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_cstrncpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-835382a-m [2018-04-05 16:24:23,424 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-05 16:24:23,427 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-05 16:24:23,479 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-04-05 16:24:23,592 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 16:24:23,662 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-05 16:24:23,662 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-05 16:24:23,663 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-05 16:24:23,663 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-05 16:24:23,663 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-05 16:24:23,664 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-05 16:24:23,664 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-05 16:24:23,664 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-05 16:24:23,664 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-05 16:24:23,664 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-05 16:24:23,665 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-05 16:24:23,666 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-05 16:24:23,666 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-05 16:24:23,666 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-05 16:24:23,666 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-05 16:24:23,667 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-05 16:24:23,667 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-05 16:24:23,667 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-05 16:24:23,675 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-05 16:24:23,675 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-05 16:24:23,675 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-05 16:24:23,676 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-05 16:24:23,676 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-05 16:24:23,676 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-05 16:24:23,676 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-05 16:24:23,676 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-05 16:24:23,676 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-05 16:24:23,677 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-05 16:24:23,677 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-05 16:24:23,677 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-05 16:24:23,677 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-05 16:24:23,677 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-05 16:24:23,677 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-05 16:24:23,678 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-05 16:24:23,678 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-05 16:24:23,687 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-05 16:24:23,687 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-05 16:24:23,767 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-05 16:24:23,791 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-05 16:24:23,801 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-05 16:24:23,803 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-05 16:24:23,804 INFO L276 PluginConnector]: CDTParser initialized [2018-04-05 16:24:23,805 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,360 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG86b3a4120 [2018-04-05 16:24:24,882 INFO L287 CDTParser]: IsIndexed: true [2018-04-05 16:24:24,882 INFO L288 CDTParser]: Found 1 translation units. [2018-04-05 16:24:24,883 INFO L168 CDTParser]: Scanning openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,925 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-05 16:24:24,926 INFO L215 ultiparseSymbolTable]: [2018-04-05 16:24:24,926 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-05 16:24:24,926 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpy ('cstrncpy') in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,926 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,926 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,926 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,926 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-05 16:24:24,927 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,927 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,927 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,927 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,927 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,927 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,928 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,939 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,939 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,939 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,940 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,940 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,940 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,940 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,940 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,940 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,940 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,940 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,941 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,942 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,943 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,944 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,945 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,945 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,945 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,945 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,948 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,949 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,949 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,949 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,949 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,949 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,949 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,949 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,950 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,950 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,950 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,950 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,950 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,950 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,950 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,951 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,951 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,951 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,951 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,951 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,951 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,951 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,951 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,951 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,952 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,962 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,963 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,964 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,965 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,966 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,968 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,969 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,970 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,970 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,970 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,970 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,970 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,970 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,970 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,970 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,971 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,979 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,979 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,979 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,984 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,984 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:24,984 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:25,109 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG86b3a4120 [2018-04-05 16:24:25,121 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-05 16:24:25,126 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-05 16:24:25,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-05 16:24:25,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-05 16:24:25,141 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-05 16:24:25,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:24:25" (1/1) ... [2018-04-05 16:24:25,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fbab2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:24:25, skipping insertion in model container [2018-04-05 16:24:25,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:24:25" (1/1) ... [2018-04-05 16:24:25,168 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:24:25,281 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-05 16:24:25,688 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:24:25,800 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-05 16:24:25,825 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-05 16:24:25,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:24:25 WrapperNode [2018-04-05 16:24:25,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-05 16:24:25,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-05 16:24:25,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-05 16:24:25,887 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-05 16:24:25,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:24:25" (1/1) ... [2018-04-05 16:24:25,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:24:25" (1/1) ... [2018-04-05 16:24:25,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:24:25" (1/1) ... [2018-04-05 16:24:25,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:24:25" (1/1) ... [2018-04-05 16:24:25,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:24:25" (1/1) ... [2018-04-05 16:24:25,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:24:25" (1/1) ... [2018-04-05 16:24:26,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:24:25" (1/1) ... [2018-04-05 16:24:26,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-05 16:24:26,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-05 16:24:26,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-05 16:24:26,006 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-05 16:24:26,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:24:25" (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 16:24:26,379 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-05 16:24:26,379 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-05 16:24:26,379 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 16:24:26,380 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 16:24:26,385 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpy [2018-04-05 16:24:26,385 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-05 16:24:26,385 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-05 16:24:26,385 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-05 16:24:26,385 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-05 16:24:26,385 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-05 16:24:26,386 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-05 16:24:26,392 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-05 16:24:26,392 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-05 16:24:26,392 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-05 16:24:26,393 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-05 16:24:26,393 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-05 16:24:26,393 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-05 16:24:26,393 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-05 16:24:26,393 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-05 16:24:26,393 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-05 16:24:26,394 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-05 16:24:26,394 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-05 16:24:26,394 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-05 16:24:26,394 