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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 16:30:14,754 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 16:30:14,758 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 16:30:14,814 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-05 16:30:14,815 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-05 16:30:14,816 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-05 16:30:14,829 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-05 16:30:14,832 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-05 16:30:14,835 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-05 16:30:14,841 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-05 16:30:14,842 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-05 16:30:14,843 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-05 16:30:14,844 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-05 16:30:14,857 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-05 16:30:14,858 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-05 16:30:14,860 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-05 16:30:14,876 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-05 16:30:14,877 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-05 16:30:14,887 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-05 16:30:14,888 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-05 16:30:14,891 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-05 16:30:14,891 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-05 16:30:14,891 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-05 16:30:14,902 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-05 16:30:14,903 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-05 16:30:14,905 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-05 16:30:14,905 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-05 16:30:14,906 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-05 16:30:14,906 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-05 16:30:14,906 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-05 16:30:14,907 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-05 16:30:14,907 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf [2018-04-05 16:30:14,970 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 16:30:14,970 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 16:30:14,970 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 16:30:14,971 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 16:30:14,971 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 16:30:14,971 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 16:30:14,972 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 16:30:14,981 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 16:30:14,981 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 16:30:14,982 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 16:30:14,982 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 16:30:14,982 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 16:30:14,982 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 16:30:14,982 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 16:30:14,982 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 16:30:14,983 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 16:30:14,983 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 16:30:14,983 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 16:30:14,983 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 16:30:14,983 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 16:30:14,983 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 16:30:14,984 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 16:30:14,984 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 16:30:14,984 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 16:30:14,984 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 16:30:14,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 16:30:14,985 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 16:30:14,986 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 16:30:14,986 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 16:30:14,986 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 16:30:14,986 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 16:30:14,986 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:14,987 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 16:30:14,993 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 16:30:14,996 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 16:30:14,996 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 16:30:14,996 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 16:30:15,092 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 16:30:15,119 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 16:30:15,131 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 16:30:15,133 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 16:30:15,134 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 16:30:15,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:15,690 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG023fb72c9 [2018-04-05 16:30:16,171 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 16:30:16,172 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 16:30:16,172 INFO L168 CDTParser]: Scanning openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,192 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 16:30:16,192 INFO L215 ultiparseSymbolTable]: [2018-04-05 16:30:16,192 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 16:30:16,192 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,193 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlen ('cstrlen') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,198 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,198 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,198 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmp ('cstrncmp') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,199 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstr ('cstrstr') in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,199 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 16:30:16,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,199 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,200 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,201 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,202 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,207 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,208 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,208 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,208 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,208 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,208 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,208 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,208 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,208 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,208 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,209 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,209 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,209 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,209 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,209 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,209 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,209 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,209 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,209 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,209 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,210 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,211 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,215 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,215 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,215 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,216 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,216 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,216 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,216 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,216 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,216 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,216 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,217 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,217 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,217 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,217 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,217 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,217 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,217 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,217 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,217 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,217 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,218 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,218 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,218 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,218 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,218 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,218 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,218 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,218 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,218 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,218 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,219 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,219 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,219 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,219 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,219 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,219 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,219 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,219 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,219 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,219 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,219 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,220 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,229 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,229 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,229 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,230 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,230 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,230 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,230 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,238 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,238 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,238 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,238 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,238 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,238 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,238 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,239 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,239 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,239 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,240 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,240 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,240 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,240 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:16,326 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG023fb72c9 [2018-04-05 16:30:16,348 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 16:30:16,357 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 16:30:16,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 16:30:16,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 16:30:16,375 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 16:30:16,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:30:16" (1/1) ... [2018-04-05 16:30:16,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b49232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:16, skipping insertion in model container [2018-04-05 16:30:16,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:30:16" (1/1) ... [2018-04-05 16:30:16,407 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:30:16,474 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:30:16,931 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:30:17,081 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:30:17,093 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 114 non ball SCCs. Number of states in SCCs 114. [2018-04-05 16:30:17,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:17 WrapperNode [2018-04-05 16:30:17,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 16:30:17,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 16:30:17,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 16:30:17,212 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 16:30:17,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:17" (1/1) ... [2018-04-05 16:30:17,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:17" (1/1) ... [2018-04-05 16:30:17,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:17" (1/1) ... [2018-04-05 16:30:17,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:17" (1/1) ... [2018-04-05 16:30:17,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:17" (1/1) ... [2018-04-05 16:30:17,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:17" (1/1) ... [2018-04-05 16:30:17,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:17" (1/1) ... [2018-04-05 16:30:17,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 16:30:17,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 16:30:17,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 16:30:17,376 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 16:30:17,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:17" (1/1) ... No working directory specified, using /storage/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 [2018-04-05 16:30:17,704 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 16:30:17,706 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 16:30:17,706 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 16:30:17,706 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 16:30:17,706 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlen [2018-04-05 16:30:17,706 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmp [2018-04-05 16:30:17,707 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstr [2018-04-05 16:30:17,707 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 16:30:17,707 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 16:30:17,707 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 16:30:17,707 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 16:30:17,707 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 16:30:17,707 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 16:30:17,708 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 16:30:17,708 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 16:30:17,708 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 16:30:17,708 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 16:30:17,708 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 16:30:17,708 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 16:30:17,709 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 16:30:17,709 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 16:30:17,710 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 16:30:17,710 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 16:30:17,710 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 16:30:17,710 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 16:30:17,710 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 16:30:17,710 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 16:30:17,710 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 16:30:17,711 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 16:30:17,711 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 16:30:17,711 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 16:30:17,711 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 16:30:17,714 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 16:30:17,714 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 16:30:17,715 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 16:30:17,715 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 16:30:17,715 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 16:30:17,715 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 16:30:17,715 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 16:30:17,715 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 16:30:17,715 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 16:30:17,715 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 16:30:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 16:30:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 16:30:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 16:30:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 16:30:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 16:30:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 16:30:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 16:30:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 16:30:17,716 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 16:30:17,717 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 16:30:17,717 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 16:30:17,717 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 16:30:17,717 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 16:30:17,717 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 16:30:17,717 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 16:30:17,717 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 16:30:17,717 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 16:30:17,718 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 16:30:17,718 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 16:30:17,718 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 16:30:17,718 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 16:30:17,718 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 16:30:17,718 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 16:30:17,718 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 16:30:17,718 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 16:30:17,719 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 