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_cstrnlen-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 15:22:50,744 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 15:22:50,745 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 15:22:50,755 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 15:22:50,755 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 15:22:50,755 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 15:22:50,756 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 15:22:50,757 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 15:22:50,758 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 15:22:50,759 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 15:22:50,760 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 15:22:50,760 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 15:22:50,761 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 15:22:50,762 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 15:22:50,762 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 15:22:50,764 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 15:22:50,765 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 15:22:50,767 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 15:22:50,768 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 15:22:50,769 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 15:22:50,770 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-04-11 15:22:50,774 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 15:22:50,775 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 15:22:50,775 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 15:22:50,795 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 15:22:50,796 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 15:22:50,797 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 15:22:50,797 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 15:22:50,797 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 15:22:50,797 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 15:22:50,797 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 15:22:50,798 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 15:22:50,798 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 15:22:50,798 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 15:22:50,798 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 15:22:50,798 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 15:22:50,798 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 15:22:50,798 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 15:22:50,799 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 15:22:50,799 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 15:22:50,799 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 15:22:50,799 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 15:22:50,799 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 15:22:50,799 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 15:22:50,800 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 15:22:50,800 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 15:22:50,800 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 15:22:50,800 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 15:22:50,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 15:22:50,841 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 15:22:50,847 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 15:22:50,849 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 15:22:50,849 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 15:22:50,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,131 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG2be9c2fe2 [2018-04-11 15:22:51,269 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 15:22:51,269 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 15:22:51,270 INFO L168 CDTParser]: Scanning openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,277 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 15:22:51,277 INFO L215 ultiparseSymbolTable]: [2018-04-11 15:22:51,277 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 15:22:51,277 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,278 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,278 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,278 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlen ('cstrnlen') in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,278 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 15:22:51,278 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,278 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,278 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,278 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,278 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,279 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,280 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,281 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,282 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,283 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,284 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,285 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,286 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,286 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,286 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,286 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,286 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,286 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,286 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,286 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,286 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,286 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,286 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,287 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,287 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,287 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,300 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG2be9c2fe2 [2018-04-11 15:22:51,304 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 15:22:51,304 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 15:22:51,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 15:22:51,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 15:22:51,308 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 15:22:51,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:22:51" (1/1) ... [2018-04-11 15:22:51,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7451d7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:22:51, skipping insertion in model container [2018-04-11 15:22:51,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 03:22:51" (1/1) ... [2018-04-11 15:22:51,325 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:22:51,347 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 15:22:51,474 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:22:51,508 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 15:22:51,513 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 15:22:51,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:22:51 WrapperNode [2018-04-11 15:22:51,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 15:22:51,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 15:22:51,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 15:22:51,543 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 15:22:51,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:22:51" (1/1) ... [2018-04-11 15:22:51,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:22:51" (1/1) ... [2018-04-11 15:22:51,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:22:51" (1/1) ... [2018-04-11 15:22:51,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:22:51" (1/1) ... [2018-04-11 15:22:51,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:22:51" (1/1) ... [2018-04-11 15:22:51,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:22:51" (1/1) ... [2018-04-11 15:22:51,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:22:51" (1/1) ... [2018-04-11 15:22:51,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 15:22:51,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 15:22:51,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 15:22:51,577 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 15:22:51,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:22:51" (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 15:22:51,666 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 15:22:51,666 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 15:22:51,666 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 15:22:51,667 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 15:22:51,667 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlen [2018-04-11 15:22:51,667 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 15:22:51,667 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 15:22:51,667 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 15:22:51,667 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 15:22:51,667 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 15:22:51,667 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 15:22:51,667 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 15:22:51,667 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 15:22:51,668 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 15:22:51,668 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 15:22:51,668 