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_cstrlen-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 15:19:18,764 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 15:19:18,765 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 15:19:18,774 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 15:19:18,774 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 15:19:18,774 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 15:19:18,775 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 15:19:18,777 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 15:19:18,778 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 15:19:18,779 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 15:19:18,780 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 15:19:18,780 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 15:19:18,781 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 15:19:18,781 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 15:19:18,782 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 15:19:18,784 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 15:19:18,785 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 15:19:18,786 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 15:19:18,787 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 15:19:18,788 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 15:19:18,789 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 15:19:18,794 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-11 15:19:18,815 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 15:19:18,815 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 15:19:18,816 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 15:19:18,816 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 15:19:18,816 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 15:19:18,817 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 15:19:18,817 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 15:19:18,817 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 15:19:18,817 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 15:19:18,817 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 15:19:18,817 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 15:19:18,817 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 15:19:18,818 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 15:19:18,818 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 15:19:18,818 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 15:19:18,818 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 15:19:18,818 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 15:19:18,818 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 15:19:18,819 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 15:19:18,819 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 15:19:18,819 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 15:19:18,819 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 15:19:18,819 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 15:19:18,819 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 15:19:18,848 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 15:19:18,857 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 15:19:18,861 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 15:19:18,862 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 15:19:18,862 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 15:19:18,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,210 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG495557226 [2018-04-11 15:19:19,326 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 15:19:19,326 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 15:19:19,326 INFO L168 CDTParser]: Scanning openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,335 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 15:19:19,335 INFO L215 ultiparseSymbolTable]: [2018-04-11 15:19:19,335 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 15:19:19,335 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,335 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,335 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,335 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlen ('cstrlen') in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,336 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 15:19:19,336 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,336 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,336 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,336 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,336 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,336 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,336 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,336 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,336 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,337 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,337 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,337 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,337 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,337 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,337 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,337 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,337 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,337 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,337 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,338 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,338 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,338 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,338 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,338 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,338 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,338 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,338 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,338 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,339 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,339 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,339 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,339 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,339 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,339 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,339 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,339 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,339 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,339 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,340 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,340 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,340 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,340 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,340 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,340 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,340 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,340 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,340 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,340 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,341 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,342 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,342 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,342 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,342 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,342 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,342 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,342 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,342 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,342 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,342 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,343 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,343 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,343 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,343 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,343 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,343 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,343 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,343 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,343 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,343 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,344 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,344 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,344 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,344 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,344 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,344 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,344 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,344 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,344 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,344 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,345 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,346 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,347 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:19,359 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG495557226 [2018-04-11 15:19:19,362 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 15:19:19,363 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 15:19:19,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 15:19:19,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 15:19:19,367 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 15:19:19,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:19:19" (1/1) ... [2018-04-11 15:19:19,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b26816a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:19:19, skipping insertion in model container [2018-04-11 15:19:19,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:19:19" (1/1) ... [2018-04-11 15:19:19,386 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:19:19,409 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:19:19,553 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:19:19,585 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:19:19,591 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 15:19:19,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:19:19 WrapperNode [2018-04-11 15:19:19,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 15:19:19,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 15:19:19,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 