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-05 16:24:26,394 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-05 16:24:26,394 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-05 16:24:26,394 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-05 16:24:26,394 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-05 16:24:26,394 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-05 16:24:26,395 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-05 16:24:26,395 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-05 16:24:26,395 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-05 16:24:26,395 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-05 16:24:26,395 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-05 16:24:26,395 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-05 16:24:26,395 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-05 16:24:26,395 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-05 16:24:26,396 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-05 16:24:26,396 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-05 16:24:26,396 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-05 16:24:26,396 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-05 16:24:26,396 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-05 16:24:26,396 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-05 16:24:26,396 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-05 16:24:26,396 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-05 16:24:26,396 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-05 16:24:26,397 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-05 16:24:26,420 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-05 16:24:26,420 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-05 16:24:26,420 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-05 16:24:26,420 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-05 16:24:26,421 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-05 16:24:26,421 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-05 16:24:26,421 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-05 16:24:26,421 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-05 16:24:26,421 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-05 16:24:26,421 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-05 16:24:26,421 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-05 16:24:26,421 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-05 16:24:26,421 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-05 16:24:26,422 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-05 16:24:26,422 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-05 16:24:26,422 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-05 16:24:26,422 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-05 16:24:26,422 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-05 16:24:26,422 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-05 16:24:26,422 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-05 16:24:26,422 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-05 16:24:26,422 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-05 16:24:26,423 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-05 16:24:26,423 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-05 16:24:26,423 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-05 16:24:26,423 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-05 16:24:26,423 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-05 16:24:26,423 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-05 16:24:26,423 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-05 16:24:26,423 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-05 16:24:26,423 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-05 16:24:26,424 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-05 16:24:26,424 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-05 16:24:26,435 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-05 16:24:26,435 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-05 16:24:26,435 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-05 16:24:26,435 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-05 16:24:26,436 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-05 16:24:26,436 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-05 16:24:26,436 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-05 16:24:26,436 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-05 16:24:26,436 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-05 16:24:26,436 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-05 16:24:26,436 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-05 16:24:26,436 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-05 16:24:26,436 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-05 16:24:26,436 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-05 16:24:26,437 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-05 16:24:26,437 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-05 16:24:26,437 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-05 16:24:26,437 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-05 16:24:26,437 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-05 16:24:26,437 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-05 16:24:26,437 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-05 16:24:26,437 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-05 16:24:26,437 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-05 16:24:26,438 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-05 16:24:26,438 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-05 16:24:26,438 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-05 16:24:26,438 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-05 16:24:26,438 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-05 16:24:26,438 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-05 16:24:26,438 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpy [2018-04-05 16:24:26,438 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-05 16:24:26,438 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-05 16:24:26,439 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-05 16:24:26,447 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-05 16:24:26,447 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-05 16:24:26,447 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-05 16:24:26,447 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-05 16:24:26,447 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-05 16:24:27,713 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-05 16:24:27,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:24:27 BoogieIcfgContainer [2018-04-05 16:24:27,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-05 16:24:27,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-05 16:24:27,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-05 16:24:27,741 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-05 16:24:27,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:24:25" (1/3) ... [2018-04-05 16:24:27,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c6ab9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:24:27, skipping insertion in model container [2018-04-05 16:24:27,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:24:25" (2/3) ... [2018-04-05 16:24:27,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c6ab9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:24:27, skipping insertion in model container [2018-04-05 16:24:27,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:24:27" (3/3) ... [2018-04-05 16:24:27,750 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-05 16:24:27,784 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-05 16:24:27,808 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-05 16:24:27,956 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-05 16:24:27,968 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-05 16:24:27,968 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-05 16:24:27,968 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-05 16:24:27,968 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-05 16:24:27,968 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-05 16:24:27,969 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-05 16:24:27,969 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-05 16:24:27,969 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-05 16:24:27,970 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-05 16:24:28,001 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-04-05 16:24:28,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-05 16:24:28,021 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:24:28,022 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 16:24:28,023 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:24:28,031 INFO L82 PathProgramCache]: Analyzing trace with hash 420840203, 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 16:24:28,080 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:24:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:24:28,200 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:24:28,312 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 16:24:28,315 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:28,345 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:28,346 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:24:28,414 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 16:24:28,414 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:24:28,479 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 16:24:28,562 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:24:28,562 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-05 16:24:28,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-05 16:24:28,595 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-05 16:24:28,596 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-05 16:24:28,599 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 4 states. [2018-04-05 16:24:29,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:24:29,061 INFO L93 Difference]: Finished difference Result 93 states and 99 transitions. [2018-04-05 16:24:29,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-05 16:24:29,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-04-05 16:24:29,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:24:29,088 INFO L225 Difference]: With dead ends: 93 [2018-04-05 16:24:29,088 INFO L226 Difference]: Without dead ends: 75 [2018-04-05 16:24:29,093 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 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 16:24:29,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-04-05 16:24:29,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-04-05 16:24:29,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-05 16:24:29,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2018-04-05 16:24:29,187 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 19 [2018-04-05 16:24:29,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:24:29,188 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2018-04-05 16:24:29,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-05 16:24:29,188 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2018-04-05 16:24:29,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-05 16:24:29,189 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:24:29,190 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 16:24:29,190 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:24:29,190 INFO L82 PathProgramCache]: Analyzing trace with hash 420840204, 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 16:24:29,218 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:24:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:24:29,255 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:24:29,320 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 16:24:29,320 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:29,359 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:29,360 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-05 16:24:29,515 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 16:24:29,515 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:24:29,806 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 16:24:29,915 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:24:29,915 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-05 16:24:29,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:24:29,919 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:24:29,919 