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 15:22:51,668 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 15:22:51,668 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 15:22:51,668 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 15:22:51,668 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 15:22:51,668 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 15:22:51,668 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 15:22:51,668 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 15:22:51,669 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 15:22:51,669 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 15:22:51,669 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 15:22:51,669 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 15:22:51,669 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 15:22:51,669 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 15:22:51,669 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 15:22:51,669 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 15:22:51,669 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 15:22:51,669 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 15:22:51,670 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 15:22:51,670 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 15:22:51,670 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 15:22:51,670 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 15:22:51,670 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 15:22:51,670 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 15:22:51,670 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 15:22:51,670 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 15:22:51,670 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 15:22:51,671 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 15:22:51,672 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 15:22:51,672 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 15:22:51,672 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 15:22:51,672 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 15:22:51,672 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 15:22:51,672 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 15:22:51,672 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 15:22:51,672 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 15:22:51,672 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 15:22:51,672 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 15:22:51,672 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 15:22:51,672 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 15:22:51,673 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 15:22:51,674 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 15:22:51,675 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 15:22:51,675 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 15:22:51,675 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 15:22:51,675 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 15:22:51,675 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 15:22:51,675 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 15:22:51,675 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 15:22:51,675 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 15:22:51,675 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 15:22:51,675 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 15:22:51,675 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 15:22:51,675 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 15:22:51,676 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 15:22:51,676 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 15:22:51,676 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 15:22:51,676 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlen [2018-04-11 15:22:51,676 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 15:22:51,676 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 15:22:51,676 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 15:22:51,676 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 15:22:51,676 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 15:22:51,676 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 15:22:51,676 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 15:22:51,676 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 15:22:51,938 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 15:22:51,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:22:51 BoogieIcfgContainer [2018-04-11 15:22:51,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 15:22:51,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 15:22:51,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 15:22:51,941 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 15:22:51,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 03:22:51" (1/3) ... [2018-04-11 15:22:51,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c59afde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:22:51, skipping insertion in model container [2018-04-11 15:22:51,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 03:22:51" (2/3) ... [2018-04-11 15:22:51,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c59afde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 03:22:51, skipping insertion in model container [2018-04-11 15:22:51,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 03:22:51" (3/3) ... [2018-04-11 15:22:51,944 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i [2018-04-11 15:22:51,951 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 15:22:51,957 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-04-11 15:22:51,992 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 15:22:51,992 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 15:22:51,993 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 15:22:51,993 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 15:22:51,993 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 15:22:51,993 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 15:22:51,993 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 15:22:51,993 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 15:22:51,993 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 15:22:51,994 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 15:22:52,002 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-04-11 15:22:52,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-11 15:22:52,008 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:52,009 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:52,009 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:52,012 INFO L82 PathProgramCache]: Analyzing trace with hash 954163944, now seen corresponding path program 1 times [2018-04-11 15:22:52,013 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:52,014 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:52,043 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:52,043 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:52,078 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:52,118 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 15:22:52,120 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:22:52,120 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 15:22:52,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 15:22:52,129 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 15:22:52,130 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 15:22:52,131 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 4 states. [2018-04-11 15:22:52,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:52,169 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-04-11 15:22:52,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 15:22:52,170 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-04-11 15:22:52,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:52,176 INFO L225 Difference]: With dead ends: 33 [2018-04-11 15:22:52,176 INFO L226 Difference]: Without dead ends: 30 [2018-04-11 15:22:52,177 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 15:22:52,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-04-11 15:22:52,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-04-11 15:22:52,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-04-11 15:22:52,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2018-04-11 15:22:52,197 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 11 [2018-04-11 15:22:52,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:52,197 INFO L459 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2018-04-11 15:22:52,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 15:22:52,198 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2018-04-11 15:22:52,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-11 15:22:52,198 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:52,198 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:52,198 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:52,198 INFO L82 PathProgramCache]: Analyzing trace with hash 954163945, now seen corresponding path program 1 times [2018-04-11 15:22:52,198 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:52,198 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:52,199 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:52,199 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:52,211 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:52,268 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 15:22:52,268 