16:30:17,719 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 16:30:17,723 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 16:30:17,723 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 16:30:17,724 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 16:30:17,724 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 16:30:17,724 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 16:30:17,724 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 16:30:17,724 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 16:30:17,724 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 16:30:17,724 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 16:30:17,725 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 16:30:17,725 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 16:30:17,725 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 16:30:17,725 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 16:30:17,725 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 16:30:17,725 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 16:30:17,725 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 16:30:17,725 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 16:30:17,726 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 16:30:17,726 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 16:30:17,726 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 16:30:17,726 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 16:30:17,726 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 16:30:17,726 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 16:30:17,726 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 16:30:17,726 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 16:30:17,726 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 16:30:17,727 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 16:30:17,728 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 16:30:17,728 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 16:30:17,728 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 16:30:17,728 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 16:30:17,728 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 16:30:17,729 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 16:30:17,729 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 16:30:17,729 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 16:30:17,729 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 16:30:17,729 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 16:30:17,729 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 16:30:17,729 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 16:30:17,729 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 16:30:17,730 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 16:30:17,730 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 16:30:17,730 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlen [2018-04-05 16:30:17,730 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 16:30:17,730 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmp [2018-04-05 16:30:17,730 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstr [2018-04-05 16:30:17,730 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 16:30:17,730 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 16:30:17,731 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 16:30:17,731 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 16:30:17,731 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 16:30:17,731 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 16:30:17,731 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 16:30:19,348 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 16:30:19,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:30:19 BoogieIcfgContainer [2018-04-05 16:30:19,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 16:30:19,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 16:30:19,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 16:30:19,365 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 16:30:19,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:30:16" (1/3) ... [2018-04-05 16:30:19,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a939196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:30:19, skipping insertion in model container [2018-04-05 16:30:19,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:17" (2/3) ... [2018-04-05 16:30:19,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a939196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:30:19, skipping insertion in model container [2018-04-05 16:30:19,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:30:19" (3/3) ... [2018-04-05 16:30:19,369 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:30:19,384 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 16:30:19,396 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2018-04-05 16:30:19,500 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 16:30:19,501 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 16:30:19,501 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 16:30:19,502 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 16:30:19,502 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 16:30:19,502 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 16:30:19,502 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 16:30:19,502 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 16:30:19,502 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 16:30:19,503 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 16:30:19,542 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2018-04-05 16:30:19,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-05 16:30:19,551 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:30:19,552 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:30:19,552 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:30:19,561 INFO L82 PathProgramCache]: Analyzing trace with hash 104768082, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:19,581 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:30:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:30:19,677 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:30:19,759 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:30:19,761 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:19,777 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:19,777 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:30:19,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:30:19,916 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:19,963 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. [2018-04-05 16:30:19,967 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-04-05 16:30:19,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:19,998 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:30:20,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:20,149 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:30:20,153 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 16:30:20,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 16:30:20,178 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 16:30:20,179 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 16:30:20,181 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 4 states. [2018-04-05 16:30:20,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:30:20,905 INFO L93 Difference]: Finished difference Result 243 states and 267 transitions. [2018-04-05 16:30:20,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 16:30:20,908 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-04-05 16:30:20,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:30:20,941 INFO L225 Difference]: With dead ends: 243 [2018-04-05 16:30:20,941 INFO L226 Difference]: Without dead ends: 146 [2018-04-05 16:30:20,947 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:30:21,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-04-05 16:30:21,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-04-05 16:30:21,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-04-05 16:30:21,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 156 transitions. [2018-04-05 16:30:21,053 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 156 transitions. Word has length 19 [2018-04-05 16:30:21,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:30:21,054 INFO L459 AbstractCegarLoop]: Abstraction has 146 states and 156 transitions. [2018-04-05 16:30:21,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 16:30:21,054 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 156 transitions. [2018-04-05 16:30:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-05 16:30:21,055 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:30:21,055 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:30:21,055 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:30:21,056 INFO L82 PathProgramCache]: Analyzing trace with hash 104768083, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:21,083 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:30:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:30:21,141 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:30:21,175 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 [2018-04-05 16:30:21,175 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:21,261 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 [2018-04-05 16:30:21,262 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:21,292 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:21,292 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-04-05 16:30:21,488 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:30:21,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 16:30:21,502 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:21,589 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:30:21,597 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:30:21,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:30:21,599 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:21,644 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:21,647 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-04-05 16:30:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:21,712 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:30:22,066 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:22,066 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:25, output treesize:3 [2018-04-05 16:30:22,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:22,140 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:30:22,141 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-04-05 16:30:22,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-05 16:30:22,143 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-05 16:30:22,144 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-04-05 16:30:22,144 INFO L87 Difference]: Start difference. First operand 146 states and 156 transitions. Second operand 9 states. [2018-04-05 16:30:22,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:30:22,908 INFO L93 Difference]: Finished difference Result 146 states and 156 transitions. [2018-04-05 16:30:22,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:30:22,914 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-04-05 16:30:22,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:30:22,917 INFO L225 Difference]: With dead ends: 146 [2018-04-05 16:30:22,917 INFO L226 Difference]: Without dead ends: 145 [2018-04-05 16:30:22,920 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:30:22,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-04-05 16:30:22,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-04-05 16:30:22,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-04-05 16:30:22,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 155 transitions. [2018-04-05 16:30:22,948 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 155 transitions. Word has length 19 [2018-04-05 16:30:22,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:30:22,948 INFO L459 AbstractCegarLoop]: Abstraction has 145 states and 155 transitions. [2018-04-05 16:30:22,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-05 16:30:22,952 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions. [2018-04-05 16:30:22,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-05 16:30:22,952 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:30:22,953 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] [2018-04-05 16:30:22,953 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:30:22,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1047156750, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:22,978 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:30:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:30:23,036 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:30:23,052 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 [2018-04-05 16:30:23,052 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:23,062 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:23,062 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:30:23,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:23,107 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:30:23,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:23,185 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:30:23,185 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 16:30:23,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 16:30:23,186 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 16:30:23,186 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 16:30:23,186 INFO L87 Difference]: Start difference. First operand 145 states and 155 transitions. Second operand 4 states. [2018-04-05 16:30:24,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:30:24,229 INFO L93 Difference]: Finished difference Result 145 states and 155 transitions. [2018-04-05 16:30:24,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 16:30:24,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-04-05 16:30:24,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:30:24,236 INFO L225 Difference]: With dead ends: 145 [2018-04-05 16:30:24,236 INFO L226 Difference]: Without dead ends: 144 [2018-04-05 16:30:24,237 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:30:24,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-04-05 16:30:24,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-04-05 16:30:24,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-04-05 16:30:24,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 154 transitions. [2018-04-05 16:30:24,252 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 154 transitions. Word has length 20 [2018-04-05 16:30:24,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:30:24,252 INFO L459 AbstractCegarLoop]: Abstraction has 144 states and 154 transitions. [2018-04-05 16:30:24,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 16:30:24,252 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 154 transitions. [2018-04-05 16:30:24,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-04-05 16:30:24,253 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:30:24,253 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] [2018-04-05 16:30:24,254 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:30:24,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1047156749, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:24,288 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:30:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:30:24,317 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:30:24,351 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 [2018-04-05 16:30:24,351 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:24,387 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:24,388 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-05 16:30:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:24,586 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:30:24,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:24,752 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:30:24,752 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-05 16:30:24,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:30:24,752 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:30:24,753 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:30:24,753 INFO L87 Difference]: Start difference. First operand 144 states and 154 transitions. Second operand 7 states. [2018-04-05 16:30:25,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:30:25,078 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2018-04-05 16:30:25,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:30:25,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-04-05 16:30:25,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:30:25,081 INFO L225 Difference]: With dead ends: 144 [2018-04-05 16:30:25,081 INFO L226 Difference]: Without dead ends: 143 [2018-04-05 16:30:25,082 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:30:25,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-04-05 16:30:25,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-04-05 16:30:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-04-05 16:30:25,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 153 transitions. [2018-04-05 16:30:25,129 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 153 transitions. Word has length 20 [2018-04-05 16:30:25,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:30:25,130 INFO L459 AbstractCegarLoop]: Abstraction has 143 states and 153 transitions. [2018-04-05 16:30:25,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:30:25,130 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 153 transitions. [2018-04-05 16:30:25,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-05 16:30:25,131 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:30:25,131 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:30:25,132 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:30:25,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1739525523, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:25,167 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:30:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:30:25,227 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:30:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:25,358 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:30:25,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:25,430 