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:24:29,919 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 7 states. [2018-04-05 16:24:30,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:24:30,375 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2018-04-05 16:24:30,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:24:30,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-04-05 16:24:30,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:24:30,379 INFO L225 Difference]: With dead ends: 75 [2018-04-05 16:24:30,380 INFO L226 Difference]: Without dead ends: 74 [2018-04-05 16:24:30,383 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-05 16:24:30,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-04-05 16:24:30,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-04-05 16:24:30,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-04-05 16:24:30,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2018-04-05 16:24:30,421 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 19 [2018-04-05 16:24:30,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:24:30,422 INFO L459 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2018-04-05 16:24:30,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:24:30,422 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2018-04-05 16:24:30,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-05 16:24:30,423 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:24:30,423 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:24:30,424 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:24:30,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1093490651, 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 16:24:30,438 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:24:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:24:30,487 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:24:31,419 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 16:24:31,419 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:24:31,457 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 16:24:31,541 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:24:31,542 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-05 16:24:31,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-05 16:24:31,543 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-05 16:24:31,543 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:24:31,543 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 7 states. [2018-04-05 16:24:32,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:24:32,713 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2018-04-05 16:24:32,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-05 16:24:32,714 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-04-05 16:24:32,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:24:32,718 INFO L225 Difference]: With dead ends: 77 [2018-04-05 16:24:32,719 INFO L226 Difference]: Without dead ends: 76 [2018-04-05 16:24:32,722 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:24:32,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-04-05 16:24:32,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2018-04-05 16:24:32,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-04-05 16:24:32,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2018-04-05 16:24:32,741 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 32 [2018-04-05 16:24:32,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:24:32,741 INFO L459 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2018-04-05 16:24:32,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-05 16:24:32,742 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2018-04-05 16:24:32,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-05 16:24:32,751 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:24:32,751 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:24:32,751 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:24:32,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1093490652, 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 16:24:32,817 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:24:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:24:32,888 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:24:33,448 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 16:24:33,449 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:24:33,520 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 16:24:33,521 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:33,581 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 16:24:33,582 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:33,609 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 16:24:33,609 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-05 16:24:33,690 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 16:24:33,763 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:24:33,763 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-04-05 16:24:33,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-05 16:24:33,764 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-05 16:24:33,764 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-05 16:24:33,769 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 10 states. [2018-04-05 16:24:34,651 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 22 [2018-04-05 16:24:35,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:24:35,112 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2018-04-05 16:24:35,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-05 16:24:35,113 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-04-05 16:24:35,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:24:35,114 INFO L225 Difference]: With dead ends: 80 [2018-04-05 16:24:35,114 INFO L226 Difference]: Without dead ends: 79 [2018-04-05 16:24:35,115 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-04-05 16:24:35,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-05 16:24:35,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-04-05 16:24:35,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-05 16:24:35,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2018-04-05 16:24:35,147 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 32 [2018-04-05 16:24:35,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:24:35,147 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2018-04-05 16:24:35,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-05 16:24:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2018-04-05 16:24:35,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-05 16:24:35,149 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:24:35,149 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] [2018-04-05 16:24:35,149 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:24:35,149 INFO L82 PathProgramCache]: Analyzing trace with hash -461528198, 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 16:24:35,193 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:24:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:24:35,242 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:24:35,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:24:35,272 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:35,285 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:35,285 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:24:35,364 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 16:24:35,364 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:35,385 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:35,386 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-05 16:24:35,688 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 16:24:35,689 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:24:35,937 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 16:24:35,988 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:24:35,988 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2018-04-05 16:24:35,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:24:35,989 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:24:35,989 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-04-05 16:24:35,989 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 12 states. [2018-04-05 16:24:37,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:24:37,117 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2018-04-05 16:24:37,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:24:37,118 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2018-04-05 16:24:37,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:24:37,120 INFO L225 Difference]: With dead ends: 90 [2018-04-05 16:24:37,120 INFO L226 Difference]: Without dead ends: 89 [2018-04-05 16:24:37,120 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-04-05 16:24:37,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-04-05 16:24:37,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 78. [2018-04-05 16:24:37,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-04-05 16:24:37,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2018-04-05 16:24:37,143 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 33 [2018-04-05 16:24:37,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:24:37,150 INFO L459 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2018-04-05 16:24:37,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:24:37,150 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2018-04-05 16:24:37,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-05 16:24:37,151 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:24:37,152 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] [2018-04-05 16:24:37,152 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:24:37,152 INFO L82 PathProgramCache]: Analyzing trace with hash -461528197, 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 16:24:37,169 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:24:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:24:37,205 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:24:37,232 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 16:24:37,233 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:37,271 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 16:24:37,272 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:37,308 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:37,308 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-05 16:24:37,430 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:24:37,436 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 16:24:37,436 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:37,523 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:24:37,527 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:24:37,528 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 16:24:37,528 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:37,598 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:37,598 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 16:24:38,013 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 16:24:38,016 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:24:38,913 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 10 treesize of output 3 [2018-04-05 16:24:38,914 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:38,941 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 11 treesize of output 15 [2018-04-05 16:24:39,058 WARN L148 SmtUtils]: Spent 116ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 16:24:39,060 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-05 16:24:39,060 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:39,068 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 3 [2018-04-05 16:24:39,068 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:39,094 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:39,116 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:39,117 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:21, output treesize:3 [2018-04-05 16:24:39,134 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 16:24:39,192 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:24:39,192 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2018-04-05 16:24:39,193 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-05 16:24:39,193 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-05 16:24:39,193 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-04-05 16:24:39,194 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand 18 states. [2018-04-05 16:24:41,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:24:41,183 INFO L93 Difference]: Finished difference Result 83 states and 89 transitions. [2018-04-05 