15:19:19,628 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 15:19:19,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:19:19" (1/1) ... [2018-04-11 15:19:19,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:19:19" (1/1) ... [2018-04-11 15:19:19,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:19:19" (1/1) ... [2018-04-11 15:19:19,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:19:19" (1/1) ... [2018-04-11 15:19:19,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:19:19" (1/1) ... [2018-04-11 15:19:19,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:19:19" (1/1) ... [2018-04-11 15:19:19,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:19:19" (1/1) ... [2018-04-11 15:19:19,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 15:19:19,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 15:19:19,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 15:19:19,669 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 15:19:19,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:19:19" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 15:19:19,755 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 15:19:19,755 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 15:19:19,755 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 15:19:19,756 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 15:19:19,756 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlen [2018-04-11 15:19:19,756 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 15:19:19,756 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 15:19:19,756 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 15:19:19,756 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 15:19:19,756 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 15:19:19,756 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 15:19:19,756 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 15:19:19,756 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 15:19:19,756 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 15:19:19,756 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 15:19:19,756 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 15:19:19,757 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 15:19:19,757 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 15:19:19,757 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 15:19:19,757 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 15:19:19,757 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 15:19:19,757 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 15:19:19,757 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 15:19:19,757 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 15:19:19,757 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 15:19:19,758 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 15:19:19,758 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 15:19:19,758 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 15:19:19,758 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 15:19:19,758 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 15:19:19,758 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 15:19:19,758 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 15:19:19,758 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 15:19:19,759 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 15:19:19,759 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 15:19:19,759 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 15:19:19,759 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 15:19:19,759 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 15:19:19,759 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 15:19:19,759 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 15:19:19,759 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 15:19:19,759 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 15:19:19,760 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 15:19:19,760 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 15:19:19,760 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 15:19:19,760 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 15:19:19,760 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 15:19:19,760 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 15:19:19,760 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 15:19:19,760 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 15:19:19,760 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 15:19:19,760 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 15:19:19,761 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 15:19:19,761 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 15:19:19,761 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 15:19:19,761 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 15:19:19,761 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 15:19:19,761 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 15:19:19,761 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 15:19:19,761 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 15:19:19,761 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 15:19:19,762 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 15:19:19,762 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 15:19:19,762 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 15:19:19,762 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 15:19:19,762 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 15:19:19,762 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 15:19:19,762 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 15:19:19,762 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 15:19:19,762 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 15:19:19,762 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 15:19:19,763 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 15:19:19,763 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 15:19:19,763 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 15:19:19,763 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 15:19:19,763 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 15:19:19,763 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 15:19:19,763 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 15:19:19,763 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 15:19:19,763 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 15:19:19,763 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 15:19:19,764 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 15:19:19,764 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 15:19:19,764 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 15:19:19,764 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 15:19:19,764 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 15:19:19,764 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 15:19:19,764 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 15:19:19,764 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 15:19:19,765 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 15:19:19,765 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 15:19:19,765 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 15:19:19,765 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 15:19:19,765 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 15:19:19,765 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 15:19:19,765 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 15:19:19,765 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 15:19:19,765 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 15:19:19,765 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 15:19:19,765 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 15:19:19,766 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 15:19:19,766 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 15:19:19,766 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 15:19:19,766 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 15:19:19,766 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 15:19:19,766 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 15:19:19,766 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 15:19:19,766 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 15:19:19,766 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 15:19:19,766 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlen [2018-04-11 15:19:19,767 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 15:19:19,767 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 15:19:19,767 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 15:19:19,767 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 15:19:19,767 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 15:19:19,767 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 15:19:19,767 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 15:19:19,767 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 15:19:20,057 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 15:19:20,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:19:20 BoogieIcfgContainer [2018-04-11 15:19:20,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 15:19:20,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 15:19:20,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 15:19:20,060 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 15:19:20,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 03:19:19" (1/3) ... [2018-04-11 15:19:20,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe059d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:19:20, skipping insertion in model container [2018-04-11 15:19:20,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:19:19" (2/3) ... [2018-04-11 15:19:20,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe059d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:19:20, skipping insertion in model container [2018-04-11 15:19:20,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:19:20" (3/3) ... [2018-04-11 15:19:20,063 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:19:20,069 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 15:19:20,075 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-04-11 15:19:20,100 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 15:19:20,100 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 15:19:20,100 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 15:19:20,100 