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:30:25,430 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2018-04-05 16:30:25,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-05 16:30:25,431 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-05 16:30:25,431 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-04-05 16:30:25,431 INFO L87 Difference]: Start difference. First operand 143 states and 153 transitions. Second operand 6 states. [2018-04-05 16:30:26,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:30:26,082 INFO L93 Difference]: Finished difference Result 143 states and 153 transitions. [2018-04-05 16:30:26,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:30:26,099 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2018-04-05 16:30:26,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:30:26,104 INFO L225 Difference]: With dead ends: 143 [2018-04-05 16:30:26,104 INFO L226 Difference]: Without dead ends: 142 [2018-04-05 16:30:26,105 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:30:26,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-04-05 16:30:26,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2018-04-05 16:30:26,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-04-05 16:30:26,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 152 transitions. [2018-04-05 16:30:26,146 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 152 transitions. Word has length 29 [2018-04-05 16:30:26,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:30:26,147 INFO L459 AbstractCegarLoop]: Abstraction has 142 states and 152 transitions. [2018-04-05 16:30:26,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-05 16:30:26,147 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 152 transitions. [2018-04-05 16:30:26,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-04-05 16:30:26,148 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:30:26,148 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:30:26,148 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:30:26,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1739525524, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:26,175 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:30:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:30:26,251 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:30:26,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:26,644 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:30:26,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-05 16:30:26,664 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:26,702 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:30:26,703 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:26,749 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:30:26,750 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 16:30:26,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:26,908 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:30:26,908 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2018-04-05 16:30:26,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-05 16:30:26,909 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-05 16:30:26,909 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-04-05 16:30:26,909 INFO L87 Difference]: Start difference. First operand 142 states and 152 transitions. Second operand 9 states. [2018-04-05 16:30:27,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:30:27,812 INFO L93 Difference]: Finished difference Result 142 states and 152 transitions. [2018-04-05 16:30:27,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:30:27,813 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-04-05 16:30:27,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:30:27,815 INFO L225 Difference]: With dead ends: 142 [2018-04-05 16:30:27,815 INFO L226 Difference]: Without dead ends: 141 [2018-04-05 16:30:27,815 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2018-04-05 16:30:27,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-04-05 16:30:27,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-04-05 16:30:27,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-04-05 16:30:27,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 151 transitions. [2018-04-05 16:30:27,844 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 151 transitions. Word has length 29 [2018-04-05 16:30:27,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:30:27,847 INFO L459 AbstractCegarLoop]: Abstraction has 141 states and 151 transitions. [2018-04-05 16:30:27,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-05 16:30:27,847 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 151 transitions. [2018-04-05 16:30:27,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-05 16:30:27,848 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:30:27,849 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:30:27,849 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:30:27,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1793175866, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:27,868 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:30:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:30:27,904 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:30:28,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:28,139 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:30:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:28,214 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:30:28,215 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2018-04-05 16:30:28,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-05 16:30:28,216 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-05 16:30:28,216 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-04-05 16:30:28,216 INFO L87 Difference]: Start difference. First operand 141 states and 151 transitions. Second operand 9 states. [2018-04-05 16:30:29,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:30:29,266 INFO L93 Difference]: Finished difference Result 141 states and 151 transitions. [2018-04-05 16:30:29,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 16:30:29,266 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 39 [2018-04-05 16:30:29,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:30:29,268 INFO L225 Difference]: With dead ends: 141 [2018-04-05 16:30:29,268 INFO L226 Difference]: Without dead ends: 140 [2018-04-05 16:30:29,268 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-04-05 16:30:29,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-04-05 16:30:29,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-04-05 16:30:29,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-04-05 16:30:29,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 150 transitions. [2018-04-05 16:30:29,291 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 150 transitions. Word has length 39 [2018-04-05 16:30:29,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:30:29,291 INFO L459 AbstractCegarLoop]: Abstraction has 140 states and 150 transitions. [2018-04-05 16:30:29,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-05 16:30:29,292 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 150 transitions. [2018-04-05 16:30:29,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-04-05 16:30:29,293 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:30:29,293 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:30:29,293 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:30:29,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1793175867, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:29,318 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:30:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:30:29,382 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:30:29,434 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 14 treesize of output 11 [2018-04-05 16:30:29,440 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 11 treesize of output 10 [2018-04-05 16:30:29,440 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:29,448 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:29,479 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:30:29,479 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-05 16:30:29,796 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 [2018-04-05 16:30:29,852 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 [2018-04-05 16:30:29,852 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:30:29,862 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:30:29,956 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:30:29,957 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-05 16:30:30,123 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 15 DAG size of output 15 [2018-04-05 16:30:30,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:30,629 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:30:31,400 WARN L148 SmtUtils]: Spent 166ms on a formula simplification that was a NOOP. DAG size: 10 [2018-04-05 16:30:32,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:30:32,591 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:32,629 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 13 treesize of output 11 [2018-04-05 16:30:32,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:30:32,701 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:32,708 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:32,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:32,749 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-04-05 16:30:32,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:32,854 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:30:32,854 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2018-04-05 16:30:32,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-04-05 16:30:32,855 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-04-05 16:30:32,855 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2018-04-05 16:30:32,855 INFO L87 Difference]: Start difference. First operand 140 states and 150 transitions. Second operand 25 states. [2018-04-05 16:30:33,762 WARN L151 SmtUtils]: Spent 127ms on a formula simplification. DAG size of input: 49 DAG size of output 46 [2018-04-05 16:30:34,349 WARN L151 SmtUtils]: Spent 207ms on a formula simplification. DAG size of input: 46 DAG size of output 45 [2018-04-05 16:30:34,803 WARN L151 SmtUtils]: Spent 283ms on a formula simplification. DAG size of input: 50 DAG size of output 48 [2018-04-05 16:30:35,358 WARN L151 SmtUtils]: Spent 192ms on a formula simplification. DAG size of input: 46 DAG size of output 45 [2018-04-05 16:30:37,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:30:37,717 INFO L93 Difference]: Finished difference Result 154 states and 165 transitions. [2018-04-05 16:30:37,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-04-05 16:30:37,717 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 39 [2018-04-05 16:30:37,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:30:37,723 INFO L225 Difference]: With dead ends: 154 [2018-04-05 16:30:37,724 INFO L226 Difference]: Without dead ends: 153 [2018-04-05 16:30:37,725 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=198, Invalid=1208, Unknown=0, NotChecked=0, Total=1406 [2018-04-05 16:30:37,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-04-05 16:30:37,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 142. [2018-04-05 16:30:37,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-04-05 16:30:37,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 152 transitions. [2018-04-05 16:30:37,762 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 152 transitions. Word has length 39 [2018-04-05 16:30:37,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:30:37,763 INFO L459 AbstractCegarLoop]: Abstraction has 142 states and 152 transitions. [2018-04-05 16:30:37,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-04-05 16:30:37,763 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 152 transitions. [2018-04-05 16:30:37,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-04-05 16:30:37,773 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:30:37,779 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:30:37,779 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:30:37,779 INFO L82 PathProgramCache]: Analyzing trace with hash 474358775, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:37,815 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:30:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:30:37,877 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:30:38,054 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:30:38,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 16:30:38,064 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:30:38,065 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 16:30:38,066 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:38,107 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:38,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:30:38,136 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:30:38,299 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc22.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc22.base| 1))) (and (= (select .cse0 |c_main_#t~malloc23.base|) 0) (= (select |c_old(#valid)| |main_#t~malloc22.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc23.base| 1) |main_#t~malloc22.base| 0))))) is different from true [2018-04-05 16:30:38,332 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc22.base| Int) (|main_#t~malloc23.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc22.base| 1))) (and (= (select .cse0 |main_#t~malloc23.base|) 0) (= (select |c_old(#valid)| |main_#t~malloc22.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc23.base| 1) |main_#t~malloc22.base| 0) |main_#t~malloc23.base| 0))))) is different from true [2018-04-05 16:30:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:38,374 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:30:38,723 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc23.base_12| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc23.base_12| 1) |c_main_#t~malloc22.base| 0) |v_main_#t~malloc23.base_12| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc23.base_12|))))) is different from false [2018-04-05 16:30:38,731 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc22.base_11| Int) (|v_main_#t~malloc23.base_12| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc22.base_11| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc23.base_12| 1) |v_main_#t~malloc22.base_11| 0) |v_main_#t~malloc23.base_12| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc22.base_11|))) (not (= (select .cse0 |v_main_#t~malloc23.base_12|) 0))))) is different from false [2018-04-05 16:30:38,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:38,812 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:30:38,813 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:30:38,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:30:38,813 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:30:38,813 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:30:38,814 INFO L87 Difference]: Start difference. First operand 142 states and 152 transitions. Second operand 12 states. [2018-04-05 16:30:38,863 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc22.base_11| Int) (|v_main_#t~malloc23.base_12| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc22.base_11| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc23.base_12| 1) |v_main_#t~malloc22.base_11| 0) |v_main_#t~malloc23.base_12| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc22.base_11|))) (not (= (select .cse0 |v_main_#t~malloc23.base_12|) 0)))))) is different from false [2018-04-05 16:30:41,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:30:41,385 INFO L93 Difference]: Finished difference Result 269 states and 288 transitions. [2018-04-05 16:30:41,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:30:41,386 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2018-04-05 16:30:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:30:41,388 INFO L225 Difference]: With dead ends: 269 [2018-04-05 16:30:41,388 INFO L226 Difference]: Without dead ends: 249 [2018-04-05 16:30:41,391 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:30:41,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2018-04-05 16:30:41,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 236. [2018-04-05 16:30:41,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2018-04-05 16:30:41,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 266 transitions. [2018-04-05 16:30:41,438 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 266 transitions. Word has length 43 [2018-04-05 16:30:41,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:30:41,438 INFO L459 AbstractCegarLoop]: Abstraction has 236 states and 266 transitions. [2018-04-05 16:30:41,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:30:41,439 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 266 transitions. [2018-04-05 16:30:41,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-05 16:30:41,440 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:30:41,440 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:30:41,440 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:30:41,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1862601621, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:41,455 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:30:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:30:41,489 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:30:41,650 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:30:41,651 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 16:30:41,659 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:30:41,660 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 16:30:41,661 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:41,698 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:41,729 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:30:41,730 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:30:41,842 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc22.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc22.base| 1))) (and (= (select .cse0 |c_main_#t~malloc23.base|) 0) (= (select |c_old(#valid)| |main_#t~malloc22.