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:22:52,268 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 15:22:52,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 15:22:52,270 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 15:22:52,270 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:22:52,270 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 5 states. [2018-04-11 15:22:52,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:52,295 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-04-11 15:22:52,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:22:52,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-04-11 15:22:52,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:52,296 INFO L225 Difference]: With dead ends: 29 [2018-04-11 15:22:52,296 INFO L226 Difference]: Without dead ends: 29 [2018-04-11 15:22:52,297 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 15:22:52,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-04-11 15:22:52,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-04-11 15:22:52,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-04-11 15:22:52,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2018-04-11 15:22:52,300 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 11 [2018-04-11 15:22:52,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:52,300 INFO L459 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2018-04-11 15:22:52,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 15:22:52,300 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2018-04-11 15:22:52,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-11 15:22:52,301 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:52,301 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:52,301 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:52,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1122690971, now seen corresponding path program 1 times [2018-04-11 15:22:52,301 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:52,301 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:52,302 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:52,302 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:52,317 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:52,353 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 15:22:52,353 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:22:52,353 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 15:22:52,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 15:22:52,354 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 15:22:52,354 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 15:22:52,354 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 5 states. [2018-04-11 15:22:52,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:52,397 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2018-04-11 15:22:52,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 15:22:52,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-04-11 15:22:52,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:52,398 INFO L225 Difference]: With dead ends: 28 [2018-04-11 15:22:52,398 INFO L226 Difference]: Without dead ends: 28 [2018-04-11 15:22:52,398 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 15:22:52,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-04-11 15:22:52,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-04-11 15:22:52,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-04-11 15:22:52,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2018-04-11 15:22:52,400 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 16 [2018-04-11 15:22:52,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:52,400 INFO L459 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2018-04-11 15:22:52,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 15:22:52,400 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2018-04-11 15:22:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-11 15:22:52,400 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:52,400 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:52,400 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:52,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1122690972, now seen corresponding path program 1 times [2018-04-11 15:22:52,401 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:52,401 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:52,401 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:52,401 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:52,411 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:52,483 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 15:22:52,483 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:22:52,484 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 15:22:52,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-04-11 15:22:52,484 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-04-11 15:22:52,484 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-04-11 15:22:52,484 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 8 states. [2018-04-11 15:22:52,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:52,555 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2018-04-11 15:22:52,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 15:22:52,556 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-04-11 15:22:52,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:52,558 INFO L225 Difference]: With dead ends: 37 [2018-04-11 15:22:52,558 INFO L226 Difference]: Without dead ends: 37 [2018-04-11 15:22:52,558 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 15:22:52,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-04-11 15:22:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2018-04-11 15:22:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-04-11 15:22:52,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2018-04-11 15:22:52,560 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 16 [2018-04-11 15:22:52,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:52,561 INFO L459 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2018-04-11 15:22:52,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-04-11 15:22:52,561 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2018-04-11 15:22:52,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-11 15:22:52,561 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:52,561 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:52,561 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:52,561 INFO L82 PathProgramCache]: Analyzing trace with hash -2005189487, now seen corresponding path program 1 times [2018-04-11 15:22:52,562 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:52,562 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:52,562 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:52,562 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:52,574 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:52,589 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 15:22:52,590 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:22:52,590 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-04-11 15:22:52,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 15:22:52,590 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 15:22:52,590 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 15:22:52,591 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 3 states. [2018-04-11 15:22:52,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:52,596 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-04-11 15:22:52,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 15:22:52,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-04-11 15:22:52,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:52,597 INFO L225 Difference]: With dead ends: 32 [2018-04-11 15:22:52,597 INFO L226 Difference]: Without dead ends: 32 [2018-04-11 15:22:52,597 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 15:22:52,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-04-11 15:22:52,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-04-11 15:22:52,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-04-11 15:22:52,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-04-11 15:22:52,599 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 20 [2018-04-11 15:22:52,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:52,599 INFO L459 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-04-11 15:22:52,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 15:22:52,599 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-04-11 15:22:52,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 15:22:52,600 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:52,600 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:52,600 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:52,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1858341580, now seen corresponding path program 1 times [2018-04-11 15:22:52,600 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:52,600 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:52,601 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:52,601 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:52,612 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:52,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:22:52,675 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:22:52,675 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:22:52,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:52,698 