-12 06:13:26,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 06:13:26" (1/1) ... [2018-04-12 06:13:26,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 06:13:26" (1/1) ... [2018-04-12 06:13:26,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 06:13:26" (1/1) ... [2018-04-12 06:13:26,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 06:13:26" (1/1) ... [2018-04-12 06:13:26,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 06:13:26" (1/1) ... [2018-04-12 06:13:26,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 06:13:26" (1/1) ... [2018-04-12 06:13:26,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 06:13:26" (1/1) ... [2018-04-12 06:13:26,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-12 06:13:26,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-12 06:13:26,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-12 06:13:26,725 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-12 06:13:26,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 06:13:26" (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 [2018-04-12 06:13:26,809 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-12 06:13:26,809 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-12 06:13:26,809 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-12 06:13:26,809 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-12 06:13:26,809 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspn [2018-04-12 06:13:26,809 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-12 06:13:26,809 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-12 06:13:26,809 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-12 06:13:26,809 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-12 06:13:26,809 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-12 06:13:26,810 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-12 06:13:26,811 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-12 06:13:26,812 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-12 06:13:26,813 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-12 06:13:26,814 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspn [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-12 06:13:26,815 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-12 06:13:26,816 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-12 06:13:26,816 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-12 06:13:26,816 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-12 06:13:26,816 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-12 06:13:26,816 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-12 06:13:27,089 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-12 06:13:27,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 06:13:27 BoogieIcfgContainer [2018-04-12 06:13:27,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-12 06:13:27,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-12 06:13:27,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-12 06:13:27,092 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-12 06:13:27,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.04 06:13:26" (1/3) ... [2018-04-12 06:13:27,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5befb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 06:13:27, skipping insertion in model container [2018-04-12 06:13:27,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.04 06:13:26" (2/3) ... [2018-04-12 06:13:27,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5befb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.04 06:13:27, skipping insertion in model container [2018-04-12 06:13:27,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.04 06:13:27" (3/3) ... [2018-04-12 06:13:27,094 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-04-12 06:13:27,099 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-12 06:13:27,104 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-12 06:13:27,131 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-12 06:13:27,131 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-12 06:13:27,131 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-12 06:13:27,132 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-12 06:13:27,132 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-12 06:13:27,132 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-12 06:13:27,132 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-12 06:13:27,132 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-12 06:13:27,132 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-12 06:13:27,132 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-12 06:13:27,141 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-04-12 06:13:27,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-12 06:13:27,148 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:27,148 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:27,149 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:27,151 INFO L82 PathProgramCache]: Analyzing trace with hash 233534974, now seen corresponding path program 1 times [2018-04-12 06:13:27,152 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:27,152 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:27,180 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:27,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:27,181 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:27,221 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:27,234 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-12 06:13:27,234 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 06:13:27,234 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-12 06:13:27,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:27,271 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 06:13:27,300 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 [2018-04-12 06:13:27,301 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:27,305 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:27,305 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-12 06:13:27,324 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:27,325 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:27,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-12 06:13:27,326 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:27,337 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. [2018-04-12 06:13:27,337 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-04-12 06:13:27,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:27,352 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 06:13:27,352 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-12 06:13:27,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-12 06:13:27,361 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-12 06:13:27,361 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-04-12 06:13:27,362 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2018-04-12 06:13:27,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:27,441 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2018-04-12 06:13:27,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-12 06:13:27,442 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-04-12 06:13:27,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:27,449 INFO L225 Difference]: With dead ends: 44 [2018-04-12 06:13:27,449 INFO L226 Difference]: Without dead ends: 41 [2018-04-12 06:13:27,450 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-04-12 06:13:27,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-12 06:13:27,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-04-12 06:13:27,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-12 06:13:27,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-04-12 06:13:27,473 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 13 [2018-04-12 06:13:27,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:27,474 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-04-12 06:13:27,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-12 06:13:27,474 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-04-12 06:13:27,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-04-12 