16:24:41,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-05 16:24:41,183 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 33 [2018-04-05 16:24:41,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:24:41,184 INFO L225 Difference]: With dead ends: 83 [2018-04-05 16:24:41,184 INFO L226 Difference]: Without dead ends: 82 [2018-04-05 16:24:41,185 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2018-04-05 16:24:41,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-04-05 16:24:41,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2018-04-05 16:24:41,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-05 16:24:41,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2018-04-05 16:24:41,229 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 33 [2018-04-05 16:24:41,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:24:41,230 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2018-04-05 16:24:41,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-05 16:24:41,230 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2018-04-05 16:24:41,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-05 16:24:41,231 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:24:41,231 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] [2018-04-05 16:24:41,232 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:24:41,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1503071732, 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 16:24:41,261 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:24:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:24:41,305 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:24:41,524 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:24:41,525 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 16:24:41,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-05 16:24:41,541 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:41,590 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:41,641 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 16:24:41,641 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:24:41,777 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-04-05 16:24:41,793 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-04-05 16:24:41,799 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 16:24:41,800 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:24:41,968 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_11| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_11| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_11| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_11|))))) is different from false [2018-04-05 16:24:41,999 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_10| Int) (|v_main_#t~malloc11.base_11| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_10| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_11|) 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_10|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_11| 1) |v_main_#t~malloc10.base_10| 0) |v_main_#t~malloc11.base_11| 0) |c_old(#valid)|)))) is different from false [2018-04-05 16:24:42,109 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 16:24:42,160 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:24:42,161 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:24:42,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:24:42,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:24:42,162 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:24:42,162 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 12 states. [2018-04-05 16:24:42,287 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc10.base_10| Int) (|v_main_#t~malloc11.base_11| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_10| 1))) (or (not (= (select .cse0 |v_main_#t~malloc11.base_11|) 0)) (not (= (select |c_#valid| |v_main_#t~malloc10.base_10|) 0)) (= (store (store (store .cse0 |v_main_#t~malloc11.base_11| 1) |v_main_#t~malloc10.base_10| 0) |v_main_#t~malloc11.base_11| 0) |c_old(#valid)|)))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-04-05 16:24:43,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:24:43,870 INFO L93 Difference]: Finished difference Result 143 states and 152 transitions. [2018-04-05 16:24:43,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:24:43,871 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2018-04-05 16:24:43,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:24:43,872 INFO L225 Difference]: With dead ends: 143 [2018-04-05 16:24:43,873 INFO L226 Difference]: Without dead ends: 130 [2018-04-05 16:24:43,880 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 57 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 16:24:43,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-04-05 16:24:43,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2018-04-05 16:24:43,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-04-05 16:24:43,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 137 transitions. [2018-04-05 16:24:43,931 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 137 transitions. Word has length 34 [2018-04-05 16:24:43,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:24:43,931 INFO L459 AbstractCegarLoop]: Abstraction has 126 states and 137 transitions. [2018-04-05 16:24:43,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:24:43,931 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 137 transitions. [2018-04-05 16:24:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-05 16:24:43,932 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:24:43,933 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] [2018-04-05 16:24:43,933 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:24:43,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1576658117, 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 16:24:43,956 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:24:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:24:44,010 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:24:44,159 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:24:44,160 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 16:24:44,164 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:24:44,165 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 16:24:44,166 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:44,179 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:44,189 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 16:24:44,190 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:24:44,304 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-04-05 16:24:44,329 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-04-05 16:24:44,339 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 16:24:44,339 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:24:44,515 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_13| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_13|))) (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_13| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_13| 0) |c_old(#valid)|))) is different from false [2018-04-05 16:24:44,544 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_12| Int) (|v_main_#t~malloc11.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_12| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc10.base_12|))) (= (store (store (store .cse0 |v_main_#t~malloc11.base_13| 1) |v_main_#t~malloc10.base_12| 0) |v_main_#t~malloc11.base_13| 0) |c_old(#valid)|) (not (= 0 (select .cse0 |v_main_#t~malloc11.base_13|)))))) is different from false [2018-04-05 16:24:44,668 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 16:24:44,771 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:24:44,771 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:24:44,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:24:44,772 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:24:44,772 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:24:44,773 INFO L87 Difference]: Start difference. First operand 126 states and 137 transitions. Second operand 12 states. [2018-04-05 16:24:44,847 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc10.base_12| Int) (|v_main_#t~malloc11.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_12| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc10.base_12|))) (= (store (store (store .cse0 |v_main_#t~malloc11.base_13| 1) |v_main_#t~malloc10.base_12| 0) |v_main_#t~malloc11.base_13| 0) |c_old(#valid)|) (not (= 0 (select .cse0 |v_main_#t~malloc11.base_13|))))))) is different from false [2018-04-05 16:24:47,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:24:47,258 INFO L93 Difference]: Finished difference Result 189 states and 203 transitions. [2018-04-05 16:24:47,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:24:47,259 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2018-04-05 16:24:47,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:24:47,261 INFO L225 Difference]: With dead ends: 189 [2018-04-05 16:24:47,261 INFO L226 Difference]: Without dead ends: 176 [2018-04-05 16:24:47,262 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 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 16:24:47,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-04-05 16:24:47,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 125. [2018-04-05 16:24:47,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-04-05 16:24:47,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 135 transitions. [2018-04-05 16:24:47,318 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 135 transitions. Word has length 35 [2018-04-05 16:24:47,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:24:47,319 INFO L459 AbstractCegarLoop]: Abstraction has 125 states and 135 transitions. [2018-04-05 16:24:47,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:24:47,319 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 135 transitions. [2018-04-05 16:24:47,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-05 16:24:47,320 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:24:47,320 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] [2018-04-05 16:24:47,320 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:24:47,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1903469642, 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 16:24:47,381 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:24:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:24:47,410 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:24:47,766 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:24:47,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2018-04-05 16:24:47,775 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-04-05 16:24:47,775 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:47,806 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:47,837 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 16:24:47,837 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:24:47,976 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-04-05 16:24:47,996 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-04-05 16:24:48,002 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 16:24:48,015 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:24:48,177 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_15| Int)) (or (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc11.base_15| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_15| 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_15|))))) is different from false [2018-04-05 16:24:48,194 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_14| Int) (|v_main_#t~malloc11.base_15| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_14| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc11.base_15| 1) |v_main_#t~malloc10.base_14| 0) |v_main_#t~malloc11.base_15| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc11.base_15|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc10.base_14|)))))) is different from false [2018-04-05 16:24:48,295 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 16:24:48,356 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:24:48,357 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:24:48,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:24:48,357 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:24:48,358 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:24:48,358 INFO L87 Difference]: Start difference. First operand 125 states and 135 transitions. Second operand 12 states. [2018-04-05 16:24:48,498 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc10.base_14| Int) (|v_main_#t~malloc11.base_15| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_14| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc11.base_15| 