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc23.base| 1) |main_#t~malloc22.base| 0))))) is different from true [2018-04-05 16:30:41,855 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc22.base| Int) (|main_#t~malloc23.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc22.base| 1))) (and (= (select .cse0 |main_#t~malloc23.base|) 0) (= (select |c_old(#valid)| |main_#t~malloc22.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc23.base| 1) |main_#t~malloc22.base| 0) |main_#t~malloc23.base| 0))))) is different from true [2018-04-05 16:30:41,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:41,868 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:30:41,974 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc23.base_14| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc23.base_14| 1) |c_main_#t~malloc22.base| 0) |v_main_#t~malloc23.base_14| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc23.base_14|))))) is different from false [2018-04-05 16:30:41,983 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc22.base_13| Int) (|v_main_#t~malloc23.base_14| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc22.base_13| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc23.base_14|))) (= (store (store (store .cse0 |v_main_#t~malloc23.base_14| 1) |v_main_#t~malloc22.base_13| 0) |v_main_#t~malloc23.base_14| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc22.base_13|)))))) is different from false [2018-04-05 16:30:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:42,133 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:30:42,133 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:30:42,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:30:42,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:30:42,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:30:42,134 INFO L87 Difference]: Start difference. First operand 236 states and 266 transitions. Second operand 12 states. [2018-04-05 16:30:42,225 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc22.base_13| Int) (|v_main_#t~malloc23.base_14| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc22.base_13| 1))) (or (not (= 0 (select .cse0 |v_main_#t~malloc23.base_14|))) (= (store (store (store .cse0 |v_main_#t~malloc23.base_14| 1) |v_main_#t~malloc22.base_13| 0) |v_main_#t~malloc23.base_14| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc22.base_13|))))))) is different from false [2018-04-05 16:30:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:30:47,634 INFO L93 Difference]: Finished difference Result 363 states and 401 transitions. [2018-04-05 16:30:47,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:30:47,665 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2018-04-05 16:30:47,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:30:47,669 INFO L225 Difference]: With dead ends: 363 [2018-04-05 16:30:47,670 INFO L226 Difference]: Without dead ends: 343 [2018-04-05 16:30:47,670 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 77 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:30:47,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2018-04-05 16:30:47,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 237. [2018-04-05 16:30:47,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-04-05 16:30:47,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 267 transitions. [2018-04-05 16:30:47,744 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 267 transitions. Word has length 44 [2018-04-05 16:30:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:30:47,744 INFO L459 AbstractCegarLoop]: Abstraction has 237 states and 267 transitions. [2018-04-05 16:30:47,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:30:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 267 transitions. [2018-04-05 16:30:47,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-04-05 16:30:47,746 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:30:47,747 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:30:47,747 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:30:47,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1515778480, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:47,780 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:30:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:30:47,838 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:30:48,055 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:30:48,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 16:30:48,073 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:30:48,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 16:30:48,074 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:48,124 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:48,158 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:30:48,158 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:30:48,355 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc22.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc22.base| 1))) (and (= (select .cse0 |c_main_#t~malloc23.base|) 0) (= (select |c_old(#valid)| |main_#t~malloc22.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc23.base| 1) |main_#t~malloc22.base| 0))))) is different from true [2018-04-05 16:30:48,397 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc22.base| Int) (|main_#t~malloc23.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc22.base| 1))) (and (= (select .cse0 |main_#t~malloc23.base|) 0) (= (select |c_old(#valid)| |main_#t~malloc22.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc23.base| 1) |main_#t~malloc22.base| 0) |main_#t~malloc23.base| 0))))) is different from true [2018-04-05 16:30:48,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:48,412 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:30:48,700 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc23.base_16| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc23.base_16| 1) |c_main_#t~malloc22.base| 0) |v_main_#t~malloc23.base_16| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc23.base_16|))))) is different from false [2018-04-05 16:30:48,726 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc22.base_15| Int) (|v_main_#t~malloc23.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc22.base_15| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc22.base_15|))) (= (store (store (store .cse0 |v_main_#t~malloc23.base_16| 1) |v_main_#t~malloc22.base_15| 0) |v_main_#t~malloc23.base_16| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc23.base_16|) 0))))) is different from false [2018-04-05 16:30:48,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:48,888 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:30:48,888 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:30:48,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:30:48,889 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:30:48,889 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:30:48,889 INFO L87 Difference]: Start difference. First operand 237 states and 267 transitions. Second operand 12 states. [2018-04-05 16:30:48,968 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc22.base_15| Int) (|v_main_#t~malloc23.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc22.base_15| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc22.base_15|))) (= (store (store (store .cse0 |v_main_#t~malloc23.base_16| 1) |v_main_#t~malloc22.base_15| 0) |v_main_#t~malloc23.base_16| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc23.base_16|) 0)))))) is different from false [2018-04-05 16:30:52,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:30:52,733 INFO L93 Difference]: Finished difference Result 363 states and 401 transitions. [2018-04-05 16:30:52,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:30:52,765 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2018-04-05 16:30:52,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:30:52,767 INFO L225 Difference]: With dead ends: 363 [2018-04-05 16:30:52,768 INFO L226 Difference]: Without dead ends: 343 [2018-04-05 16:30:52,768 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 77 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:30:52,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2018-04-05 16:30:52,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 237. [2018-04-05 16:30:52,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-04-05 16:30:52,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 267 transitions. [2018-04-05 16:30:52,843 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 267 transitions. Word has length 44 [2018-04-05 16:30:52,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:30:52,846 INFO L459 AbstractCegarLoop]: Abstraction has 237 states and 267 transitions. [2018-04-05 16:30:52,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:30:52,846 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 267 transitions. [2018-04-05 16:30:52,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-04-05 16:30:52,848 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:30:52,848 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:30:52,848 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:30:52,848 INFO L82 PathProgramCache]: Analyzing trace with hash 965199198, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:30:52,898 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:30:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:30:52,929 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:30:52,952 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 [2018-04-05 16:30:52,953 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:52,968 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:52,969 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 16:30:53,042 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 16:30:53,046 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:30:53,047 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:53,054 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:53,062 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:53,063 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-04-05 16:30:53,825 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 [2018-04-05 16:30:53,868 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 [2018-04-05 16:30:53,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:30:53,884 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:30:53,925 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:30:53,925 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:34 [2018-04-05 16:30:54,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:54,333 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:30:56,190 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 13 treesize of output 11 [2018-04-05 16:30:56,299 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 14 DAG size of output 12 [2018-04-05 16:30:56,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:30:56,304 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:30:56,309 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:30:56,343 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:30:56,343 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:35 [2018-04-05 16:30:56,568 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 18 DAG size of output 16 [2018-04-05 16:30:56,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:30:56,821 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:30:56,821 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2018-04-05 16:30:56,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-05 16:30:56,822 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-05 16:30:56,822 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=786, Unknown=0, NotChecked=0, Total=870 [2018-04-05 16:30:56,822 INFO L87 Difference]: Start difference. First operand 237 states and 267 transitions. Second operand 30 states. [2018-04-05 16:30:58,061 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 49 DAG size of output 37 [2018-04-05 16:30:59,457 WARN L151 SmtUtils]: Spent 216ms on a formula simplification. DAG size of input: 39 DAG size of output 39 [2018-04-05 16:30:59,907 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 33 DAG size of output 32 [2018-04-05 16:31:00,995 WARN L151 SmtUtils]: Spent 229ms on a formula simplification. DAG size of input: 44 DAG size of output 40 [2018-04-05 16:31:01,249 WARN L151 SmtUtils]: Spent 132ms on a formula simplification. DAG size of input: 39 DAG size of output 35 [2018-04-05 16:31:02,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:31:02,592 INFO L93 Difference]: Finished difference Result 253 states and 285 transitions. [2018-04-05 16:31:02,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-05 16:31:02,592 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 46 [2018-04-05 16:31:02,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:31:02,595 INFO L225 Difference]: With dead ends: 253 [2018-04-05 16:31:02,595 INFO L226 Difference]: Without dead ends: 252 [2018-04-05 16:31:02,606 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=268, Invalid=1802, Unknown=0, NotChecked=0, Total=2070 [2018-04-05 16:31:02,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2018-04-05 16:31:02,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 232. [2018-04-05 16:31:02,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-04-05 16:31:02,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 261 transitions. [2018-04-05 16:31:02,672 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 261 transitions. Word has length 46 [2018-04-05 16:31:02,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:31:02,672 INFO L459 AbstractCegarLoop]: Abstraction has 232 states and 261 transitions. [2018-04-05 16:31:02,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-05 16:31:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 261 transitions. [2018-04-05 16:31:02,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-05 16:31:02,673 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:31:02,681 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:31:02,681 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:31:02,681 INFO L82 PathProgramCache]: Analyzing trace with hash -213125892, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:31:02,697 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:31:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:31:02,754 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:31:03,136 WARN L148 SmtUtils]: Spent 116ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 16:31:03,206 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:31:03,207 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-04-05 16:31:03,233 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:31:03,234 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-04-05 16:31:03,234 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:03,258 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:03,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:31:03,286 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:31:03,426 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc22.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc22.base| 1))) (and (= (select .cse0 |c_main_#t~malloc23.base|) 0) (= (select |c_old(#valid)| |main_#t~malloc22.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc23.base| 1) |main_#t~malloc22.base| 0))))) is different from true [2018-04-05 16:31:03,432 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc22.base| Int) (|main_#t~malloc23.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc22.base| 1))) (and (= (select .cse0 |main_#t~malloc23.base|) 0) (= (select |c_old(#valid)| |main_#t~malloc22.base|) 0) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc23.base| 1) |main_#t~malloc22.base| 0) |main_#t~malloc23.base| 0))))) is different from true [2018-04-05 16:31:03,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:31:03,447 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:31:03,641 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc23.base_19| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc23.base_19| 1) |c_main_#t~malloc22.base| 0) |v_main_#t~malloc23.base_19| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc23.base_19|))))) is different from false [2018-04-05 16:31:03,662 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc23.base_19| Int) (|v_main_#t~malloc22.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc22.base_17| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc23.base_19| 1) |v_main_#t~malloc22.base_17| 0) |v_main_#t~malloc23.base_19| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc23.base_19|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc22.base_17|)))))) is different from false [2018-04-05 16:31:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:31:03,810 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:31:03,811 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:31:03,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:31:03,811 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:31:03,812 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:31:03,812 INFO L87 Difference]: Start difference. First operand 232 states and 261 transitions. Second operand 12 states. [2018-04-05 16:31:03,873 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc23.base_19| Int) (|v_main_#t~malloc22.