06:13:27,474 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:27,474 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:27,474 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:27,474 INFO L82 PathProgramCache]: Analyzing trace with hash 233534975, now seen corresponding path program 1 times [2018-04-12 06:13:27,474 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:27,475 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:27,475 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:27,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:27,476 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:27,488 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:27,495 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-12 06:13:27,495 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 06:13:27,495 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-12 06:13:27,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:27,521 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 06:13:27,535 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 [2018-04-12 06:13:27,535 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:27,545 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 [2018-04-12 06:13:27,545 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:27,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:27,550 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-12 06:13:27,581 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:27,582 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:27,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-12 06:13:27,583 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:27,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-12 06:13:27,593 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:27,604 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:27,605 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-04-12 06:13:27,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:27,622 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 06:13:27,622 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-12 06:13:27,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 06:13:27,623 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 06:13:27,623 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-04-12 06:13:27,623 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 6 states. [2018-04-12 06:13:27,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:27,693 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-04-12 06:13:27,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 06:13:27,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-04-12 06:13:27,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:27,694 INFO L225 Difference]: With dead ends: 40 [2018-04-12 06:13:27,694 INFO L226 Difference]: Without dead ends: 40 [2018-04-12 06:13:27,695 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-04-12 06:13:27,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-12 06:13:27,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-04-12 06:13:27,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-12 06:13:27,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-04-12 06:13:27,699 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 13 [2018-04-12 06:13:27,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:27,700 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-04-12 06:13:27,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 06:13:27,700 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-04-12 06:13:27,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-12 06:13:27,700 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:27,700 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:27,701 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:27,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1350350365, now seen corresponding path program 1 times [2018-04-12 06:13:27,701 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:27,701 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:27,702 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:27,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:27,702 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:27,716 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:27,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:27,747 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 06:13:27,747 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-12 06:13:27,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-12 06:13:27,748 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-12 06:13:27,748 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-12 06:13:27,748 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 4 states. [2018-04-12 06:13:27,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:27,776 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-04-12 06:13:27,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-12 06:13:27,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-04-12 06:13:27,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:27,776 INFO L225 Difference]: With dead ends: 39 [2018-04-12 06:13:27,777 INFO L226 Difference]: Without dead ends: 39 [2018-04-12 06:13:27,777 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 [2018-04-12 06:13:27,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-04-12 06:13:27,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-04-12 06:13:27,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-12 06:13:27,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-04-12 06:13:27,779 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 14 [2018-04-12 06:13:27,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:27,779 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-04-12 06:13:27,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-12 06:13:27,779 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-04-12 06:13:27,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-12 06:13:27,779 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:27,779 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:27,779 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:27,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1350350364, now seen corresponding path program 1 times [2018-04-12 06:13:27,780 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:27,780 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:27,780 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:27,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:27,780 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:27,791 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:27,837 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 06:13:27,837 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-12 06:13:27,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-12 06:13:27,837 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-12 06:13:27,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-12 06:13:27,838 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 5 states. [2018-04-12 06:13:27,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:27,893 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2018-04-12 06:13:27,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 06:13:27,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-12 06:13:27,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:27,894 INFO L225 Difference]: With dead ends: 38 [2018-04-12 06:13:27,895 INFO L226 Difference]: Without dead ends: 38 [2018-04-12 06:13:27,895 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 [2018-04-12 06:13:27,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-04-12 06:13:27,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-04-12 06:13:27,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-04-12 06:13:27,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2018-04-12 06:13:27,899 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 14 [2018-04-12 06:13:27,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:27,899 INFO L459 