1) |v_main_#t~malloc10.base_14| 0) |v_main_#t~malloc11.base_15| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc11.base_15|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc10.base_14|))))))) is different from false [2018-04-05 16:24:50,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:24:50,780 INFO L93 Difference]: Finished difference Result 190 states and 204 transitions. [2018-04-05 16:24:50,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:24:50,781 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2018-04-05 16:24:50,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:24:50,784 INFO L225 Difference]: With dead ends: 190 [2018-04-05 16:24:50,784 INFO L226 Difference]: Without dead ends: 177 [2018-04-05 16:24:50,785 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 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 16:24:50,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-04-05 16:24:50,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 127. [2018-04-05 16:24:50,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-04-05 16:24:50,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 138 transitions. [2018-04-05 16:24:50,840 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 138 transitions. Word has length 35 [2018-04-05 16:24:50,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:24:50,845 INFO L459 AbstractCegarLoop]: Abstraction has 127 states and 138 transitions. [2018-04-05 16:24:50,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:24:50,845 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 138 transitions. [2018-04-05 16:24:50,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-05 16:24:50,847 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:24:50,850 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] [2018-04-05 16:24:50,851 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:24:50,851 INFO L82 PathProgramCache]: Analyzing trace with hash 110319719, 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 16:24:50,886 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:24:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:24:50,941 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:24:51,182 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:24:51,183 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 16:24:51,196 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:24:51,197 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 16:24:51,198 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:51,233 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:51,265 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 16:24:51,265 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-05 16:24:51,396 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (select .cse0 |c_main_#t~malloc11.base|) 0) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0))))) is different from true [2018-04-05 16:24:51,421 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc11.base| Int) (|main_#t~malloc10.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc10.base| 1))) (and (= 0 (select |c_old(#valid)| |main_#t~malloc10.base|)) (= (store (store (store .cse0 |main_#t~malloc11.base| 1) |main_#t~malloc10.base| 0) |main_#t~malloc11.base| 0) |c_#valid|) (= (select .cse0 |main_#t~malloc11.base|) 0)))) is different from true [2018-04-05 16:24:51,442 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 16:24:51,442 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:24:51,623 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc11.base_17| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc11.base_17| 1) |c_main_#t~malloc10.base| 0) |v_main_#t~malloc11.base_17| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc11.base_17|))))) is different from false [2018-04-05 16:24:51,653 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc10.base_16| Int) (|v_main_#t~malloc11.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_16| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc10.base_16|))) (not (= (select .cse0 |v_main_#t~malloc11.base_17|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc11.base_17| 1) |v_main_#t~malloc10.base_16| 0) |v_main_#t~malloc11.base_17| 0))))) is different from false [2018-04-05 16:24:51,704 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 16:24:51,739 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:24:51,739 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-05 16:24:51,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-05 16:24:51,740 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-05 16:24:51,740 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-05 16:24:51,741 INFO L87 Difference]: Start difference. First operand 127 states and 138 transitions. Second operand 12 states. [2018-04-05 16:24:51,806 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc10.base_16| Int) (|v_main_#t~malloc11.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc10.base_16| 1))) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc10.base_16|))) (not (= (select .cse0 |v_main_#t~malloc11.base_17|) 0)) (= |c_old(#valid)| (store (store (store .cse0 |v_main_#t~malloc11.base_17| 1) |v_main_#t~malloc10.base_16| 0) |v_main_#t~malloc11.base_17| 0)))))) is different from false [2018-04-05 16:24:54,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:24:54,206 INFO L93 Difference]: Finished difference Result 131 states and 138 transitions. [2018-04-05 16:24:54,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-05 16:24:54,207 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2018-04-05 16:24:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:24:54,208 INFO L225 Difference]: With dead ends: 131 [2018-04-05 16:24:54,209 INFO L226 Difference]: Without dead ends: 118 [2018-04-05 16:24:54,209 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 61 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 16:24:54,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-04-05 16:24:54,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 66. [2018-04-05 16:24:54,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-04-05 16:24:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2018-04-05 16:24:54,227 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 36 [2018-04-05 16:24:54,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:24:54,228 INFO L459 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2018-04-05 16:24:54,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-05 16:24:54,228 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2018-04-05 16:24:54,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-05 16:24:54,237 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:24:54,241 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 16:24:54,241 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:24:54,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1846073370, 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 16:24:54,269 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:24:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:24:54,343 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:24:54,465 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 16:24:54,465 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:24:54,482 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 7 [2018-04-05 16:24:54,483 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:54,507 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:54,507 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:3 [2018-04-05 16:24:54,526 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 16:24:54,577 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:24:54,577 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-04-05 16:24:54,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-05 16:24:54,578 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-05 16:24:54,578 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-05 16:24:54,578 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand 5 states. [2018-04-05 16:24:54,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:24:54,913 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2018-04-05 16:24:54,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-05 16:24:54,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2018-04-05 16:24:54,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:24:54,915 INFO L225 Difference]: With dead ends: 66 [2018-04-05 16:24:54,915 INFO L226 Difference]: Without dead ends: 65 [2018-04-05 16:24:54,915 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-05 16:24:54,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-05 16:24:54,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-05 16:24:54,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-05 16:24:54,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2018-04-05 16:24:54,934 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 45 [2018-04-05 16:24:54,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:24:54,940 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2018-04-05 16:24:54,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-05 16:24:54,940 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2018-04-05 16:24:54,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-05 16:24:54,941 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:24:54,942 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 16:24:54,942 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:24:54,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1846073369, 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 16:24:54,964 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:24:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:24:55,029 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:24:55,039 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 16:24:55,039 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:55,089 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 16:24:55,089 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:55,119 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:55,120 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 16:24:55,222 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:24:55,230 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:24:55,231 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 16:24:55,231 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:55,280 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 16:24:55,281 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:24:55,315 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:24:55,316 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 16:24:56,420 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 16:24:56,420 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:24:58,934 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 16:24:59,003 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-05 16:24:59,039 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15, 14] imperfect sequences [] total 28 [2018-04-05 16:24:59,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-05 16:24:59,040 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-05 16:24:59,041 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2018-04-05 16:24:59,041 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand 29 states. [2018-04-05 16:24:59,470 WARN L148 SmtUtils]: Spent 148ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 16:24:59,858 WARN L148 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:25:01,608 WARN L151 SmtUtils]: Spent 160ms on a formula simplification. DAG size of input: 40 DAG size of output 26 [2018-04-05 16:25:02,230 WARN L151 SmtUtils]: Spent 183ms on a formula simplification. DAG size of input: 31 DAG size of output 28 [2018-04-05 16:25:03,285 WARN L151 SmtUtils]: Spent 199ms on a formula simplification. DAG size of input: 36 DAG size of output 35 [2018-04-05 16:25:03,728 WARN L151 SmtUtils]: Spent 234ms on a formula simplification. DAG size of input: 40 DAG size of output 37 [2018-04-05 16:25:04,109 WARN L151 SmtUtils]: Spent 210ms on a formula simplification. DAG size of input: 37 DAG size of output 34 [2018-04-05 16:25:04,523 WARN L148 SmtUtils]: Spent 253ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 16:25:04,967 WARN L151 SmtUtils]: Spent 276ms on a formula simplification. DAG size of input: 46 DAG size of output 43 [2018-04-05 16:25:05,237 WARN L148 SmtUtils]: Spent 155ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 16:25:05,963 WARN L148 SmtUtils]: Spent 175ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 16:25:07,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:25:07,695 INFO L93 Difference]: Finished difference Result 113 states and 120 transitions. [2018-04-05 16:25:07,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-05 16:25:07,696 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 45 [2018-04-05 16:25:07,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:25:07,697 INFO L225 Difference]: With dead ends: 113 [2018-04-05 16:25:07,697 INFO L226 Difference]: Without dead ends: 112 [2018-04-05 16:25:07,698 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=449, Invalid=2743, Unknown=0, NotChecked=0, Total=3192 [2018-04-05 16:25:07,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-04-05 16:25:07,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 92. [2018-04-05 16:25:07,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-04-05 16:25:07,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2018-04-05 16:25:07,724 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 45 [2018-04-05 16:25:07,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:25:07,724 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2018-04-05 16:25:07,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-05 16:25:07,725 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2018-04-05 16:25:07,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-05 16:25:07,726 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:25:07,727 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-05 16:25:07,727 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:25:07,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1207063490, 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 16:25:07,751 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:25:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:25:07,806 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:25:07,884 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 16:25:07,887 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 16:25:07,888 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:07,903 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:07,946 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 16:25:07,946 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-05 16:25:08,393 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 16:25:08,440 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 16:25:08,441 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:25:08,490 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:25:08,581 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 16:25:08,582 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-05 16:25:08,801 WARN L151 SmtUtils]: Spent 149ms on a formula simplification. DAG size of input: 15 DAG size of output 15 [2018-04-05 16:25:09,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:25:09,061 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:25:10,542 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 16:25:10,543 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:10,610 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 16:25:10,680 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 16:25:10,681 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:10,691 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:10,722 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 16:25:10,722 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-04-05 16:25:10,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:25:10,880 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:25:10,880 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-04-05 16:25:10,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-05 16:25:10,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-05 16:25:10,881 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2018-04-05 16:25:10,881 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand 21 states. [2018-04-05 16:25:12,063 WARN L151 SmtUtils]: Spent 157ms on a formula simplification. DAG size of input: 59 DAG size of output 56 [2018-04-05 16:25:12,690 WARN L151 SmtUtils]: Spent 218ms on a formula simplification. DAG size of input: 58 DAG size of output 55 [2018-04-05 16:25:13,108 WARN L151 SmtUtils]: Spent 316ms on a formula simplification. DAG size of input: 34 DAG size of output 31 [2018-04-05 16:25:13,296 WARN L151 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 25 DAG size of output 24 [2018-04-05 16:25:14,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:25:14,097 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2018-04-05 16:25:14,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-04-05 16:25:14,097 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 47 [2018-04-05 16:25:14,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:25:14,098 INFO L225 Difference]: With dead ends: 99 [2018-04-05 16:25:14,099 INFO L226 Difference]: Without dead ends: 98 [2018-04-05 16:25:14,099 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2018-04-05 16:25:14,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-04-05 16:25:14,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 92. [2018-04-05 16:25:14,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-04-05 16:25:14,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2018-04-05 16:25:14,141 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 47 [2018-04-05 16:25:14,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:25:14,147 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2018-04-05 16:25:14,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-05 16:25:14,147 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2018-04-05 16:25:14,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-05 16:25:14,148 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:25:14,148 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-05 16:25:14,148 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:25:14,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1235737515, 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 16:25:14,186 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:25:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:25:14,235 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:25:14,252 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 16:25:14,252 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:14,309 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 16:25:14,309 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:14,366 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:14,367 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 16:25:14,473 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:25:14,496 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 16:25:14,496 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:14,560 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:25:14,565 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:25:14,568 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 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 16:25:14,568 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:14,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:14,602 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 16:25:15,511 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:25:15,511 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:25:16,608 WARN L151 SmtUtils]: Spent 155ms on a formula simplification. DAG size of input: 21 DAG size of output 19 [2018-04-05 16:25:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:25:17,970 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:25:17,971 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 28 [2018-04-05 16:25:17,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-05 16:25:17,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-05 16:25:17,972 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2018-04-05 16:25:17,972 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand 29 states. [2018-04-05 16:25:18,360 WARN L148 SmtUtils]: Spent 111ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 16:25:20,598 WARN L148 SmtUtils]: Spent 108ms on a formula simplification that was a NOOP. DAG size: 21 [2018-04-05 16:25:21,052 WARN L151 SmtUtils]: Spent 236ms on a formula simplification. DAG size of input: 40 DAG size of output 26 [2018-04-05 16:25:21,342 WARN L148 SmtUtils]: Spent 120ms on a formula simplification that was a NOOP. DAG size: 27 [2018-04-05 16:25:21,782 WARN L151 SmtUtils]: Spent 183ms on a formula simplification. DAG size of input: 33 DAG size of output 28 [2018-04-05 16:25:22,659 WARN L151 SmtUtils]: Spent 258ms on a formula simplification. DAG size of input: 36 DAG size of output 35 [2018-04-05 16:25:23,460 WARN L151 SmtUtils]: Spent 570ms on a formula simplification. DAG size of input: 40 DAG size of output 37 [2018-04-05 16:25:23,881 WARN L148 SmtUtils]: Spent 131ms on a formula simplification that was a NOOP. DAG size: 31 [2018-04-05 16:25:24,604 WARN L151 SmtUtils]: Spent 566ms on a formula simplification. DAG size of input: 37 DAG size of output 34 [2018-04-05 16:25:25,100 WARN L151 SmtUtils]: Spent 314ms on a formula simplification. DAG size of input: 52 DAG size of output 46 [2018-04-05 16:25:25,757 WARN L151 SmtUtils]: Spent 276ms on a formula simplification. DAG size of input: 45 DAG size of output 42 [2018-04-05 16:25:26,478 WARN L148 SmtUtils]: Spent 102ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 16:25:27,417 WARN L148 SmtUtils]: Spent 108ms on a formula simplification that was a NOOP. DAG size: 21 [2018-04-05 16:25:28,471 WARN L148 SmtUtils]: Spent 559ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 16:25:29,008 WARN L148 SmtUtils]: Spent 173ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 16:25:29,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:25:29,009 INFO L93 Difference]: Finished difference Result 120 states and 126 transitions. [2018-04-05 16:25:29,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-05 16:25:29,009 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 48 [2018-04-05 16:25:29,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:25:29,010 INFO L225 Difference]: With dead ends: 120 [2018-04-05 16:25:29,011 INFO L226 Difference]: Without dead ends: 119 [2018-04-05 16:25:29,018 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=431, Invalid=2539, Unknown=0, NotChecked=0, Total=2970 [2018-04-05 16:25:29,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-04-05 16:25:29,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 106. [2018-04-05 16:25:29,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-04-05 16:25:29,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 112 transitions. [2018-04-05 16:25:29,061 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 112 transitions. Word has length 48 [2018-04-05 16:25:29,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:25:29,061 INFO L459 AbstractCegarLoop]: Abstraction has 106 states and 112 transitions. [2018-04-05 16:25:29,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-05 16:25:29,070 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2018-04-05 16:25:29,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-05 16:25:29,071 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:25:29,071 INFO L355 BasicCegarLoop]: trace histogram [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] [2018-04-05 16:25:29,071 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:25:29,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1151669462, 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 16:25:29,125 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:25:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:25:29,255 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:25:29,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-05 16:25:29,273 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:29,306 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 16:25:29,307 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:29,341 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:29,342 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 16:25:29,435 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:25:29,447 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 16:25:29,447 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:29,510 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:25:29,514 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:25:29,515 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 16:25:29,515 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:29,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:29,551 