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 15:19:20,100 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 15:19:20,100 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 15:19:20,100 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 15:19:20,101 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 15:19:20,101 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 15:19:20,101 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 15:19:20,109 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-04-11 15:19:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-11 15:19:20,117 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:19:20,117 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:19:20,118 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:19:20,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1666854936, now seen corresponding path program 1 times [2018-04-11 15:19:20,121 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:19:20,122 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:19:20,150 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:20,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:19:20,150 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:19:20,185 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:19:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:19:20,231 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:19:20,231 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 15:19:20,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 15:19:20,240 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 15:19:20,241 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 15:19:20,243 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 4 states. [2018-04-11 15:19:20,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:19:20,295 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2018-04-11 15:19:20,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 15:19:20,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-04-11 15:19:20,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:19:20,302 INFO L225 Difference]: With dead ends: 30 [2018-04-11 15:19:20,302 INFO L226 Difference]: Without dead ends: 27 [2018-04-11 15:19:20,303 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:19:20,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-04-11 15:19:20,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-04-11 15:19:20,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-04-11 15:19:20,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-04-11 15:19:20,325 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 10 [2018-04-11 15:19:20,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:19:20,325 INFO L459 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-04-11 15:19:20,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 15:19:20,325 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-04-11 15:19:20,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-04-11 15:19:20,325 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:19:20,325 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:19:20,325 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:19:20,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1666854937, now seen corresponding path program 1 times [2018-04-11 15:19:20,326 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:19:20,326 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:19:20,326 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:20,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:19:20,327 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:19:20,335 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:19:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:19:20,409 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:19:20,409 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 15:19:20,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 15:19:20,411 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 15:19:20,411 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:19:20,411 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 5 states. [2018-04-11 15:19:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:19:20,439 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-04-11 15:19:20,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:19:20,439 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-04-11 15:19:20,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:19:20,440 INFO L225 Difference]: With dead ends: 26 [2018-04-11 15:19:20,440 INFO L226 Difference]: Without dead ends: 26 [2018-04-11 15:19:20,441 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:19:20,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-04-11 15:19:20,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-04-11 15:19:20,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-04-11 15:19:20,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-04-11 15:19:20,444 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 10 [2018-04-11 15:19:20,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:19:20,444 INFO L459 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-04-11 15:19:20,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 15:19:20,444 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-04-11 15:19:20,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 15:19:20,445 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:19:20,445 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:19:20,445 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:19:20,445 INFO L82 PathProgramCache]: Analyzing trace with hash -870578270, now seen corresponding path program 1 times [2018-04-11 15:19:20,445 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:19:20,446 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:19:20,446 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:20,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:19:20,447 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:19:20,458 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:19:20,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:19:20,500 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:19:20,500 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 15:19:20,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 15:19:20,501 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 15:19:20,501 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:19:20,501 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 5 states. [2018-04-11 15:19:20,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:19:20,536 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-04-11 15:19:20,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 15:19:20,537 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-04-11 15:19:20,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:19:20,537 INFO L225 Difference]: With dead ends: 25 [2018-04-11 15:19:20,537 INFO L226 Difference]: Without dead ends: 25 [2018-04-11 15:19:20,537 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:19:20,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-04-11 15:19:20,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-04-11 15:19:20,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-04-11 15:19:20,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-04-11 15:19:20,539 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 14 [2018-04-11 15:19:20,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:19:20,540 INFO L459 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-04-11 15:19:20,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 15:19:20,540 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-04-11 15:19:20,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-04-11 15:19:20,540 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:19:20,540 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:19:20,540 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:19:20,541 INFO L82 PathProgramCache]: Analyzing trace with hash -870578269, now seen corresponding path program 1 times [2018-04-11 15:19:20,541 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:19:20,541 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:19:20,542 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:20,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:19:20,542 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:19:20,553 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:19:20,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:19:20,629 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:19:20,629 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 15:19:20,629 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 15:19:20,629 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 15:19:20,629 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-04-11 15:19:20,630 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 8 states. [2018-04-11 15:19:20,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:19:20,737 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2018-04-11 15:19:20,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 15:19:20,738 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-04-11 15:19:20,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:19:20,740 INFO L225 Difference]: With dead ends: 32 [2018-04-11 15:19:20,741 INFO L226 Difference]: Without dead ends: 32 [2018-04-11 15:19:20,741 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-04-11 15:19:20,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-04-11 15:19:20,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2018-04-11 15:19:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-04-11 15:19:20,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-04-11 15:19:20,745 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 14 [2018-04-11 15:19:20,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:19:20,745 INFO L459 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-04-11 15:19:20,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 15:19:20,745 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-04-11 15:19:20,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 15:19:20,746 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:19:20,746 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:19:20,746 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:19:20,746 INFO L82 PathProgramCache]: Analyzing trace with hash -911327578, now seen corresponding path program 1 