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2018-04-12 06:13:27,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-12 06:13:27,899 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2018-04-12 06:13:27,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-12 06:13:27,900 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:27,900 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:27,900 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:27,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1574771629, now seen corresponding path program 1 times [2018-04-12 06:13:27,900 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:27,901 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:27,901 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:27,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:27,902 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:27,913 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:27,947 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 06:13:27,947 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-12 06:13:27,947 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-12 06:13:27,947 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-12 06:13:27,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-12 06:13:27,947 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 6 states. [2018-04-12 06:13:28,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:28,000 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-04-12 06:13:28,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-12 06:13:28,000 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-04-12 06:13:28,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:28,001 INFO L225 Difference]: With dead ends: 37 [2018-04-12 06:13:28,001 INFO L226 Difference]: Without dead ends: 37 [2018-04-12 06:13:28,001 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-12 06:13:28,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-04-12 06:13:28,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-04-12 06:13:28,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-04-12 06:13:28,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-04-12 06:13:28,003 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 19 [2018-04-12 06:13:28,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:28,003 INFO L459 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-04-12 06:13:28,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-12 06:13:28,003 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-04-12 06:13:28,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-12 06:13:28,004 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:28,004 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:28,004 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:28,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1574771628, now seen corresponding path program 1 times [2018-04-12 06:13:28,004 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:28,004 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:28,004 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:28,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:28,005 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:28,015 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:28,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:28,101 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 06:13:28,101 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-04-12 06:13:28,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-12 06:13:28,101 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-12 06:13:28,101 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-12 06:13:28,102 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 9 states. [2018-04-12 06:13:28,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:28,183 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-04-12 06:13:28,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-12 06:13:28,183 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-04-12 06:13:28,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:28,184 INFO L225 Difference]: With dead ends: 41 [2018-04-12 06:13:28,184 INFO L226 Difference]: Without dead ends: 41 [2018-04-12 06:13:28,184 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-04-12 06:13:28,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-04-12 06:13:28,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-04-12 06:13:28,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-04-12 06:13:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-04-12 06:13:28,187 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 19 [2018-04-12 06:13:28,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:28,187 INFO L459 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-04-12 06:13:28,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-12 06:13:28,188 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-04-12 06:13:28,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-12 06:13:28,188 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:28,188 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] [2018-04-12 06:13:28,188 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:28,188 INFO L82 PathProgramCache]: Analyzing trace with hash -93842083, now seen corresponding path program 1 times [2018-04-12 06:13:28,188 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:28,188 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:28,189 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:28,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:28,189 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:28,198 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:28,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:28,241 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 06:13:28,241 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-12 06:13:28,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-12 06:13:28,242 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-12 06:13:28,242 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-12 06:13:28,242 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 7 states. [2018-04-12 06:13:28,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:28,317 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-04-12 06:13:28,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-12 06:13:28,318 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-04-12 06:13:28,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:28,319 INFO L225 Difference]: With dead ends: 40 [2018-04-12 06:13:28,319 INFO L226 Difference]: Without dead ends: 40 [2018-04-12 06:13:28,319 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-12 06:13:28,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-04-12 06:13:28,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-04-12 06:13:28,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-04-12 06:13:28,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-04-12 06:13:28,322 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 22 [2018-04-12 06:13:28,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:28,323 INFO L459 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-04-12 06:13:28,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-12 06:13:28,323 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-04-12 06:13:28,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-12 06:13:28,323 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:28,324 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] [2018-04-12 06:13:28,324 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:28,324 INFO L82 PathProgramCache]: Analyzing trace with hash -93842082, now seen corresponding path program 1 times [2018-04-12 06:13:28,324 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:28,324 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:28,325 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:28,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:28,325 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:28,336 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:28,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:28,401 