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc22.base_17| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc23.base_19| 1) |v_main_#t~malloc22.base_17| 0) |v_main_#t~malloc23.base_19| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc23.base_19|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc22.base_17|))))))) is different from false [2018-04-05 16:31:08,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:31:08,559 INFO L93 Difference]: Finished difference Result 244 states and 261 transitions. [2018-04-05 16:31:08,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:31:08,599 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2018-04-05 16:31:08,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:31:08,600 INFO L225 Difference]: With dead ends: 244 [2018-04-05 16:31:08,601 INFO L226 Difference]: Without dead ends: 224 [2018-04-05 16:31:08,601 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-05 16:31:08,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-04-05 16:31:08,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 119. [2018-04-05 16:31:08,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-04-05 16:31:08,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 127 transitions. [2018-04-05 16:31:08,681 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 127 transitions. Word has length 45 [2018-04-05 16:31:08,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:31:08,682 INFO L459 AbstractCegarLoop]: Abstraction has 119 states and 127 transitions. [2018-04-05 16:31:08,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:31:08,682 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 127 transitions. [2018-04-05 16:31:08,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-05 16:31:08,683 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:31:08,683 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:31:08,683 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:31:08,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1966925962, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:31:08,705 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:31:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:31:08,758 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:31:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:31:08,942 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:31:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:31:09,031 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:31:09,031 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 6 [2018-04-05 16:31:09,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:31:09,032 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:31:09,032 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:31:09,032 INFO L87 Difference]: Start difference. First operand 119 states and 127 transitions. Second operand 7 states. [2018-04-05 16:31:09,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:31:09,649 INFO L93 Difference]: Finished difference Result 119 states and 127 transitions. [2018-04-05 16:31:09,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 16:31:09,649 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-04-05 16:31:09,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:31:09,650 INFO L225 Difference]: With dead ends: 119 [2018-04-05 16:31:09,650 INFO L226 Difference]: Without dead ends: 118 [2018-04-05 16:31:09,651 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-04-05 16:31:09,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-04-05 16:31:09,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-04-05 16:31:09,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-04-05 16:31:09,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 126 transitions. [2018-04-05 16:31:09,672 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 126 transitions. Word has length 51 [2018-04-05 16:31:09,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:31:09,673 INFO L459 AbstractCegarLoop]: Abstraction has 118 states and 126 transitions. [2018-04-05 16:31:09,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:31:09,673 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 126 transitions. [2018-04-05 16:31:09,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-04-05 16:31:09,673 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:31:09,674 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:31:09,681 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:31:09,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1966925963, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:31:09,706 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:31:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:31:09,739 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:31:10,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:31:10,219 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:31:10,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-04-05 16:31:10,287 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:10,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:31:10,465 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:10,587 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:31:10,587 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 16:31:10,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:31:10,875 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:31:10,875 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 9 [2018-04-05 16:31:10,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 16:31:10,876 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 16:31:10,876 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:31:10,876 INFO L87 Difference]: Start difference. First operand 118 states and 126 transitions. Second operand 10 states. [2018-04-05 16:31:14,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:31:14,337 INFO L93 Difference]: Finished difference Result 124 states and 132 transitions. [2018-04-05 16:31:14,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-05 16:31:14,337 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2018-04-05 16:31:14,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:31:14,338 INFO L225 Difference]: With dead ends: 124 [2018-04-05 16:31:14,339 INFO L226 Difference]: Without dead ends: 123 [2018-04-05 16:31:14,339 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2018-04-05 16:31:14,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-04-05 16:31:14,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-04-05 16:31:14,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-04-05 16:31:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 131 transitions. [2018-04-05 16:31:14,390 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 131 transitions. Word has length 51 [2018-04-05 16:31:14,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:31:14,391 INFO L459 AbstractCegarLoop]: Abstraction has 123 states and 131 transitions. [2018-04-05 16:31:14,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 16:31:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 131 transitions. [2018-04-05 16:31:14,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-04-05 16:31:14,392 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:31:14,392 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:31:14,392 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:31:14,392 INFO L82 PathProgramCache]: Analyzing trace with hash -461841797, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:31:14,434 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:31:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:31:14,480 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:31:14,527 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 [2018-04-05 16:31:14,528 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:14,559 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:14,560 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 16:31:14,725 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:31:14,737 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:31:14,738 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:31:14,738 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:14,758 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:14,759 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-05 16:31:14,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 16:31:14,867 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 11 treesize of output 10 [2018-04-05 16:31:14,868 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:14,871 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:14,912 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:31:14,912 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-05 16:31:14,980 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-04-05 16:31:14,985 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 11 treesize of output 10 [2018-04-05 16:31:14,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:15,017 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:15,059 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-05 16:31:15,059 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-05 16:31:23,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 52 [2018-04-05 16:31:23,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2018-04-05 16:31:23,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:24,200 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2018-04-05 16:31:24,200 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:24,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2018-04-05 16:31:24,385 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:24,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2018-04-05 16:31:24,552 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:24,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 40 [2018-04-05 16:31:24,873 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-04-05 16:31:25,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2018-04-05 16:31:25,137 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-04-05 16:31:25,385 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 24 treesize of output 22 [2018-04-05 16:31:25,386 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-04-05 16:31:25,717 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2018-04-05 16:31:25,718 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-04-05 16:31:25,875 INFO L267 ElimStorePlain]: Start of recursive call 2: 8 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:31:26,045 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:31:26,066 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 9 variables, input treesize:72, output treesize:29 [2018-04-05 16:31:26,279 WARN L151 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 15 DAG size of output 15 [2018-04-05 16:31:26,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:31:26,700 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:31:28,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:31:28,234 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:28,273 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 13 treesize of output 11 [2018-04-05 16:31:28,360 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:31:28,361 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:28,367 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:28,403 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:28,403 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:35, output treesize:7 [2018-04-05 16:31:28,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:31:28,641 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:31:28,641 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12] total 28 [2018-04-05 16:31:28,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-05 16:31:28,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-05 16:31:28,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=719, Unknown=4, NotChecked=0, Total=812 [2018-04-05 16:31:28,642 INFO L87 Difference]: Start difference. First operand 123 states and 131 transitions. Second operand 29 states. [2018-04-05 16:31:38,010 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 46 DAG size of output 42 [2018-04-05 16:31:38,654 WARN L151 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 82 DAG size of output 68 [2018-04-05 16:31:39,139 WARN L151 SmtUtils]: Spent 200ms on a formula simplification. DAG size of input: 81 DAG size of output 65 [2018-04-05 16:31:39,501 WARN L151 SmtUtils]: Spent 287ms on a formula simplification. DAG size of input: 85 DAG size of output 70 [2018-04-05 16:31:39,725 WARN L151 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 75 DAG size of output 62 [2018-04-05 16:31:43,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:31:43,111 INFO L93 Difference]: Finished difference Result 192 states and 205 transitions. [2018-04-05 16:31:43,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-04-05 16:31:43,112 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 60 [2018-04-05 16:31:43,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:31:43,115 INFO L225 Difference]: With dead ends: 192 [2018-04-05 16:31:43,115 INFO L226 Difference]: Without dead ends: 191 [2018-04-05 16:31:43,116 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 90 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=265, Invalid=1622, Unknown=5, NotChecked=0, Total=1892 [2018-04-05 16:31:43,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-04-05 16:31:43,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 178. [2018-04-05 16:31:43,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-04-05 16:31:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 201 transitions. [2018-04-05 16:31:43,185 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 201 transitions. Word has length 60 [2018-04-05 16:31:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:31:43,185 INFO L459 AbstractCegarLoop]: Abstraction has 178 states and 201 transitions. [2018-04-05 16:31:43,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-05 16:31:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 201 transitions. [2018-04-05 16:31:43,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-05 16:31:43,186 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:31:43,186 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:31:43,187 INFO L408 AbstractCegarLoop]: === Iteration 17 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:31:43,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1757645193, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:31:43,252 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:31:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:31:43,292 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:31:43,337 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 [2018-04-05 16:31:43,338 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:43,388 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:43,389 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 16:31:43,468 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:31:43,473 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:31:43,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:31:43,474 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:43,499 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:43,500 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-05 16:31:43,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 16:31:43,656 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 11 treesize of output 10 [2018-04-05 16:31:43,656 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:43,663 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:43,699 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:31:43,699 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-05 16:31:43,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-04-05 16:31:43,772 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 11 treesize of output 10 [2018-04-05 16:31:43,773 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:43,800 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:43,841 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-04-05 16:31:43,841 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-04-05 16:31:50,538 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2018-04-05 16:31:50,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2018-04-05 16:31:50,548 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:50,613 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 [2018-04-05 16:31:50,614 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-05 16:31:50,633 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:31:50,696 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:31:50,696 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:52, output treesize:29 [2018-04-05 16:31:50,904 WARN L151 SmtUtils]: Spent 145ms on a formula simplification. DAG size of input: 15 DAG size of output 15 [2018-04-05 16:31:51,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:31:51,421 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:31:53,097 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-04-05 16:31:53,098 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:53,140 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 13 treesize of output 11 [2018-04-05 16:31:53,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:31:53,210 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:31:53,216 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:53,250 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:31:53,250 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:35, output treesize:7 [2018-04-05 16:31:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:31:53,476 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:31:53,476 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [18, 13] imperfect sequences [] total 29 [2018-04-05 16:31:53,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-04-05 16:31:53,477 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-04-05 16:31:53,477 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=778, Unknown=2, NotChecked=0, Total=870 [2018-04-05 16:31:53,477 INFO L87 Difference]: Start difference. First operand 178 states and 201 transitions. Second operand 30 states. [2018-04-05 16:31:56,794 WARN L151 SmtUtils]: Spent 2165ms on a formula simplification. DAG size of input: 52 DAG size of output 50 [2018-04-05 16:31:57,722 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 68 DAG size of output 57 [2018-04-05 16:31:58,282 WARN L151 SmtUtils]: Spent 230ms on a formula simplification. DAG size of input: 61 DAG size of output 56 [2018-04-05 16:31:58,689 WARN L151 SmtUtils]: Spent 305ms on a formula simplification. DAG size of input: 65 DAG size of output 59 [2018-04-05 16:31:58,921 WARN L151 SmtUtils]: Spent 138ms on a formula simplification. DAG size of input: 55 DAG size of output 51 [2018-04-05 16:32:03,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:32:03,017 INFO L93 Difference]: Finished difference Result 222 states and 238 transitions. [2018-04-05 16:32:03,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-04-05 16:32:03,018 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 63 [2018-04-05 16:32:03,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:32:03,020 INFO L225 Difference]: With dead ends: 222 [2018-04-05 16:32:03,020 INFO L226 Difference]: Without dead ends: 220 [2018-04-05 16:32:03,021 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 95 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=267, Invalid=1893, Unknown=2, NotChecked=0, Total=2162 [2018-04-05 16:32:03,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-04-05 16:32:03,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 