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 16:25:31,509 WARN L148 SmtUtils]: Spent 160ms on a formula simplification that was a NOOP. DAG size: 15 [2018-04-05 16:25:31,715 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:25:31,715 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:25:36,222 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:25:36,280 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:25:36,280 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2018-04-05 16:25:36,280 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-05 16:25:36,281 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-05 16:25:36,281 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1220, Unknown=0, NotChecked=0, Total=1332 [2018-04-05 16:25:36,281 INFO L87 Difference]: Start difference. First operand 106 states and 112 transitions. Second operand 37 states. [2018-04-05 16:25:36,777 WARN L148 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-05 16:25:38,675 WARN L148 SmtUtils]: Spent 121ms on a formula simplification that was a NOOP. DAG size: 28 [2018-04-05 16:25:39,098 WARN L151 SmtUtils]: Spent 194ms on a formula simplification. DAG size of input: 38 DAG size of output 36 [2018-04-05 16:25:39,383 WARN L151 SmtUtils]: Spent 162ms on a formula simplification. DAG size of input: 32 DAG size of output 30 [2018-04-05 16:25:40,005 WARN L148 SmtUtils]: Spent 121ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 16:25:40,344 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 31 DAG size of output 29 [2018-04-05 16:25:40,595 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 25 DAG size of output 24 [2018-04-05 16:25:41,242 WARN L151 SmtUtils]: Spent 177ms on a formula simplification. DAG size of input: 33 DAG size of output 29 [2018-04-05 16:25:41,637 WARN L148 SmtUtils]: Spent 139ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:25:41,996 WARN L151 SmtUtils]: Spent 182ms on a formula simplification. DAG size of input: 34 DAG size of output 29 [2018-04-05 16:25:42,580 WARN L148 SmtUtils]: Spent 122ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:25:43,392 WARN L151 SmtUtils]: Spent 315ms on a formula simplification. DAG size of input: 47 DAG size of output 44 [2018-04-05 16:25:44,225 WARN L151 SmtUtils]: Spent 321ms on a formula simplification. DAG size of input: 51 DAG size of output 45 [2018-04-05 16:25:44,686 WARN L151 SmtUtils]: Spent 265ms on a formula simplification. DAG size of input: 48 DAG size of output 42 [2018-04-05 16:25:45,385 WARN L151 SmtUtils]: Spent 444ms on a formula simplification. DAG size of input: 64 DAG size of output 54 [2018-04-05 16:25:45,954 WARN L151 SmtUtils]: Spent 322ms on a formula simplification. DAG size of input: 47 DAG size of output 43 [2018-04-05 16:25:46,558 WARN L148 SmtUtils]: Spent 125ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-05 16:25:47,095 WARN L148 SmtUtils]: Spent 126ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:25:47,750 WARN L148 SmtUtils]: Spent 222ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:25:48,689 WARN L151 SmtUtils]: Spent 550ms on a formula simplification. DAG size of input: 42 DAG size of output 39 [2018-04-05 16:25:49,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:25:49,738 INFO L93 Difference]: Finished difference Result 137 states and 144 transitions. [2018-04-05 16:25:49,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-05 16:25:49,738 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 54 [2018-04-05 16:25:49,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:25:49,739 INFO L225 Difference]: With dead ends: 137 [2018-04-05 16:25:49,739 INFO L226 Difference]: Without dead ends: 136 [2018-04-05 16:25:49,749 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=653, Invalid=4749, Unknown=0, NotChecked=0, Total=5402 [2018-04-05 16:25:49,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-04-05 16:25:49,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 127. [2018-04-05 16:25:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-04-05 16:25:49,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 133 transitions. [2018-04-05 16:25:49,789 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 133 transitions. Word has length 54 [2018-04-05 16:25:49,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:25:49,795 INFO L459 AbstractCegarLoop]: Abstraction has 127 states and 133 transitions. [2018-04-05 16:25:49,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-05 16:25:49,795 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 133 transitions. [2018-04-05 16:25:49,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-05 16:25:49,796 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:25:49,796 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 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] [2018-04-05 16:25:49,796 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:25:49,796 INFO L82 PathProgramCache]: Analyzing trace with hash 239423260, now seen corresponding path program 2 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 16:25:49,839 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:25:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:25:49,895 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:25:49,908 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 16:25:49,913 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:49,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:49,920 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:25:49,998 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:25:50,005 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:25:50,006 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 16:25:50,006 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:50,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 6 treesize of output 5 [2018-04-05 16:25:50,051 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:50,091 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:50,091 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-05 16:25:50,246 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 16:25:50,252 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 16:25:50,253 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:50,259 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:50,280 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:50,281 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-05 16:25:51,265 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 23 treesize of output 24 [2018-04-05 16:25:51,303 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 8 treesize of output 7 [2018-04-05 16:25:51,304 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:51,342 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:51,391 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:51,391 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-05 16:25:51,817 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-05 16:25:51,869 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 16:25:51,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:25:51,892 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:25:51,967 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:25:51,968 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-05 16:25:52,772 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:25:52,773 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:25:53,565 WARN L148 SmtUtils]: Spent 178ms on a formula simplification that was a NOOP. DAG size: 20 [2018-04-05 16:25:54,814 WARN L148 SmtUtils]: Spent 111ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 16:25:56,391 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 28 [2018-04-05 16:25:56,482 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 16:25:56,483 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:56,568 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 16:25:56,577 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2018-04-05 16:25:56,577 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:56,584 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:56,591 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 18 [2018-04-05 16:25:56,598 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 9 treesize of output 1 [2018-04-05 16:25:56,599 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 16:25:56,616 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:25:56,701 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:25:56,854 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:25:56,855 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:55, output treesize:84 [2018-04-05 16:25:57,300 WARN L151 SmtUtils]: Spent 241ms on a formula simplification. DAG size of input: 24 DAG size of output 20 [2018-04-05 16:25:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:25:58,024 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:25:58,025 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2018-04-05 16:25:58,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-05 16:25:58,025 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-05 16:25:58,026 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1603, Unknown=0, NotChecked=0, Total=1722 [2018-04-05 16:25:58,026 INFO L87 Difference]: Start difference. First operand 127 states and 133 transitions. Second operand 42 states. [2018-04-05 16:26:00,815 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 16:26:01,553 WARN L151 SmtUtils]: Spent 241ms on a formula simplification. DAG size of input: 74 DAG size of output 62 [2018-04-05 16:26:02,299 WARN L151 SmtUtils]: Spent 221ms on a formula simplification. DAG size of input: 59 DAG size of output 49 [2018-04-05 16:26:02,653 WARN L151 SmtUtils]: Spent 151ms on a formula simplification. DAG size of input: 39 DAG size of output 29 [2018-04-05 16:26:03,152 WARN L151 SmtUtils]: Spent 355ms on a formula simplification. DAG size of input: 46 DAG size of output 34 [2018-04-05 16:26:03,598 WARN L151 SmtUtils]: Spent 174ms on a formula simplification. DAG size of input: 30 DAG size of output 27 [2018-04-05 16:26:03,981 WARN L151 SmtUtils]: Spent 195ms on a formula simplification. DAG size of input: 37 DAG size of output 32 [2018-04-05 16:26:04,273 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 21 DAG size of output 19 [2018-04-05 16:26:04,842 WARN L151 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 31 DAG size of output 29 [2018-04-05 16:26:05,400 WARN L151 SmtUtils]: Spent 153ms on a formula simplification. DAG size of input: 32 DAG size of output 26 [2018-04-05 16:26:05,967 WARN L151 SmtUtils]: Spent 332ms on a formula simplification. DAG size of input: 38 DAG size of output 33 [2018-04-05 16:26:06,291 WARN L151 SmtUtils]: Spent 134ms on a formula simplification. DAG size of input: 28 DAG size of output 25 [2018-04-05 16:26:08,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:26:08,112 INFO L93 Difference]: Finished difference Result 160 states and 166 transitions. [2018-04-05 16:26:08,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-04-05 16:26:08,112 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 62 [2018-04-05 16:26:08,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:26:08,114 INFO L225 Difference]: With dead ends: 160 [2018-04-05 16:26:08,114 INFO L226 Difference]: Without dead ends: 159 [2018-04-05 16:26:08,118 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=416, Invalid=4006, Unknown=0, NotChecked=0, Total=4422 [2018-04-05 16:26:08,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-04-05 16:26:08,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 127. [2018-04-05 16:26:08,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-04-05 16:26:08,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 132 transitions. [2018-04-05 16:26:08,158 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 132 transitions. Word has length 62 [2018-04-05 16:26:08,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:26:08,158 INFO L459 AbstractCegarLoop]: Abstraction has 127 states and 132 transitions. [2018-04-05 16:26:08,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-05 16:26:08,159 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 132 transitions. [2018-04-05 16:26:08,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-05 16:26:08,160 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:26:08,160 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:26:08,160 INFO L408 AbstractCegarLoop]: === Iteration 17 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:26:08,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1594717174, now seen corresponding path program 2 