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:22:52,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:22:52,719 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:22:52,719 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-04-11 15:22:52,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 15:22:52,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 15:22:52,719 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 15:22:52,720 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 7 states. [2018-04-11 15:22:52,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:52,797 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2018-04-11 15:22:52,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-11 15:22:52,797 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-04-11 15:22:52,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:52,798 INFO L225 Difference]: With dead ends: 58 [2018-04-11 15:22:52,798 INFO L226 Difference]: Without dead ends: 58 [2018-04-11 15:22:52,799 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-04-11 15:22:52,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-04-11 15:22:52,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 49. [2018-04-11 15:22:52,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 15:22:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2018-04-11 15:22:52,803 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 22 [2018-04-11 15:22:52,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:52,804 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2018-04-11 15:22:52,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 15:22:52,804 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2018-04-11 15:22:52,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 15:22:52,804 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:52,804 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:52,805 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:52,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1156762038, now seen corresponding path program 1 times [2018-04-11 15:22:52,805 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:52,805 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:52,806 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:52,806 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:52,821 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:52,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:22:52,916 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:22:52,916 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-04-11 15:22:52,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 15:22:52,917 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 15:22:52,917 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 15:22:52,917 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand 10 states. [2018-04-11 15:22:53,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:53,047 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2018-04-11 15:22:53,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-04-11 15:22:53,048 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-04-11 15:22:53,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:53,048 INFO L225 Difference]: With dead ends: 83 [2018-04-11 15:22:53,048 INFO L226 Difference]: Without dead ends: 83 [2018-04-11 15:22:53,048 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-04-11 15:22:53,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-04-11 15:22:53,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 63. [2018-04-11 15:22:53,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-11 15:22:53,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2018-04-11 15:22:53,052 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 22 [2018-04-11 15:22:53,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:53,052 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2018-04-11 15:22:53,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 15:22:53,052 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2018-04-11 15:22:53,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 15:22:53,052 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:53,052 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:53,053 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:53,053 INFO L82 PathProgramCache]: Analyzing trace with hash 135693684, now seen corresponding path program 1 times [2018-04-11 15:22:53,053 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:53,053 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:53,053 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:53,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:53,053 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:53,066 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:53,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:22:53,228 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:22:53,229 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:22:53,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:53,254 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:22:53,272 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 15:22:53,274 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:22:53,276 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:22:53,276 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:22:53,305 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 15:22:53,307 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 15:22:53,307 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:22:53,308 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:22:53,311 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:22:53,311 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:27, output treesize:23 [2018-04-11 15:22:53,388 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 15:22:53,394 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 15:22:53,394 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:22:53,397 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:22:53,406 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 15:22:53,406 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:54 [2018-04-11 15:22:53,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:22:53,525 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:22:53,525 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2018-04-11 15:22:53,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 15:22:53,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 15:22:53,526 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2018-04-11 15:22:53,526 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 20 states. [2018-04-11 15:22:53,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:53,935 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2018-04-11 15:22:53,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 15:22:53,936 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 22 [2018-04-11 15:22:53,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:53,936 INFO L225 Difference]: With dead ends: 85 [2018-04-11 15:22:53,936 INFO L226 Difference]: Without dead ends: 85 [2018-04-11 15:22:53,937 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=783, Unknown=0, NotChecked=0, Total=930 [2018-04-11 15:22:53,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-04-11 15:22:53,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 69. [2018-04-11 15:22:53,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-11 15:22:53,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2018-04-11 15:22:53,940 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 22 [2018-04-11 15:22:53,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:53,941 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2018-04-11 15:22:53,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 15:22:53,941 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2018-04-11 15:22:53,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 15:22:53,941 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:53,941 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:53,941 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:53,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1449445054, now seen corresponding path program 1 times [2018-04-11 15:22:53,942 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:53,942 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:53,942 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:53,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:53,942 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:53,948 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:53,987 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 15:22:53,987 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:22:53,988 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 15:22:53,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 15:22:53,988 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 15:22:53,988 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-11 15:22:53,988 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand 6 states. [2018-04-11 15:22:54,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:54,023 INFO L93 Difference]: Finished difference Result 96 states and 105 transitions. [2018-04-11 15:22:54,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 15:22:54,023 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-04-11 15:22:54,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:54,024 INFO L225 Difference]: With dead ends: 96 [2018-04-11 