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 06:13:28,401 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-12 06:13:28,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-12 06:13:28,401 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-12 06:13:28,402 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-04-12 06:13:28,402 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 10 states. [2018-04-12 06:13:28,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:28,485 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2018-04-12 06:13:28,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-12 06:13:28,486 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-04-12 06:13:28,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:28,486 INFO L225 Difference]: With dead ends: 43 [2018-04-12 06:13:28,486 INFO L226 Difference]: Without dead ends: 43 [2018-04-12 06:13:28,487 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2018-04-12 06:13:28,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-04-12 06:13:28,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-04-12 06:13:28,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-04-12 06:13:28,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-04-12 06:13:28,489 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 22 [2018-04-12 06:13:28,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:28,489 INFO L459 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-04-12 06:13:28,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-12 06:13:28,490 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-04-12 06:13:28,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-12 06:13:28,490 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:28,490 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:28,490 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:28,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1165056638, now seen corresponding path program 1 times [2018-04-12 06:13:28,491 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:28,491 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:28,491 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:28,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:28,492 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:28,506 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:28,604 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:28,604 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 06:13:28,604 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-04-12 06:13:28,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-12 06:13:28,604 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-12 06:13:28,604 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-04-12 06:13:28,604 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 12 states. [2018-04-12 06:13:28,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:28,815 INFO L93 Difference]: Finished difference Result 79 states and 82 transitions. [2018-04-12 06:13:28,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-12 06:13:28,816 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2018-04-12 06:13:28,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:28,816 INFO L225 Difference]: With dead ends: 79 [2018-04-12 06:13:28,816 INFO L226 Difference]: Without dead ends: 79 [2018-04-12 06:13:28,817 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2018-04-12 06:13:28,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-12 06:13:28,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2018-04-12 06:13:28,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-12 06:13:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2018-04-12 06:13:28,821 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 27 [2018-04-12 06:13:28,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:28,821 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2018-04-12 06:13:28,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-12 06:13:28,821 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2018-04-12 06:13:28,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-04-12 06:13:28,822 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:28,822 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:28,822 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:28,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1982705088, now seen corresponding path program 1 times [2018-04-12 06:13:28,822 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:28,822 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:28,823 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:28,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:28,823 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:28,833 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:29,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:29,045 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 06:13:29,045 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-12 06:13:29,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:29,096 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 06:13:29,099 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 [2018-04-12 06:13:29,100 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:29,103 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:29,104 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 06:13:29,140 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 [2018-04-12 06:13:29,141 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 [2018-04-12 06:13:29,142 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:29,143 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:29,147 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:29,148 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-04-12 06:13:29,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2018-04-12 06:13:29,278 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 15 [2018-04-12 06:13:29,279 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 06:13:29,282 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 06:13:29,289 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 06:13:29,290 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:54 [2018-04-12 06:13:29,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:29,416 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 06:13:29,416 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2018-04-12 06:13:29,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-12 06:13:29,416 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-12 06:13:29,416 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2018-04-12 06:13:29,416 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 25 states. [2018-04-12 06:13:30,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:30,138 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2018-04-12 06:13:30,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-12 06:13:30,138 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 27 [2018-04-12 06:13:30,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:30,140 INFO L225 Difference]: With dead ends: 79 [2018-04-12 06:13:30,140 INFO L226 Difference]: Without dead ends: 79 [2018-04-12 06:13:30,141 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=194, Invalid=1212, Unknown=0, NotChecked=0, Total=1406 [2018-04-12 06:13:30,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-12 06:13:30,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 68. [2018-04-12 06:13:30,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-04-12 06:13:30,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2018-04-12 06:13:30,143 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 27 [2018-04-12 06:13:30,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:30,143 INFO L459 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2018-04-12 06:13:30,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-12 06:13:30,143 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2018-04-12 06:13:30,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-12 06:13:30,144 