179. [2018-04-05 16:32:03,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-04-05 16:32:03,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 202 transitions. [2018-04-05 16:32:03,055 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 202 transitions. Word has length 63 [2018-04-05 16:32:03,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:32:03,055 INFO L459 AbstractCegarLoop]: Abstraction has 179 states and 202 transitions. [2018-04-05 16:32:03,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-04-05 16:32:03,056 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 202 transitions. [2018-04-05 16:32:03,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-04-05 16:32:03,056 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:32:03,057 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:32:03,057 INFO L408 AbstractCegarLoop]: === Iteration 18 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:32:03,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1757645194, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:32:03,072 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:32:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:32:03,111 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:32:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:03,395 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:32:03,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:03,468 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:32:03,468 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 8 [2018-04-05 16:32:03,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-04-05 16:32:03,473 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-04-05 16:32:03,473 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-04-05 16:32:03,474 INFO L87 Difference]: Start difference. First operand 179 states and 202 transitions. Second operand 9 states. [2018-04-05 16:32:04,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:32:04,269 INFO L93 Difference]: Finished difference Result 187 states and 210 transitions. [2018-04-05 16:32:04,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-04-05 16:32:04,278 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2018-04-05 16:32:04,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:32:04,280 INFO L225 Difference]: With dead ends: 187 [2018-04-05 16:32:04,280 INFO L226 Difference]: Without dead ends: 185 [2018-04-05 16:32:04,280 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-04-05 16:32:04,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-04-05 16:32:04,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 180. [2018-04-05 16:32:04,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-04-05 16:32:04,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 202 transitions. [2018-04-05 16:32:04,358 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 202 transitions. Word has length 63 [2018-04-05 16:32:04,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:32:04,358 INFO L459 AbstractCegarLoop]: Abstraction has 180 states and 202 transitions. [2018-04-05 16:32:04,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-04-05 16:32:04,358 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 202 transitions. [2018-04-05 16:32:04,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-05 16:32:04,359 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:32:04,359 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:32:04,359 INFO L408 AbstractCegarLoop]: === Iteration 19 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:32:04,360 INFO L82 PathProgramCache]: Analyzing trace with hash -2061634130, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:32:04,416 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:32:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:32:04,474 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:32:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:05,083 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:32:05,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:05,169 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:32:05,169 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 9 [2018-04-05 16:32:05,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 16:32:05,170 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 16:32:05,170 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:32:05,170 INFO L87 Difference]: Start difference. First operand 180 states and 202 transitions. Second operand 10 states. [2018-04-05 16:32:06,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:32:06,838 INFO L93 Difference]: Finished difference Result 180 states and 202 transitions. [2018-04-05 16:32:06,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-05 16:32:06,839 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2018-04-05 16:32:06,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:32:06,840 INFO L225 Difference]: With dead ends: 180 [2018-04-05 16:32:06,841 INFO L226 Difference]: Without dead ends: 179 [2018-04-05 16:32:06,841 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2018-04-05 16:32:06,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-04-05 16:32:06,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2018-04-05 16:32:06,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-04-05 16:32:06,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 200 transitions. [2018-04-05 16:32:06,865 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 200 transitions. Word has length 66 [2018-04-05 16:32:06,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:32:06,866 INFO L459 AbstractCegarLoop]: Abstraction has 179 states and 200 transitions. [2018-04-05 16:32:06,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 16:32:06,866 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 200 transitions. [2018-04-05 16:32:06,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-04-05 16:32:06,867 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:32:06,867 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:32:06,867 INFO L408 AbstractCegarLoop]: === Iteration 20 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:32:06,867 INFO L82 PathProgramCache]: Analyzing trace with hash -2061634129, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:32:06,886 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:32:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:32:06,941 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:32:07,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:07,414 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:32:08,033 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:32:08,074 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:08,114 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-04-05 16:32:08,119 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:08,127 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:08,127 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:3 [2018-04-05 16:32:08,368 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2018-04-05 16:32:08,369 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-05 16:32:08,410 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:32:08,411 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:17 [2018-04-05 16:32:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:08,873 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:32:08,874 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2018-04-05 16:32:08,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-04-05 16:32:08,874 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-04-05 16:32:08,875 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2018-04-05 16:32:08,875 INFO L87 Difference]: Start difference. First operand 179 states and 200 transitions. Second operand 20 states. [2018-04-05 16:32:10,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:32:10,516 INFO L93 Difference]: Finished difference Result 203 states and 226 transitions. [2018-04-05 16:32:10,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-04-05 16:32:10,517 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 66 [2018-04-05 16:32:10,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:32:10,519 INFO L225 Difference]: With dead ends: 203 [2018-04-05 16:32:10,519 INFO L226 Difference]: Without dead ends: 202 [2018-04-05 16:32:10,519 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2018-04-05 16:32:10,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-04-05 16:32:10,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 185. [2018-04-05 16:32:10,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-04-05 16:32:10,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 206 transitions. [2018-04-05 16:32:10,580 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 206 transitions. Word has length 66 [2018-04-05 16:32:10,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:32:10,581 INFO L459 AbstractCegarLoop]: Abstraction has 185 states and 206 transitions. [2018-04-05 16:32:10,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-04-05 16:32:10,581 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 206 transitions. [2018-04-05 16:32:10,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-04-05 16:32:10,582 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:32:10,582 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:32:10,582 INFO L408 AbstractCegarLoop]: === Iteration 21 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:32:10,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1879697781, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:32:10,622 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:32:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:32:10,667 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:32:10,696 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 [2018-04-05 16:32:10,697 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:10,828 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 [2018-04-05 16:32:10,828 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:10,937 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:10,937 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 16:32:11,154 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:32:11,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 16:32:11,161 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:11,218 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:32:11,222 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:32:11,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:32:11,223 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:11,260 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:11,260 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-05 16:32:11,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-04-05 16:32:11,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:32:11,400 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:11,404 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:11,431 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:11,432 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-04-05 16:32:11,559 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-04-05 16:32:11,564 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 [2018-04-05 16:32:11,565 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:11,593 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:11,627 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:32:11,628 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2018-04-05 16:32:16,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2018-04-05 16:32:16,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 1 [2018-04-05 16:32:16,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:17,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 14 [2018-04-05 16:32:17,062 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-05 16:32:17,085 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:32:17,137 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:32:17,138 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:45, output treesize:32 [2018-04-05 16:32:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:17,706 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:32:19,609 WARN L148 SmtUtils]: Spent 374ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 16:32:20,730 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 13 treesize of output 11 [2018-04-05 16:32:20,764 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:32:20,765 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:20,772 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:20,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:32:20,809 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:35 [2018-04-05 16:32:23,058 WARN L148 SmtUtils]: Spent 1291ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 16:32:23,317 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:23,367 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:32:23,368 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 34 [2018-04-05 16:32:23,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-04-05 16:32:23,369 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-04-05 16:32:23,369 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1071, Unknown=1, NotChecked=0, Total=1190 [2018-04-05 16:32:23,369 INFO L87 Difference]: Start difference. First operand 185 states and 206 transitions. Second operand 35 states. [2018-04-05 16:32:24,205 WARN L148 SmtUtils]: Spent 140ms on a formula simplification that was a NOOP. DAG size: 31 [2018-04-05 16:32:26,058 WARN L151 SmtUtils]: Spent 281ms on a formula simplification. DAG size of input: 68 DAG size of output 48 [2018-04-05 16:32:26,512 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 47 DAG size of output 39 [2018-04-05 16:32:26,910 WARN L151 SmtUtils]: Spent 240ms on a formula simplification. DAG size of input: 59 DAG size of output 41 [2018-04-05 16:32:27,178 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 35 DAG size of output 31 [2018-04-05 16:32:27,947 WARN L151 SmtUtils]: Spent 493ms on a formula simplification. DAG size of input: 56 DAG size of output 46 [2018-04-05 16:32:28,440 WARN L151 SmtUtils]: Spent 246ms on a formula simplification. DAG size of input: 40 DAG size of output 36 [2018-04-05 16:32:28,886 WARN L151 SmtUtils]: Spent 278ms on a formula simplification. DAG size of input: 53 DAG size of output 43 [2018-04-05 16:32:29,416 WARN L151 SmtUtils]: Spent 330ms on a formula simplification. DAG size of input: 57 DAG size of output 50 [2018-04-05 16:32:29,909 WARN L151 SmtUtils]: Spent 186ms on a formula simplification. DAG size of input: 48 DAG size of output 40 [2018-04-05 16:32:30,194 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 40 DAG size of output 34 [2018-04-05 16:32:30,960 WARN L151 SmtUtils]: Spent 322ms on a formula simplification. DAG size of input: 56 DAG size of output 45 [2018-04-05 16:32:31,277 WARN L151 SmtUtils]: Spent 113ms on a formula simplification. DAG size of input: 55 DAG size of output 46 [2018-04-05 16:32:32,021 WARN L151 SmtUtils]: Spent 601ms on a formula simplification. DAG size of input: 59 DAG size of output 52 [2018-04-05 16:32:32,885 WARN L151 SmtUtils]: Spent 552ms on a formula simplification. DAG size of input: 50 DAG size of output 43 [2018-04-05 16:32:33,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:32:33,799 INFO L93 Difference]: Finished difference Result 188 states and 209 transitions. [2018-04-05 16:32:33,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-05 16:32:33,799 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 69 [2018-04-05 16:32:33,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:32:33,801 INFO L225 Difference]: With dead ends: 188 [2018-04-05 16:32:33,801 INFO L226 Difference]: Without dead ends: 187 [2018-04-05 16:32:33,802 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 102 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=566, Invalid=2625, Unknown=1, NotChecked=0, Total=3192 [2018-04-05 16:32:33,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-04-05 16:32:33,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 176. [2018-04-05 16:32:33,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-04-05 16:32:33,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 197 transitions. [2018-04-05 16:32:33,829 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 197 transitions. Word has length 69 [2018-04-05 16:32:33,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:32:33,829 INFO L459 AbstractCegarLoop]: Abstraction has 176 states and 197 transitions. [2018-04-05 16:32:33,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-04-05 16:32:33,830 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 197 transitions. [2018-04-05 16:32:33,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-05 16:32:33,832 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:32:33,832 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:32:33,832 INFO L408 AbstractCegarLoop]: === Iteration 22 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:32:33,832 INFO L82 PathProgramCache]: Analyzing trace with hash -101908377, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:32:33,842 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:32:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:32:33,886 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:32:33,894 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 [2018-04-05 16:32:33,895 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:33,931 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 [2018-04-05 16:32:33,932 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:33,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:33,961 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 16:32:34,053 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:32:34,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-04-05 16:32:34,061 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:34,123 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:32:34,129 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:32:34,130 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:32:34,130 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:34,165 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:34,166 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-04-05 16:32:34,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-04-05 16:32:34,311 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 [2018-04-05 16:32:34,312 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:34,320 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:34,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:32:34,365 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-04-05 16:32:34,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-04-05 16:32:34,475 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 [2018-04-05 16:32:34,476 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:34,543 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:34,616 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-05 16:32:34,616 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:35 [2018-04-05 16:32:38,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2018-04-05 16:32:38,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 1 [2018-04-05 16:32:38,482 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:38,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 15 [2018-04-05 16:32:38,559 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-05 16:32:38,582 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:32:38,652 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:32:38,652 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:52, output treesize:37 [2018-04-05 16:32:38,992 WARN L151 SmtUtils]: Spent 249ms on a formula simplification. DAG size of input: 19 DAG size of output 16 [2018-04-05 16:32:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:39,562 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:32:42,678 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 13 treesize of output 11 [2018-04-05 16:32:42,995 WARN L151 SmtUtils]: Spent 315ms on a formula simplification. DAG size of input: 14 DAG size of output 12 [2018-04-05 16:32:42,998 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-04-05 16:32:42,998 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:43,008 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:43,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:43,150 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:44 [2018-04-05 16:32:44,288 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:44,369 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:32:44,369 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17] total 36 [2018-04-05 16:32:44,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-05 16:32:44,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-05 16:32:44,370 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1208, Unknown=0, NotChecked=0, Total=1332 [2018-04-05 16:32:44,371 INFO L87 Difference]: Start difference. First operand 176 states and 197 transitions. Second operand 37 states. [2018-04-05 16:32:49,006 WARN L151 SmtUtils]: Spent 2164ms on a formula simplification. DAG size of input: 77 DAG size of output 57 [2018-04-05 16:32:49,358 WARN L151 SmtUtils]: Spent 129ms on a formula simplification. DAG size of input: 56 DAG size of output 48 [2018-04-05 16:32:49,826 WARN L151 SmtUtils]: Spent 243ms on a formula simplification. DAG size of input: 66 DAG size of output 54 [2018-04-05 16:32:50,137 WARN L151 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 42 DAG size of output 38 [2018-04-05 16:32:51,019 WARN L151 SmtUtils]: Spent 296ms on a formula simplification. DAG size of input: 65 DAG size of output 55 [2018-04-05 16:32:51,386 WARN L151 SmtUtils]: Spent 152ms on a formula simplification. DAG size of input: 47 DAG size of output 43 [2018-04-05 16:32:52,041 WARN L151 SmtUtils]: Spent 455ms on a formula simplification. DAG size of input: 58 DAG size of output 51 [2018-04-05 16:32:52,611 WARN L151 SmtUtils]: Spent 340ms on a formula simplification. DAG size of input: 62 DAG size of output 57 [2018-04-05 16:32:53,015 WARN L151 SmtUtils]: Spent 203ms on a formula simplification. DAG size of input: 52 DAG size of output 46 [2018-04-05 16:32:53,971 WARN L151 SmtUtils]: Spent 449ms on a formula simplification. DAG size of input: 46 DAG size of output 41 [2018-04-05 16:32:55,140 WARN L151 SmtUtils]: Spent 199ms on a formula simplification. DAG size of input: 60 DAG size of output 51 [2018-04-05 16:32:57,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:32:57,411 INFO L93 Difference]: Finished difference Result 216 states and 230 transitions. [2018-04-05 16:32:57,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-04-05 16:32:57,412 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 72 [2018-04-05 16:32:57,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:32:57,414 INFO L225 Difference]: With dead ends: 216 [2018-04-05 16:32:57,414 INFO L226 Difference]: Without dead ends: 215 [2018-04-05 16:32:57,415 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 106 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=444, Invalid=2862, Unknown=0, NotChecked=0, Total=3306 [2018-04-05 16:32:57,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-04-05 16:32:57,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 119. [2018-04-05 16:32:57,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-04-05 16:32:57,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 127 transitions. [2018-04-05 16:32:57,463 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 127 transitions. Word has length 72 [2018-04-05 16:32:57,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:32:57,464 INFO L459 AbstractCegarLoop]: Abstraction has 119 states and 127 transitions. [2018-04-05 16:32:57,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-05 16:32:57,464 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 127 transitions. [2018-04-05 16:32:57,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-05 16:32:57,470 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:32:57,470 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:32:57,470 INFO L408 AbstractCegarLoop]: === Iteration 23 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:32:57,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1870819696, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:32:57,490 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:32:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:32:57,532 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:32:57,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:57,744 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:32:57,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2018-04-05 16:32:57,900 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:32:57,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:32:57,948 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:3 [2018-04-05 16:32:58,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:58,275 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:32:58,275 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2018-04-05 16:32:58,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-04-05 16:32:58,276 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-04-05 16:32:58,276 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2018-04-05 16:32:58,277 INFO L87 Difference]: Start difference. First operand 119 states and 127 transitions. Second operand 14 states. [2018-04-05 16:32:59,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:32:59,133 INFO L93 Difference]: Finished difference Result 125 states and 133 transitions. [2018-04-05 16:32:59,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:32:59,134 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 73 [2018-04-05 16:32:59,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:32:59,135 INFO L225 Difference]: With dead ends: 125 [2018-04-05 16:32:59,135 INFO L226 Difference]: Without dead ends: 124 [2018-04-05 16:32:59,136 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-04-05 16:32:59,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-04-05 16:32:59,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 118. [2018-04-05 16:32:59,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-04-05 16:32:59,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 126 transitions. [2018-04-05 16:32:59,164 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 126 transitions. Word has length 73 [2018-04-05 16:32:59,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:32:59,165 INFO L459 AbstractCegarLoop]: Abstraction has 118 states and 126 transitions. [2018-04-05 16:32:59,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-04-05 16:32:59,169 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 126 transitions. [2018-04-05 16:32:59,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-04-05 16:32:59,170 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:32:59,170 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:32:59,170 INFO L408 AbstractCegarLoop]: === Iteration 24 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:32:59,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1870819695, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:32:59,194 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:32:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:32:59,252 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:32:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:59,571 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:32:59,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:32:59,656 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:32:59,656 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 9 [2018-04-05 16:32:59,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 16:32:59,657 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 16:32:59,657 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:32:59,657 INFO L87 Difference]: Start difference. First operand 118 states and 126 transitions. Second operand 10 states. [2018-04-05 16:33:00,696 WARN L148 SmtUtils]: Spent 141ms on a formula simplification that was a NOOP. DAG size: 12 [2018-04-05 16:33:01,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:33:01,016 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2018-04-05 16:33:01,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-04-05 16:33:01,017 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 73 [2018-04-05 16:33:01,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:33:01,018 INFO L225 Difference]: With dead ends: 118 [2018-04-05 16:33:01,018 INFO L226 Difference]: Without dead ends: 116 [2018-04-05 16:33:01,018 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2018-04-05 16:33:01,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-04-05 16:33:01,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-04-05 16:33:01,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-04-05 16:33:01,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 124 transitions. [2018-04-05 16:33:01,058 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 124 transitions. Word has length 73 [2018-04-05 16:33:01,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:33:01,059 INFO L459 AbstractCegarLoop]: Abstraction has 116 states and 124 transitions. [2018-04-05 16:33:01,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 16:33:01,059 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 124 transitions. [2018-04-05 16:33:01,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-04-05 16:33:01,060 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:33:01,060 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:33:01,060 INFO L408 AbstractCegarLoop]: === Iteration 25 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:33:01,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1742816140, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:33:01,082 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:33:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:33:01,128 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:33:01,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:33:01,523 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:33:01,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:33:01,610 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:33:01,610 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 10 [2018-04-05 16:33:01,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-04-05 16:33:01,611 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-04-05 16:33:01,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-04-05 16:33:01,611 INFO L87 Difference]: Start difference. First operand 116 states and 124 transitions. Second operand 11 states. [2018-04-05 16:33:02,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:33:02,591 INFO L93 Difference]: Finished difference Result 116 states and 124 transitions. [2018-04-05 16:33:02,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:33:02,592 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 74 [2018-04-05 16:33:02,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:33:02,593 INFO L225 Difference]: With dead ends: 116 [2018-04-05 16:33:02,593 INFO L226 Difference]: Without dead ends: 115 [2018-04-05 16:33:02,593 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2018-04-05 16:33:02,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-04-05 16:33:02,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-04-05 16:33:02,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-04-05 16:33:02,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 123 transitions. [2018-04-05 16:33:02,635 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 123 transitions. Word has length 74 [2018-04-05 16:33:02,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:33:02,636 INFO L459 AbstractCegarLoop]: Abstraction has 115 states and 123 transitions. [2018-04-05 16:33:02,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-04-05 16:33:02,636 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 123 transitions. [2018-04-05 16:33:02,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-04-05 16:33:02,637 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:33:02,637 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:33:02,637 INFO L408 AbstractCegarLoop]: === Iteration 26 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:33:02,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1742816139, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:33:02,665 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:33:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:33:02,758 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:33:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:33:03,319 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:33:04,303 WARN L148 SmtUtils]: Spent 120ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-05 16:33:04,321 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:33:04,321 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:33:04,361 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-04-05 16:33:04,362 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:33:04,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:33:04,369 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:3 [2018-04-05 16:33:04,620 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2018-04-05 16:33:04,621 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-04-05 16:33:04,653 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:33:04,654 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:17 [2018-04-05 16:33:05,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:33:05,168 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:33:05,168 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 23 [2018-04-05 16:33:05,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-04-05 16:33:05,169 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-04-05 16:33:05,169 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2018-04-05 16:33:05,169 INFO L87 Difference]: Start difference. First operand 115 states and 123 transitions. Second operand 24 states. [2018-04-05 16:33:07,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:33:07,763 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2018-04-05 16:33:07,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-05 16:33:07,764 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 74 [2018-04-05 16:33:07,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:33:07,765 INFO L225 Difference]: With dead ends: 156 [2018-04-05 16:33:07,765 INFO L226 Difference]: Without dead ends: 155 [2018-04-05 16:33:07,766 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=150, Invalid=1040, Unknown=0, NotChecked=0, Total=1190 [2018-04-05 16:33:07,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-04-05 16:33:07,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 123. [2018-04-05 16:33:07,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-04-05 16:33:07,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 132 transitions. [2018-04-05 16:33:07,812 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 132 transitions. Word has length 74 [2018-04-05 16:33:07,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:33:07,812 INFO L459 AbstractCegarLoop]: Abstraction has 123 states and 132 transitions. [2018-04-05 16:33:07,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-04-05 16:33:07,812 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 132 transitions. [2018-04-05 16:33:07,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-04-05 16:33:07,813 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:33:07,813 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:33:07,813 INFO L408 AbstractCegarLoop]: === Iteration 27 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:33:07,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1888847233, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:33:07,839 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:33:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:33:07,909 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:33:07,934 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 14 treesize of output 11 [2018-04-05 16:33:07,945 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 11 treesize of output 10 [2018-04-05 16:33:07,946 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:33:07,962 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:33:07,971 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-04-05 16:33:07,972 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:14, output treesize:10 [2018-04-05 16:33:10,403 WARN L148 SmtUtils]: Spent 2014ms on a formula simplification that was a NOOP. DAG size: 17 [2018-04-05 16:33:14,510 WARN L151 SmtUtils]: Spent 4045ms on a formula