15:22:54,024 INFO L226 Difference]: Without dead ends: 92 [2018-04-11 15:22:54,024 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-11 15:22:54,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-04-11 15:22:54,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 77. [2018-04-11 15:22:54,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-04-11 15:22:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions. [2018-04-11 15:22:54,031 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 23 [2018-04-11 15:22:54,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:54,031 INFO L459 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions. [2018-04-11 15:22:54,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 15:22:54,031 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions. [2018-04-11 15:22:54,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 15:22:54,032 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:54,032 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:54,032 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:54,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1824453888, now seen corresponding path program 1 times [2018-04-11 15:22:54,032 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:54,032 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:54,033 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:54,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:54,033 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:54,040 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:54,044 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:22:54,044 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:22:54,044 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:22:54,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:54,057 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:22:54,085 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 15:22:54,085 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:22:54,086 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 15:22:54,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 15:22:54,086 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 15:22:54,086 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-04-11 15:22:54,086 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand 7 states. [2018-04-11 15:22:54,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:54,142 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2018-04-11 15:22:54,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 15:22:54,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-04-11 15:22:54,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:54,143 INFO L225 Difference]: With dead ends: 87 [2018-04-11 15:22:54,143 INFO L226 Difference]: Without dead ends: 79 [2018-04-11 15:22:54,143 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-04-11 15:22:54,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-11 15:22:54,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 69. [2018-04-11 15:22:54,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-11 15:22:54,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2018-04-11 15:22:54,146 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 23 [2018-04-11 15:22:54,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:54,146 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2018-04-11 15:22:54,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 15:22:54,146 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2018-04-11 15:22:54,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-04-11 15:22:54,146 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:54,146 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:54,147 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:54,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1019845055, now seen corresponding path program 1 times [2018-04-11 15:22:54,147 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:54,147 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:54,147 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:54,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:54,147 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:54,155 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:54,158 INFO L431 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-04-11 15:22:54,158 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:22:54,158 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:22:54,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:54,174 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:22:54,190 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 15:22:54,191 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 15:22:54,191 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:22:54,193 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 15:22:54,193 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 15:22:54,209 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (and (= |c_#valid| (store |c_old(#valid)| |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|)))) is different from true [2018-04-11 15:22:54,212 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 15:22:54,212 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 15:22:54,212 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 15:22:54,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 15:22:54,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 15:22:54,213 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2018-04-11 15:22:54,213 INFO L87 Difference]: Start difference. First operand 69 states and 76 transitions. Second operand 6 states. [2018-04-11 15:22:54,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:54,248 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2018-04-11 15:22:54,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 15:22:54,248 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-04-11 15:22:54,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:54,249 INFO L225 Difference]: With dead ends: 68 [2018-04-11 15:22:54,249 INFO L226 Difference]: Without dead ends: 29 [2018-04-11 15:22:54,249 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 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 15:22:54,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-04-11 15:22:54,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-04-11 15:22:54,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-04-11 15:22:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-04-11 15:22:54,250 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 25 [2018-04-11 15:22:54,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:54,250 INFO L459 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-04-11 15:22:54,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 15:22:54,251 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-04-11 15:22:54,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-04-11 15:22:54,251 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:54,251 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:54,251 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:54,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1589629196, now seen corresponding path program 2 times [2018-04-11 15:22:54,251 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:54,251 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:54,252 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:54,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 15:22:54,252 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:54,268 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:54,468 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:22:54,468 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:22:54,468 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:22:54,468 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 15:22:54,481 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 15:22:54,481 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:22:54,483 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:22:54,485 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 15:22:54,485 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:22:54,488 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:22:54,488 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:22:54,502 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 15:22:54,503 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 15:22:54,504 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:22:54,505 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:22:54,507 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:22:54,507 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-11 15:22:54,602 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 15:22:54,606 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 15:22:54,607 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:22:54,609 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:22:54,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:22:54,614 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:32, output treesize:40 [2018-04-11 15:22:54,708 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:22:54,708 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:22:54,708 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2018-04-11 15:22:54,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-04-11 15:22:54,708 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-04-11 15:22:54,709 