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:30,144 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:30,144 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:30,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1757089814, now seen corresponding path program 1 times [2018-04-12 06:13:30,144 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:30,144 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:30,145 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:30,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:30,145 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:30,152 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:30,154 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-12 06:13:30,155 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 06:13:30,155 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-12 06:13:30,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:30,182 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 06:13:30,186 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 [2018-04-12 06:13:30,186 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:30,191 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 [2018-04-12 06:13:30,191 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:30,194 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:30,194 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-12 06:13:30,206 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:30,207 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-12 06:13:30,208 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:30,215 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:30,215 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:30,216 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-12 06:13:30,216 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:30,220 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:30,220 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-12 06:13:30,238 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-12 06:13:30,251 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 [2018-04-12 06:13:30,252 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:30,253 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:30,260 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:30,261 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2018-04-12 06:13:30,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-12 06:13:30,285 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 [2018-04-12 06:13:30,286 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:30,290 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:30,296 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-12 06:13:30,296 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:39 [2018-04-12 06:13:30,405 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2018-04-12 06:13:30,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 1 [2018-04-12 06:13:30,408 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:30,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 15 [2018-04-12 06:13:30,420 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-12 06:13:30,423 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 06:13:30,433 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 06:13:30,433 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:56, output treesize:54 [2018-04-12 06:13:30,613 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:30,613 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-12 06:13:30,613 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-12 06:13:30,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-12 06:13:30,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-12 06:13:30,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2018-04-12 06:13:30,614 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 16 states. [2018-04-12 06:13:31,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:31,355 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2018-04-12 06:13:31,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-12 06:13:31,356 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 28 [2018-04-12 06:13:31,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:31,356 INFO L225 Difference]: With dead ends: 100 [2018-04-12 06:13:31,356 INFO L226 Difference]: Without dead ends: 100 [2018-04-12 06:13:31,357 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=747, Unknown=0, NotChecked=0, Total=870 [2018-04-12 06:13:31,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-04-12 06:13:31,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 93. [2018-04-12 06:13:31,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-04-12 06:13:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2018-04-12 06:13:31,361 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 28 [2018-04-12 06:13:31,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:31,361 INFO L459 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2018-04-12 06:13:31,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-12 06:13:31,361 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2018-04-12 06:13:31,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-12 06:13:31,362 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:31,362 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:31,362 INFO L408 AbstractCegarLoop]: === Iteration 12 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:31,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1220195187, now seen corresponding path program 1 times [2018-04-12 06:13:31,362 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:31,362 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:31,363 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:31,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:31,363 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:31,376 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:31,378 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-12 06:13:31,379 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 06:13:31,379 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-12 06:13:31,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:31,403 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 06:13:31,443 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:31,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-12 06:13:31,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-12 06:13:31,446 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:31,449 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:31,452 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-12 06:13:31,452 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-12 06:13:31,480 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-04-12 06:13:31,484 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-04-12 06:13:31,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:31,489 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-12 06:13:31,489 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-12 06:13:31,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-12 06:13:31,489 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-12 06:13:31,490 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=22, Unknown=2, NotChecked=18, Total=56 [2018-04-12 06:13:31,490 INFO L87 Difference]: Start difference. First operand 93 states and 106 transitions. Second operand 8 states. [2018-04-12 06:13:31,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:31,538 INFO L93 Difference]: Finished difference Result 92 states and 105 transitions. [2018-04-12 06:13:31,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-12 06:13:31,538 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-04-12 06:13:31,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:31,538 INFO L225 Difference]: With dead ends: 92 [2018-04-12 06:13:31,538 INFO L226 Difference]: Without dead ends: 82 [2018-04-12 06:13:31,539 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=30, Unknown=2, NotChecked=22, Total=72 [2018-04-12 06:13:31,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-12 