times [2018-04-11 15:19:20,746 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:19:20,746 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:19:20,747 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:20,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:19:20,747 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:19:20,762 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:19:20,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:19:20,851 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:19:20,851 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-04-11 15:19:20,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-11 15:19:20,852 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-11 15:19:20,852 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-11 15:19:20,852 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2018-04-11 15:19:20,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:19:20,939 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-04-11 15:19:20,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-11 15:19:20,939 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-04-11 15:19:20,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:19:20,939 INFO L225 Difference]: With dead ends: 43 [2018-04-11 15:19:20,939 INFO L226 Difference]: Without dead ends: 43 [2018-04-11 15:19:20,940 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-04-11 15:19:20,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-04-11 15:19:20,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2018-04-11 15:19:20,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-04-11 15:19:20,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2018-04-11 15:19:20,942 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 18 [2018-04-11 15:19:20,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:19:20,942 INFO L459 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2018-04-11 15:19:20,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-11 15:19:20,943 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2018-04-11 15:19:20,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-04-11 15:19:20,943 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:19:20,944 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:19:20,944 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:19:20,944 INFO L82 PathProgramCache]: Analyzing trace with hash -653162140, now seen corresponding path program 1 times [2018-04-11 15:19:20,944 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:19:20,944 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:19:20,945 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:20,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:19:20,945 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:19:20,957 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:19:21,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:19:21,118 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:19:21,118 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:19:21,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:19:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:19:21,153 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:19:21,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:19:21,181 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:19:21,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:19:21,183 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:19:21,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 15:19:21,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:19:21,211 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:19:21,212 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:19:21,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:19:21,231 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-04-11 15:19:21,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-04-11 15:19:21,298 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 15:19:21,298 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:19:21,308 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:19:21,316 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:19:21,317 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:54 [2018-04-11 15:19:21,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:19:21,450 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:19:21,450 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2018-04-11 15:19:21,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 15:19:21,451 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 15:19:21,451 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2018-04-11 15:19:21,451 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 18 states. [2018-04-11 15:19:21,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:19:21,753 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2018-04-11 15:19:21,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 15:19:21,754 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2018-04-11 15:19:21,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:19:21,754 INFO L225 Difference]: With dead ends: 50 [2018-04-11 15:19:21,754 INFO L226 Difference]: Without dead ends: 50 [2018-04-11 15:19:21,755 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2018-04-11 15:19:21,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-04-11 15:19:21,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2018-04-11 15:19:21,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-04-11 15:19:21,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2018-04-11 15:19:21,757 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 18 [2018-04-11 15:19:21,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:19:21,758 INFO L459 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2018-04-11 15:19:21,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 15:19:21,758 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-04-11 15:19:21,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 15:19:21,758 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:19:21,758 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:19:21,758 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:19:21,759 INFO L82 PathProgramCache]: Analyzing trace with hash -739684335, now seen corresponding path program 1 times [2018-04-11 15:19:21,759 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:19:21,759 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:19:21,759 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:21,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:19:21,759 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:19:21,775 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:19:21,781 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:19:21,781 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:19:21,781 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:19:21,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:19:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:19:21,808 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:19:21,820 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:19:21,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-11 15:19:21,821 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:19:21,823 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 15:19:21,823 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 15:19:21,846 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc5.base| Int)) (and (= |c_#valid| (store |c_old(#valid)| |main_#t~malloc5.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc5.base|)))) is different from true [2018-04-11 15:19:21,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:19:21,850 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:19:21,850 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 15:19:21,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 15:19:21,851 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 15:19:21,851 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2018-04-11 15:19:21,851 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 6 states. [2018-04-11 15:19:21,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:19:21,893 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2018-04-11 15:19:21,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:19:21,893 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-04-11 15:19:21,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:19:21,893 INFO L225 Difference]: With dead ends: 41 [2018-04-11 15:19:21,894 INFO L226 Difference]: Without dead ends: 23 [2018-04-11 15:19:21,894 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=28, Unknown=1, NotChecked=10, Total=56 [2018-04-11 15:19:21,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-04-11 15:19:21,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-04-11 15:19:21,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-04-11 15:19:21,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-04-11 15:19:21,896 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 22 [2018-04-11 15:19:21,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:19:21,896 INFO L459 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-04-11 15:19:21,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 15:19:21,896 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-04-11 15:19:21,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 15:19:21,897 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:19:21,897 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:19:21,897 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:19:21,897 INFO L82 PathProgramCache]: Analyzing trace with hash 2023421927, now seen corresponding path program 2 times [2018-04-11 15:19:21,897 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:19:21,897 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:19:21,898 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:21,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:19:21,898 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:19:21,907 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:19:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:19:22,079 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:19:22,079 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:19:22,080 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 15:19:22,100 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 15:19:22,101 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:19:22,103 