simplification. DAG size of input: 23 DAG size of output 15 [2018-04-05 16:33:16,676 WARN L148 SmtUtils]: Spent 2085ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 16:33:18,793 WARN L148 SmtUtils]: Spent 2024ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 16:33:20,917 WARN L148 SmtUtils]: Spent 2030ms on a formula simplification that was a NOOP. DAG size: 21 [2018-04-05 16:33:23,024 WARN L148 SmtUtils]: Spent 2026ms on a formula simplification that was a NOOP. DAG size: 21 [2018-04-05 16:33:23,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 34 [2018-04-05 16:33:23,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2018-04-05 16:33:23,506 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:33:23,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 3 [2018-04-05 16:33:23,601 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:33:23,633 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:33:23,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:33:23,639 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:36, output treesize:3 [2018-04-05 16:33:23,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:33:23,769 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:33:44,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:33:44,217 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:33:44,218 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [20, 17] imperfect sequences [] total 34 [2018-04-05 16:33:44,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-04-05 16:33:44,218 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-04-05 16:33:44,219 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=998, Unknown=9, NotChecked=0, Total=1122 [2018-04-05 16:33:44,219 INFO L87 Difference]: Start difference. First operand 123 states and 132 transitions. Second operand 34 states. [2018-04-05 16:33:48,088 WARN L148 SmtUtils]: Spent 2047ms on a formula simplification that was a NOOP. DAG size: 27 [2018-04-05 16:33:50,257 WARN L148 SmtUtils]: Spent 2046ms on a formula simplification that was a NOOP. DAG size: 25 [2018-04-05 16:33:52,742 WARN L148 SmtUtils]: Spent 2032ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-05 16:33:57,510 WARN L148 SmtUtils]: Spent 4040ms on a formula simplification that was a NOOP. DAG size: 23 [2018-04-05 16:34:01,783 WARN L148 SmtUtils]: Spent 4042ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-05 16:34:08,147 WARN L148 SmtUtils]: Spent 6055ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 16:34:12,406 WARN L148 SmtUtils]: Spent 4038ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-05 16:34:16,673 WARN L148 SmtUtils]: Spent 4037ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 16:34:20,957 WARN L148 SmtUtils]: Spent 4043ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 16:34:23,142 WARN L148 SmtUtils]: Spent 2030ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-05 16:34:25,565 WARN L148 SmtUtils]: Spent 2032ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 16:34:27,798 WARN L148 SmtUtils]: Spent 2026ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-05 16:34:30,065 WARN L148 SmtUtils]: Spent 2030ms on a formula simplification that was a NOOP. DAG size: 31 [2018-04-05 16:34:32,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:34:32,655 INFO L93 Difference]: Finished difference Result 256 states and 277 transitions. [2018-04-05 16:34:32,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-04-05 16:34:32,656 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 82 [2018-04-05 16:34:32,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:34:32,658 INFO L225 Difference]: With dead ends: 256 [2018-04-05 16:34:32,658 INFO L226 Difference]: Without dead ends: 129 [2018-04-05 16:34:32,660 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 130 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 80.8s TimeCoverageRelationStatistics Valid=318, Invalid=2534, Unknown=10, NotChecked=0, Total=2862 [2018-04-05 16:34:32,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-04-05 16:34:32,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 126. [2018-04-05 16:34:32,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-04-05 16:34:32,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 135 transitions. [2018-04-05 16:34:32,687 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 135 transitions. Word has length 82 [2018-04-05 16:34:32,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:34:32,687 INFO L459 AbstractCegarLoop]: Abstraction has 126 states and 135 transitions. [2018-04-05 16:34:32,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-04-05 16:34:32,687 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 135 transitions. [2018-04-05 16:34:32,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-04-05 16:34:32,688 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:34:32,688 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:34:32,688 INFO L408 AbstractCegarLoop]: === Iteration 28 === [__U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr8RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr9RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr4RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr6RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr7RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrncmpErr5RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr2RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr1RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrstrErr3RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr0RequiresViolation, __U_MULTI_fopenbsd_cstrstr_alloca_true_valid_memsafety_true_termination_i__cstrlenErr1RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:34:32,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1938968188, now seen corresponding path program 1 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:34:32,716 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:34:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:34:32,769 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:34:32,794 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 [2018-04-05 16:34:32,795 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:34:32,816 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:34:32,817 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-04-05 16:34:32,907 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:34:32,915 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:34:32,916 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-04-05 16:34:32,916 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:34:32,940 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:34:32,941 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-04-05 16:34:33,068 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-04-05 16:34:33,080 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 11 treesize of output 10 [2018-04-05 16:34:33,081 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:34:33,087 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:34:33,133 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-05 16:34:33,134 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-04-05 16:34:33,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-04-05 16:34:33,221 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 11 treesize of output 10 [2018-04-05 16:34:33,222 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:34:33,246 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:34:33,282 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-04-05 16:34:33,282 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:35 [2018-04-05 16:34:40,487 WARN L148 SmtUtils]: Spent 2037ms on a formula simplification that was a NOOP. DAG size: 57 [2018-04-05 16:34:42,696 WARN L148 SmtUtils]: Spent 2032ms on a formula simplification that was a NOOP. DAG size: 57 [2018-04-05 16:34:42,970 WARN L151 SmtUtils]: Spent 123ms on a formula simplification. DAG size of input: 62 DAG size of output 40 [2018-04-05 16:34:52,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 45 [2018-04-05 16:34:52,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2018-04-05 16:34:52,818 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:34:52,870 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:34:52,901 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 31 [2018-04-05 16:34:52,902 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-05 16:34:52,987 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:34:53,122 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:34:53,122 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:75, output treesize:51 [2018-04-05 16:34:53,482 WARN L151 SmtUtils]: Spent 227ms on a formula simplification. DAG size of input: 21 DAG size of output 20 [2018-04-05 16:34:54,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:34:54,001 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:35:06,359 WARN L151 SmtUtils]: Spent 195ms on a formula simplification. DAG size of input: 44 DAG size of output 38 [2018-04-05 16:35:06,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-04-05 16:35:06,364 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:35:06,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2018-04-05 16:35:06,756 WARN L151 SmtUtils]: Spent 299ms on a formula simplification. DAG size of input: 46 DAG size of output 39 [2018-04-05 16:35:06,765 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:35:06,810 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2018-04-05 16:35:06,811 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-04-05 16:35:06,906 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:35:06,979 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:35:06,979 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:88, output treesize:24 [2018-04-05 16:35:07,551 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:35:07,588 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:35:07,588 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 28] total 58 [2018-04-05 16:35:07,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-04-05 16:35:07,589 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-04-05 16:35:07,590 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=3194, Unknown=8, NotChecked=0, Total=3422 [2018-04-05 16:35:07,590 INFO L87 Difference]: Start difference. First operand 126 states and 135 transitions. Second operand 59 states. [2018-04-05 16:35:11,596 WARN L148 SmtUtils]: Spent 2073ms on a formula simplification that was a NOOP. DAG size: 55 [2018-04-05 16:35:12,869 WARN L148 SmtUtils]: Spent 112ms on a formula simplification that was a NOOP. DAG size: 57 [2018-04-05 16:35:23,431 WARN L151 SmtUtils]: Spent 4237ms on a formula simplification. DAG size of input: 92 DAG size of output 81 [2018-04-05 16:35:24,049 WARN L151 SmtUtils]: Spent 299ms on a formula simplification. DAG size of input: 117 DAG size of output 93 [2018-04-05 16:35:24,662 WARN L148 SmtUtils]: Spent 168ms on a formula simplification that was a NOOP. DAG size: 64 [2018-04-05 16:35:25,837 WARN L151 SmtUtils]: Spent 440ms on a formula simplification. DAG size of input: 80 DAG size of output 70 [2018-04-05 16:35:27,425 WARN L151 SmtUtils]: Spent 502ms on a formula simplification. DAG size of input: 82 DAG size of output 72 [2018-04-05 16:35:29,450 WARN L151 SmtUtils]: Spent 802ms on a formula simplification. DAG size of input: 109 DAG size of output 74 [2018-04-05 16:35:30,370 WARN L151 SmtUtils]: Spent 506ms on a formula simplification. DAG size of input: 94 DAG size of output 69 [2018-04-05 16:35:33,015 WARN L151 SmtUtils]: Spent 347ms on a formula simplification. DAG size of input: 92 DAG size of output 67 Received shutdown request... [2018-04-05 16:35:34,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-04-05 16:35:34,026 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-05 16:35:34,036 WARN L197 ceAbstractionStarter]: Timeout [2018-04-05 16:35:34,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:35:34 BoogieIcfgContainer [2018-04-05 16:35:34,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-05 16:35:34,039 INFO L168 Benchmark]: Toolchain (without parser) took 317689.55 ms. Allocated memory was 305.7 MB in the beginning and 602.4 MB in the end (delta: 296.7 MB). Free memory was 243.7 MB in the beginning and 495.4 MB in the end (delta: -251.7 MB). Peak memory consumption was 45.0 MB. Max. memory is 5.3 GB. [2018-04-05 16:35:34,042 INFO L168 Benchmark]: CDTParser took 2.75 ms. Allocated memory is still 305.7 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-05 16:35:34,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 853.30 ms. Allocated memory is still 305.7 MB. Free memory was 242.7 MB in the beginning and 217.6 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. [2018-04-05 16:35:34,043 INFO L168 Benchmark]: Boogie Preprocessor took 163.07 ms. Allocated memory is still 305.7 MB. Free memory was 217.6 MB in the beginning and 215.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-04-05 16:35:34,043 INFO L168 Benchmark]: RCFGBuilder took 1977.00 ms. Allocated memory was 305.7 MB in the beginning and 467.7 MB in the end (delta: 162.0 MB). Free memory was 215.6 MB in the beginning and 391.1 MB in the end (delta: -175.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. [2018-04-05 16:35:34,044 INFO L168 Benchmark]: TraceAbstraction took 314679.15 ms. Allocated memory was 467.7 MB in the beginning and 602.4 MB in the end (delta: 134.7 MB). Free memory was 389.7 MB in the beginning and 495.4 MB in the end (delta: -105.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 5.3 GB. [2018-04-05 16:35:34,047 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.75 ms. Allocated memory is still 305.7 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 853.30 ms. Allocated memory is still 305.7 MB. Free memory was 242.7 MB in the beginning and 217.6 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 163.07 ms. Allocated memory is still 305.7 MB. Free memory was 217.6 MB in the beginning and 215.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 1977.00 ms. Allocated memory was 305.7 MB in the beginning and 467.7 MB in the end (delta: 162.0 MB). Free memory was 215.6 MB in the beginning and 391.1 MB in the end (delta: -175.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 314679.15 ms. Allocated memory was 467.7 MB in the beginning and 602.4 MB in the end (delta: 134.7 MB). Free memory was 389.7 MB in the beginning and 495.4 MB in the end (delta: -105.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 554]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 554). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 556]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 556). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 554]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 554). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 556]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 556). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 554]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 554). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 554]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 554). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 555]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 555). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 555]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 555). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 555]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 555). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 555]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 555). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 566]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 566). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 570]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 570). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 566]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 566). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 570]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 570). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 544]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 544). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 544]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 544). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 590]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 590). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 589]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 589). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 590]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 590). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 578]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 578). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 589]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 589). Cancelled while BasicCegarLoop was constructing difference of abstraction (126states) and interpolant automaton (currently 28 states, 59 states before enhancement), while ReachableStatesComputation was computing reachable states (68 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 160 locations, 21 error locations. TIMEOUT Result, 314.5s OverallTime, 28 OverallIterations, 3 TraceHistogramMax, 169.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3533 SDtfs, 5412 SDslu, 24851 SDs, 0 SdLazy, 12049 SolverSat, 508 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 64.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3139 GetRequests, 2438 SyntacticMatches, 35 SemanticMatches, 666 ConstructedPredicates, 20 IntricatePredicates, 0 DeprecatedPredicates, 4616 ImplicationChecksByTransitivity, 224.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=237occurred in iteration=10, 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: 1.1s AutomataMinimizationTime, 27 MinimizatonAttempts, 585 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 140.1s InterpolantComputationTime, 1462 NumberOfCodeBlocks, 1462 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2868 ConstructedInterpolants, 630 QuantifiedInterpolants, 1923381 SizeOfPredicates, 339 NumberOfNonLiveVariables, 4488 ConjunctsInSsa, 710 ConjunctsInUnsatCore, 56 InterpolantComputations, 46 PerfectInterpolantSequences, 15/78 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-05_16-35-34-061.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-05_16-35-34-061.csv Completed graceful shutdown