06:13:31,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-04-12 06:13:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-04-12 06:13:31,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2018-04-12 06:13:31,541 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 32 [2018-04-12 06:13:31,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:31,542 INFO L459 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2018-04-12 06:13:31,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-12 06:13:31,542 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2018-04-12 06:13:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-12 06:13:31,542 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:31,542 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:31,542 INFO L408 AbstractCegarLoop]: === Iteration 13 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:31,542 INFO L82 PathProgramCache]: Analyzing trace with hash 567354848, now seen corresponding path program 2 times [2018-04-12 06:13:31,542 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:31,542 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:31,543 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:31,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-12 06:13:31,543 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:31,551 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:31,769 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:31,769 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 06:13:31,769 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-12 06:13:31,770 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-12 06:13:31,808 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-12 06:13:31,808 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 06:13:31,812 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 06:13:31,814 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 [2018-04-12 06:13:31,815 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:31,830 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:31,830 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 06:13:31,845 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 [2018-04-12 06:13:31,846 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 [2018-04-12 06:13:31,846 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:31,847 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:31,849 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:31,849 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-12 06:13:31,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-12 06:13:31,972 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 14 [2018-04-12 06:13:31,973 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 06:13:31,975 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 06:13:31,981 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 06:13:31,981 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:38 [2018-04-12 06:13:32,081 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:32,081 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 06:13:32,081 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2018-04-12 06:13:32,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-04-12 06:13:32,082 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-04-12 06:13:32,082 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2018-04-12 06:13:32,082 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 26 states. [2018-04-12 06:13:32,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:32,980 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2018-04-12 06:13:32,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-12 06:13:32,981 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 32 [2018-04-12 06:13:32,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:32,982 INFO L225 Difference]: With dead ends: 115 [2018-04-12 06:13:32,982 INFO L226 Difference]: Without dead ends: 115 [2018-04-12 06:13:32,982 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=251, Invalid=1555, Unknown=0, NotChecked=0, Total=1806 [2018-04-12 06:13:32,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-04-12 06:13:32,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 92. [2018-04-12 06:13:32,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-04-12 06:13:32,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 102 transitions. [2018-04-12 06:13:32,986 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 102 transitions. Word has length 32 [2018-04-12 06:13:32,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:32,987 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 102 transitions. [2018-04-12 06:13:32,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-04-12 06:13:32,987 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 102 transitions. [2018-04-12 06:13:32,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-12 06:13:32,988 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:32,988 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:32,988 INFO L408 AbstractCegarLoop]: === Iteration 14 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:32,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1824027372, now seen corresponding path program 2 times [2018-04-12 06:13:32,988 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:32,988 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:32,989 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:32,989 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-12 06:13:32,989 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:32,998 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:33,005 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-12 06:13:33,005 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 06:13:33,005 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-12 06:13:33,006 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-12 06:13:33,032 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-12 06:13:33,032 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 06:13:33,036 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 06:13:33,054 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 [2018-04-12 06:13:33,054 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:33,061 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 [2018-04-12 06:13:33,061 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:33,067 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:33,067 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-12 06:13:33,087 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:33,089 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-12 06:13:33,089 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:33,097 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:33,097 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:33,098 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-12 06:13:33,098 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:33,103 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:33,103 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-04-12 06:13:33,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-12 06:13:33,131 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 [2018-04-12 06:13:33,131 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:33,132 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:33,137 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:33,137 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2018-04-12 06:13:33,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-12 06:13:33,156 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 [2018-04-12 06:13:33,157 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:33,160 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:33,165 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-12 06:13:33,165 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:37 [2018-04-12 06:13:33,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2018-04-12 06:13:33,348 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 1 [2018-04-12 06:13:33,348 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:33,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 