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2018-04-11 15:22:54,709 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 22 states. [2018-04-11 15:22:54,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:54,970 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-04-11 15:22:54,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 15:22:54,970 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 28 [2018-04-11 15:22:54,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:54,971 INFO L225 Difference]: With dead ends: 38 [2018-04-11 15:22:54,971 INFO L226 Difference]: Without dead ends: 38 [2018-04-11 15:22:54,971 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=136, Invalid=794, Unknown=0, NotChecked=0, Total=930 [2018-04-11 15:22:54,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-04-11 15:22:54,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-04-11 15:22:54,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-04-11 15:22:54,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-04-11 15:22:54,972 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 28 [2018-04-11 15:22:54,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:54,973 INFO L459 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-04-11 15:22:54,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-04-11 15:22:54,973 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-04-11 15:22:54,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-11 15:22:54,973 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 15:22:54,973 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 15:22:54,973 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr1RequiresViolation, __U_MULTI_fopenbsd_cstrnlen_alloca_true_valid_memsafety_true_termination_i__cstrnlenErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-11 15:22:54,973 INFO L82 PathProgramCache]: Analyzing trace with hash 783813284, now seen corresponding path program 3 times [2018-04-11 15:22:54,973 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 15:22:54,973 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 15:22:54,974 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:54,974 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 15:22:54,974 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 15:22:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 15:22:54,984 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 15:22:55,122 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-04-11 15:22:55,122 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 15:22:55,122 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 15:22:55,123 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-04-11 15:22:55,156 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-04-11 15:22:55,156 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 15:22:55,159 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 15:22:55,168 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 15:22:55,168 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 15:22:55,171 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:22:55,171 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-11 15:22:55,179 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 15:22:55,181 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 15:22:55,181 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 15:22:55,182 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:22:55,186 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 15:22:55,186 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-11 15:22:55,277 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 15:22:55,283 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 15:22:55,283 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 15:22:55,286 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:22:55,290 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 15:22:55,290 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:32, output treesize:34 [2018-04-11 15:22:55,360 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 15:22:55,360 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 15:22:55,360 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 19 [2018-04-11 15:22:55,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-11 15:22:55,361 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-11 15:22:55,361 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2018-04-11 15:22:55,361 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 20 states. [2018-04-11 15:22:55,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 15:22:55,838 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-04-11 15:22:55,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-11 15:22:55,838 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 34 [2018-04-11 15:22:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 15:22:55,838 INFO L225 Difference]: With dead ends: 43 [2018-04-11 15:22:55,838 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 15:22:55,839 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=318, Invalid=1404, Unknown=0, NotChecked=0, Total=1722 [2018-04-11 15:22:55,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 15:22:55,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 15:22:55,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 15:22:55,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 15:22:55,839 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-04-11 15:22:55,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 15:22:55,840 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 15:22:55,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-11 15:22:55,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 15:22:55,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 15:22:55,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 03:22:55 BoogieIcfgContainer [2018-04-11 15:22:55,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 15:22:55,843 INFO L168 Benchmark]: Toolchain (without parser) took 4539.36 ms. Allocated memory was 402.7 MB in the beginning and 680.0 MB in the end (delta: 277.3 MB). Free memory was 334.6 MB in the beginning and 639.1 MB in the end (delta: -304.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 15:22:55,844 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 402.7 MB. Free memory is still 360.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 15:22:55,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.27 ms. Allocated memory is still 402.7 MB. Free memory was 333.3 MB in the beginning and 310.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. [2018-04-11 15:22:55,844 INFO L168 Benchmark]: Boogie Preprocessor took 34.25 ms. Allocated memory is still 402.7 MB. Free memory was 309.4 MB in the beginning and 308.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-04-11 15:22:55,844 INFO L168 Benchmark]: RCFGBuilder took 361.52 ms. Allocated memory was 402.7 MB in the beginning and 591.4 MB in the end (delta: 188.7 MB). Free memory was 308.1 MB in the beginning and 531.5 MB in the end (delta: -223.5 MB). Peak memory consumption was 24.4 MB. Max. memory is 5.3 GB. [2018-04-11 15:22:55,845 INFO L168 Benchmark]: TraceAbstraction took 3903.72 ms. Allocated memory was 591.4 MB in the beginning and 680.0 MB in the end (delta: 88.6 MB). Free memory was 530.1 MB in the beginning and 639.1 MB in the end (delta: -109.0 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 15:22:55,846 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 402.7 MB. Free memory is still 360.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 237.27 ms. Allocated memory is still 402.7 MB. Free memory was 333.3 MB in the beginning and 310.7 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 34.25 ms. Allocated memory is still 402.7 MB. Free memory was 309.4 MB in the beginning and 308.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 361.52 ms. Allocated memory was 402.7 MB in the beginning and 591.4 MB in the end (delta: 188.7 MB). Free memory was 308.1 MB in the beginning and 531.5 MB in the end (delta: -223.5 MB). Peak memory consumption was 24.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 3903.72 ms. Allocated memory was 591.4 MB in the beginning and 680.0 MB in the end (delta: 88.6 MB). Free memory was 530.1 MB in the beginning and 639.1 MB in the end (delta: -109.0 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: 558]: 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: 558]: 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, 40 locations, 5 error locations. SAFE Result, 3.8s OverallTime, 13 OverallIterations, 4 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 327 SDtfs, 448 SDslu, 1257 SDs, 0 SdLazy, 980 SolverSat, 123 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 293 GetRequests, 124 SyntacticMatches, 7 SemanticMatches, 162 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=9, 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, 13 MinimizatonAttempts, 79 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 427 NumberOfCodeBlocks, 427 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 362 ConstructedInterpolants, 15 QuantifiedInterpolants, 69208 SizeOfPredicates, 33 NumberOfNonLiveVariables, 593 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 13/95 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_cstrnlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_15-22-55-851.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrnlen-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_15-22-55-851.csv Received shutdown request...