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:19:22,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:19:22,108 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:19:22,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:19:22,110 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:19:22,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 15:19:22,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-04-11 15:19:22,120 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:19:22,121 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:19:22,123 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:19:22,123 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-11 15:19:22,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 15:19:22,191 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 15:19:22,192 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:19:22,194 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:19:22,200 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:19:22,200 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:40 [2018-04-11 15:19:22,332 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:19:22,332 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:19:22,332 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2018-04-11 15:19:22,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-04-11 15:19:22,332 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-04-11 15:19:22,333 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2018-04-11 15:19:22,333 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 19 states. [2018-04-11 15:19:22,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:19:22,602 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-04-11 15:19:22,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 15:19:22,603 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2018-04-11 15:19:22,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:19:22,603 INFO L225 Difference]: With dead ends: 29 [2018-04-11 15:19:22,603 INFO L226 Difference]: Without dead ends: 29 [2018-04-11 15:19:22,604 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2018-04-11 15:19:22,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-04-11 15:19:22,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-04-11 15:19:22,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-04-11 15:19:22,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-04-11 15:19:22,605 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 22 [2018-04-11 15:19:22,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:19:22,605 INFO L459 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-04-11 15:19:22,605 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-04-11 15:19:22,605 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-04-11 15:19:22,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-04-11 15:19:22,606 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:19:22,606 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:19:22,606 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrlen_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:19:22,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1089694954, now seen corresponding path program 3 times [2018-04-11 15:19:22,606 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:19:22,606 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:19:22,607 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:22,607 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 15:19:22,607 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:19:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:19:22,612 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:19:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 15:19:22,710 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:19:22,710 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:19:22,710 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 15:19:22,733 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-11 15:19:22,734 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:19:22,736 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:19:22,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 15:19:22,748 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:19:22,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:19:22,752 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:19:22,758 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 15:19:22,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 15:19:22,760 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:19:22,761 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:19:22,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:19:22,762 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-11 15:19:22,805 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 15:19:22,812 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-04-11 15:19:22,812 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:19:22,816 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:19:22,822 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:19:22,822 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:34 [2018-04-11 15:19:22,856 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-04-11 15:19:22,857 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:19:22,857 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 12 [2018-04-11 15:19:22,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-04-11 15:19:22,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-04-11 15:19:22,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-04-11 15:19:22,857 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 13 states. [2018-04-11 15:19:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:19:23,040 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-04-11 15:19:23,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 15:19:23,040 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2018-04-11 15:19:23,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:19:23,041 INFO L225 Difference]: With dead ends: 26 [2018-04-11 15:19:23,041 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 15:19:23,041 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 7 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2018-04-11 15:19:23,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 15:19:23,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 15:19:23,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 15:19:23,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 15:19:23,042 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-04-11 15:19:23,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:19:23,042 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 15:19:23,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-04-11 15:19:23,042 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 15:19:23,042 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 15:19:23,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 03:19:23 BoogieIcfgContainer [2018-04-11 15:19:23,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 15:19:23,046 INFO L168 Benchmark]: Toolchain (without parser) took 3683.37 ms. Allocated memory was 403.2 MB in the beginning and 644.3 MB in the end (delta: 241.2 MB). Free memory was 335.6 MB in the beginning and 607.9 MB in the end (delta: -272.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 15:19:23,047 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 403.2 MB. Free memory is still 363.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 15:19:23,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.09 ms. Allocated memory is still 403.2 MB. Free memory was 334.3 MB in the beginning and 310.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. [2018-04-11 15:19:23,047 INFO L168 Benchmark]: Boogie Preprocessor took 40.85 ms. Allocated memory is still 403.2 MB. Free memory was 310.5 MB in the beginning and 307.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 15:19:23,047 INFO L168 Benchmark]: RCFGBuilder took 389.01 ms. Allocated memory was 403.2 MB in the beginning and 591.9 MB in the end (delta: 188.7 MB). Free memory was 307.9 MB in the beginning and 531.1 MB in the end (delta: -223.2 MB). Peak memory consumption was 24.4 MB. Max. memory is 5.3 GB. [2018-04-11 15:19:23,048 INFO L168 Benchmark]: TraceAbstraction took 2986.90 ms. Allocated memory was 591.9 MB in the beginning and 644.3 MB in the end (delta: 52.4 MB). Free memory was 531.1 MB in the beginning and 607.9 MB in the end (delta: -76.7 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 15:19:23,049 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 403.2 MB. Free memory is still 363.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 264.09 ms. Allocated memory is still 403.2 MB. Free memory was 334.3 MB in the beginning and 310.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.85 ms. Allocated memory is still 403.2 MB. Free memory was 310.5 MB in the beginning and 307.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 389.01 ms. Allocated memory was 403.2 MB in the beginning and 591.9 MB in the end (delta: 188.7 MB). Free memory was 307.9 MB in the beginning and 531.1 MB in the end (delta: -223.2 MB). Peak memory consumption was 24.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2986.90 ms. Allocated memory was 591.9 MB in the beginning and 644.3 MB in the end (delta: 52.4 MB). Free memory was 531.1 MB in the beginning and 607.9 MB in the end (delta: -76.7 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 554]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 554]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 5 error locations. SAFE Result, 2.9s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 166 SDtfs, 240 SDslu, 607 SDs, 0 SdLazy, 581 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 62 SyntacticMatches, 11 SemanticMatches, 105 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 20 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 242 NumberOfCodeBlocks, 242 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 208 ConstructedInterpolants, 12 QuantifiedInterpolants, 34005 SizeOfPredicates, 24 NumberOfNonLiveVariables, 347 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 14/58 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_cstrlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_15-19-23-056.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_15-19-23-056.csv Received shutdown request...