14 [2018-04-12 06:13:33,356 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-12 06:13:33,358 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 06:13:33,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 06:13:33,365 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:56, output treesize:46 [2018-04-12 06:13:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-12 06:13:33,524 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-12 06:13:33,524 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-04-12 06:13:33,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-12 06:13:33,524 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-12 06:13:33,525 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2018-04-12 06:13:33,525 INFO L87 Difference]: Start difference. First operand 92 states and 102 transitions. Second operand 20 states. [2018-04-12 06:13:34,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:34,270 INFO L93 Difference]: Finished difference Result 126 states and 138 transitions. [2018-04-12 06:13:34,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-12 06:13:34,270 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 37 [2018-04-12 06:13:34,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:34,271 INFO L225 Difference]: With dead ends: 126 [2018-04-12 06:13:34,271 INFO L226 Difference]: Without dead ends: 126 [2018-04-12 06:13:34,271 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=143, Invalid=1047, Unknown=0, NotChecked=0, Total=1190 [2018-04-12 06:13:34,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-04-12 06:13:34,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2018-04-12 06:13:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-04-12 06:13:34,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 136 transitions. [2018-04-12 06:13:34,274 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 136 transitions. Word has length 37 [2018-04-12 06:13:34,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:34,274 INFO L459 AbstractCegarLoop]: Abstraction has 122 states and 136 transitions. [2018-04-12 06:13:34,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-12 06:13:34,274 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 136 transitions. [2018-04-12 06:13:34,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-04-12 06:13:34,275 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:34,275 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:34,275 INFO L408 AbstractCegarLoop]: === Iteration 15 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:34,275 INFO L82 PathProgramCache]: Analyzing trace with hash -131754432, now seen corresponding path program 3 times [2018-04-12 06:13:34,275 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:34,275 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:34,276 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:34,276 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-12 06:13:34,276 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:34,282 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:34,437 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-12 06:13:34,437 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 06:13:34,438 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-12 06:13:34,438 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-12 06:13:34,481 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-12 06:13:34,481 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 06:13:34,484 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 06:13:34,487 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 [2018-04-12 06:13:34,488 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:34,491 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:34,491 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-12 06:13:34,499 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 [2018-04-12 06:13:34,500 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 [2018-04-12 06:13:34,500 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:34,512 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:34,513 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:34,513 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-12 06:13:34,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-12 06:13:34,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 14 [2018-04-12 06:13:34,568 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-12 06:13:34,570 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 06:13:34,573 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 06:13:34,574 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-12 06:13:34,616 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-12 06:13:34,616 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-12 06:13:34,616 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2018-04-12 06:13:34,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-04-12 06:13:34,617 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-04-12 06:13:34,617 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2018-04-12 06:13:34,617 INFO L87 Difference]: Start difference. First operand 122 states and 136 transitions. Second operand 17 states. [2018-04-12 06:13:34,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:34,940 INFO L93 Difference]: Finished difference Result 121 states and 133 transitions. [2018-04-12 06:13:34,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-04-12 06:13:34,941 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 37 [2018-04-12 06:13:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:34,941 INFO L225 Difference]: With dead ends: 121 [2018-04-12 06:13:34,941 INFO L226 Difference]: Without dead ends: 121 [2018-04-12 06:13:34,941 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=166, Invalid=646, Unknown=0, NotChecked=0, Total=812 [2018-04-12 06:13:34,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-04-12 06:13:34,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 85. [2018-04-12 06:13:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-04-12 06:13:34,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2018-04-12 06:13:34,944 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 37 [2018-04-12 06:13:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:34,944 INFO L459 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2018-04-12 06:13:34,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-04-12 06:13:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2018-04-12 06:13:34,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-12 06:13:34,944 INFO L347 BasicCegarLoop]: Found error trace [2018-04-12 06:13:34,945 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-12 06:13:34,945 INFO L408 AbstractCegarLoop]: === Iteration 16 === [mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr0RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrcspn_alloca_true_valid_memsafety_true_termination_i__cstrcspnErr3RequiresViolation]=== [2018-04-12 06:13:34,945 INFO L82 PathProgramCache]: Analyzing trace with hash 401743658, now seen corresponding path program 3 times [2018-04-12 06:13:34,945 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-12 06:13:34,945 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-12 06:13:34,945 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:34,945 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-12 06:13:34,945 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-12 06:13:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-12 06:13:34,955 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-12 06:13:34,969 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-12 06:13:34,969 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-12 06:13:34,969 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-12 06:13:34,970 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-12 06:13:35,005 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-12 06:13:35,005 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-12 06:13:35,010 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-12 06:13:35,021 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 [2018-04-12 06:13:35,021 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:35,028 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 [2018-04-12 06:13:35,028 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:35,033 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:35,033 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-12 06:13:35,051 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:35,051 INFO L700 Elim1Store]: detected not equals via solver [2018-04-12 06:13:35,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-12 06:13:35,052 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:35,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-12 06:13:35,061 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:35,068 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:35,068 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-12 06:13:35,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-12 06:13:35,096 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 [2018-04-12 06:13:35,096 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:35,098 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:35,102 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:35,102 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-12 06:13:35,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-04-12 06:13:35,122 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-12 06:13:35,122 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:35,127 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-12 06:13:35,133 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-12 06:13:35,133 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2018-04-12 06:13:35,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2018-04-12 06:13:35,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 1 [2018-04-12 06:13:35,237 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-12 06:13:35,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 14 [2018-04-12 06:13:35,250 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-12 06:13:35,254 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-12 06:13:35,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-12 06:13:35,263 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:45, output treesize:32 [2018-04-12 06:13:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-04-12 06:13:35,380 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-04-12 06:13:35,380 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-04-12 06:13:35,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-04-12 06:13:35,380 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-04-12 06:13:35,380 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2018-04-12 06:13:35,380 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 16 states. [2018-04-12 06:13:35,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-12 06:13:35,945 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions. [2018-04-12 06:13:35,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-04-12 06:13:35,946 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 46 [2018-04-12 06:13:35,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-12 06:13:35,946 INFO L225 Difference]: With dead ends: 93 [2018-04-12 06:13:35,946 INFO L226 Difference]: Without dead ends: 0 [2018-04-12 06:13:35,946 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2018-04-12 06:13:35,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-12 06:13:35,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-12 06:13:35,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-12 06:13:35,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-12 06:13:35,947 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2018-04-12 06:13:35,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-12 06:13:35,947 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-12 06:13:35,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-04-12 06:13:35,947 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-12 06:13:35,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-12 06:13:35,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.04 06:13:35 BoogieIcfgContainer [2018-04-12 06:13:35,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-12 06:13:35,950 INFO L168 Benchmark]: Toolchain (without parser) took 9522.03 ms. Allocated memory was 348.7 MB in the beginning and 702.0 MB in the end (delta: 353.4 MB). Free memory was 292.6 MB in the beginning and 664.5 MB in the end (delta: -371.8 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-12 06:13:35,951 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 348.7 MB. Free memory is still 318.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-12 06:13:35,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.53 ms. Allocated memory is still 348.7 MB. Free memory was 288.7 MB in the beginning and 264.8 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. [2018-04-12 06:13:35,952 INFO L168 Benchmark]: Boogie Preprocessor took 46.72 ms. Allocated memory is still 348.7 MB. Free memory was 264.8 MB in the beginning and 263.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-12 06:13:35,952 INFO L168 Benchmark]: RCFGBuilder took 364.73 ms. Allocated memory was 348.7 MB in the beginning and 462.4 MB in the end (delta: 113.8 MB). Free memory was 262.1 MB in the beginning and 398.2 MB in the end (delta: -136.1 MB). Peak memory consumption was 31.4 MB. Max. memory is 5.3 GB. [2018-04-12 06:13:35,952 INFO L168 Benchmark]: TraceAbstraction took 8859.65 ms. Allocated memory was 462.4 MB in the beginning and 702.0 MB in the end (delta: 239.6 MB). Free memory was 398.2 MB in the beginning and 664.5 MB in the end (delta: -266.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-12 06:13:35,954 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 348.7 MB. Free memory is still 318.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 248.53 ms. Allocated memory is still 348.7 MB. Free memory was 288.7 MB in the beginning and 264.8 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 46.72 ms. Allocated memory is still 348.7 MB. Free memory was 264.8 MB in the beginning and 263.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 364.73 ms. Allocated memory was 348.7 MB in the beginning and 462.4 MB in the end (delta: 113.8 MB). Free memory was 262.1 MB in the beginning and 398.2 MB in the end (delta: -136.1 MB). Peak memory consumption was 31.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 8859.65 ms. Allocated memory was 462.4 MB in the beginning and 702.0 MB in the end (delta: 239.6 MB). Free memory was 398.2 MB in the beginning and 664.5 MB in the end (delta: -266.2 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 565]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 566]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 554]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 565]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 549]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 51 locations, 9 error locations. SAFE Result, 8.8s OverallTime, 16 OverallIterations, 4 TraceHistogramMax, 4.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 457 SDtfs, 853 SDslu, 2317 SDs, 0 SdLazy, 2507 SolverSat, 171 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 459 GetRequests, 177 SyntacticMatches, 7 SemanticMatches, 275 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=14, 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, 16 MinimizatonAttempts, 101 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 667 NumberOfCodeBlocks, 667 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 479 ConstructedInterpolants, 66 QuantifiedInterpolants, 189015 SizeOfPredicates, 100 NumberOfNonLiveVariables, 1288 ConjunctsInSsa, 304 ConjunctsInUnsatCore, 19 InterpolantComputations, 10 PerfectInterpolantSequences, 33/120 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-12_06-13-35-958.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrcspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-12_06-13-35-958.csv Received shutdown request...