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 16:26:08,182 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:26:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:26:08,242 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:26:08,249 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 16:26:08,250 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:26:08,278 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 16:26:08,279 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:26:08,308 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:26:08,309 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 16:26:08,406 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:26:08,413 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 16:26:08,413 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:26:08,477 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:26:08,485 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:26:08,486 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 16:26:08,486 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:26:08,521 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:26:08,522 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 16:26:09,349 WARN L148 SmtUtils]: Spent 125ms on a formula simplification that was a NOOP. DAG size: 13 [2018-04-05 16:26:11,554 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:26:11,554 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:26:16,849 WARN L148 SmtUtils]: Spent 267ms on a formula simplification that was a NOOP. DAG size: 19 [2018-04-05 16:26:19,223 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:26:19,304 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:26:19,304 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 48 [2018-04-05 16:26:19,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-04-05 16:26:19,305 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-04-05 16:26:19,305 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=2178, Unknown=0, NotChecked=0, Total=2352 [2018-04-05 16:26:19,306 INFO L87 Difference]: Start difference. First operand 127 states and 132 transitions. Second operand 49 states. [2018-04-05 16:26:21,527 WARN L148 SmtUtils]: Spent 274ms on a formula simplification that was a NOOP. DAG size: 16 [2018-04-05 16:26:23,377 WARN L151 SmtUtils]: Spent 200ms on a formula simplification. DAG size of input: 38 DAG size of output 36 [2018-04-05 16:26:23,700 WARN L151 SmtUtils]: Spent 161ms on a formula simplification. DAG size of input: 32 DAG size of output 30 [2018-04-05 16:26:24,455 WARN L148 SmtUtils]: Spent 129ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 16:26:24,877 WARN L151 SmtUtils]: Spent 180ms on a formula simplification. DAG size of input: 31 DAG size of output 29 [2018-04-05 16:26:25,233 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 25 DAG size of output 24 [2018-04-05 16:26:25,903 WARN L151 SmtUtils]: Spent 145ms on a formula simplification. DAG size of input: 33 DAG size of output 29 [2018-04-05 16:26:26,340 WARN L148 SmtUtils]: Spent 139ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:26:26,946 WARN L151 SmtUtils]: Spent 298ms on a formula simplification. DAG size of input: 41 DAG size of output 30 [2018-04-05 16:26:27,676 WARN L151 SmtUtils]: Spent 172ms on a formula simplification. DAG size of input: 33 DAG size of output 31 [2018-04-05 16:26:27,983 WARN L148 SmtUtils]: Spent 105ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:26:28,325 WARN L148 SmtUtils]: Spent 123ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 16:26:28,751 WARN L151 SmtUtils]: Spent 159ms on a formula simplification. DAG size of input: 32 DAG size of output 30 [2018-04-05 16:26:29,350 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 26 DAG size of output 25 [2018-04-05 16:26:29,763 WARN L151 SmtUtils]: Spent 159ms on a formula simplification. DAG size of input: 34 DAG size of output 30 [2018-04-05 16:26:30,169 WARN L151 SmtUtils]: Spent 154ms on a formula simplification. DAG size of input: 42 DAG size of output 31 [2018-04-05 16:26:30,913 WARN L151 SmtUtils]: Spent 148ms on a formula simplification. DAG size of input: 34 DAG size of output 32 [2018-04-05 16:26:31,326 WARN L148 SmtUtils]: Spent 106ms on a formula simplification that was a NOOP. DAG size: 38 [2018-04-05 16:26:31,732 WARN L148 SmtUtils]: Spent 113ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:26:32,121 WARN L151 SmtUtils]: Spent 152ms on a formula simplification. DAG size of input: 32 DAG size of output 30 [2018-04-05 16:26:32,448 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 43 [2018-04-05 16:26:32,794 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 26 DAG size of output 25 [2018-04-05 16:26:33,268 WARN L151 SmtUtils]: Spent 273ms on a formula simplification. DAG size of input: 47 DAG size of output 45 [2018-04-05 16:26:33,914 WARN L151 SmtUtils]: Spent 157ms on a formula simplification. DAG size of input: 34 DAG size of output 30 [2018-04-05 16:26:34,343 WARN L151 SmtUtils]: Spent 169ms on a formula simplification. DAG size of input: 35 DAG size of output 31 [2018-04-05 16:26:34,911 WARN L148 SmtUtils]: Spent 134ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-05 16:26:35,937 WARN L148 SmtUtils]: Spent 128ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:26:36,631 WARN L151 SmtUtils]: Spent 391ms on a formula simplification. DAG size of input: 69 DAG size of output 62 [2018-04-05 16:26:36,997 WARN L148 SmtUtils]: Spent 120ms on a formula simplification that was a NOOP. DAG size: 43 [2018-04-05 16:26:39,965 WARN L151 SmtUtils]: Spent 438ms on a formula simplification. DAG size of input: 73 DAG size of output 63 [2018-04-05 16:26:40,459 WARN L151 SmtUtils]: Spent 303ms on a formula simplification. DAG size of input: 46 DAG size of output 44 [2018-04-05 16:26:41,151 WARN L151 SmtUtils]: Spent 390ms on a formula simplification. DAG size of input: 70 DAG size of output 60 [2018-04-05 16:26:42,869 WARN L151 SmtUtils]: Spent 897ms on a formula simplification. DAG size of input: 98 DAG size of output 80 [2018-04-05 16:26:44,018 WARN L151 SmtUtils]: Spent 721ms on a formula simplification. DAG size of input: 81 DAG size of output 71 [2018-04-05 16:26:45,022 WARN L151 SmtUtils]: Spent 332ms on a formula simplification. DAG size of input: 51 DAG size of output 49 [2018-04-05 16:26:45,892 WARN L151 SmtUtils]: Spent 311ms on a formula simplification. DAG size of input: 55 DAG size of output 53 [2018-04-05 16:26:46,228 WARN L148 SmtUtils]: Spent 117ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:26:46,609 WARN L148 SmtUtils]: Spent 148ms on a formula simplification that was a NOOP. DAG size: 50 [2018-04-05 16:26:47,027 WARN L148 SmtUtils]: Spent 124ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:26:47,412 WARN L151 SmtUtils]: Spent 209ms on a formula simplification. DAG size of input: 45 DAG size of output 40 [2018-04-05 16:26:48,154 WARN L151 SmtUtils]: Spent 211ms on a formula simplification. DAG size of input: 42 DAG size of output 39 [2018-04-05 16:26:49,175 WARN L151 SmtUtils]: Spent 423ms on a formula simplification. DAG size of input: 63 DAG size of output 53 [2018-04-05 16:26:49,881 WARN L151 SmtUtils]: Spent 436ms on a formula simplification. DAG size of input: 59 DAG size of output 54 [2018-04-05 16:26:50,198 WARN L148 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 16:26:50,818 WARN L148 SmtUtils]: Spent 123ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:26:51,451 WARN L148 SmtUtils]: Spent 132ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 16:26:51,775 WARN L148 SmtUtils]: Spent 113ms on a formula simplification that was a NOOP. DAG size: 27 [2018-04-05 16:26:52,109 WARN L148 SmtUtils]: Spent 123ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 16:26:52,651 WARN L151 SmtUtils]: Spent 230ms on a formula simplification. DAG size of input: 34 DAG size of output 31 [2018-04-05 16:26:53,199 WARN L151 SmtUtils]: Spent 252ms on a formula simplification. DAG size of input: 46 DAG size of output 40 [2018-04-05 16:26:53,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:26:53,225 INFO L93 Difference]: Finished difference Result 191 states and 199 transitions. [2018-04-05 16:26:53,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-04-05 16:26:53,226 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 72 [2018-04-05 16:26:53,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:26:53,227 INFO L225 Difference]: With dead ends: 191 [2018-04-05 16:26:53,228 INFO L226 Difference]: Without dead ends: 190 [2018-04-05 16:26:53,236 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2749 ImplicationChecksByTransitivity, 38.2s TimeCoverageRelationStatistics Valid=1504, Invalid=12537, Unknown=1, NotChecked=0, Total=14042 [2018-04-05 16:26:53,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-04-05 16:26:53,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 189. [2018-04-05 16:26:53,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-04-05 16:26:53,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 195 transitions. [2018-04-05 16:26:53,295 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 195 transitions. Word has length 72 [2018-04-05 16:26:53,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:26:53,296 INFO L459 AbstractCegarLoop]: Abstraction has 189 states and 195 transitions. [2018-04-05 16:26:53,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-04-05 16:26:53,296 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 195 transitions. [2018-04-05 16:26:53,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-05 16:26:53,298 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:26:53,299 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2018-04-05 16:26:53,299 INFO L408 AbstractCegarLoop]: === Iteration 18 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:26:53,299 INFO L82 PathProgramCache]: Analyzing trace with hash 2000353447, 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 16:26:53,330 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:26:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:26:53,430 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:26:53,444 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 16:26:53,445 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:26:53,486 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 16:26:53,487 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:26:53,518 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:26:53,519 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 16:26:53,609 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:26:53,616 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 16:26:53,617 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:26:53,677 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:26:53,682 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:26:53,683 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 16:26:53,683 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:26:53,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:26:53,719 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 16:26:55,757 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:26:55,757 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:00,000 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:00,046 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:27:00,046 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 42 [2018-04-05 16:27:00,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-05 16:27:00,047 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-05 16:27:00,047 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1661, Unknown=0, NotChecked=0, Total=1806 [2018-04-05 16:27:00,047 INFO L87 Difference]: Start difference. First operand 189 states and 195 transitions. Second operand 43 states. [2018-04-05 16:27:02,237 WARN L151 SmtUtils]: Spent 152ms on a formula simplification. DAG size of input: 39 DAG size of output 26 [2018-04-05 16:27:02,557 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 39 DAG size of output 28 [2018-04-05 16:27:02,918 WARN L151 SmtUtils]: Spent 170ms on a formula simplification. DAG size of input: 38 DAG size of output 36 [2018-04-05 16:27:03,195 WARN L151 SmtUtils]: Spent 151ms on a formula simplification. DAG size of input: 32 DAG size of output 30 [2018-04-05 16:27:03,773 WARN L148 SmtUtils]: Spent 109ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 16:27:04,608 WARN L151 SmtUtils]: Spent 450ms on a formula simplification. DAG size of input: 31 DAG size of output 29 [2018-04-05 16:27:04,923 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 25 DAG size of output 24 [2018-04-05 16:27:05,245 WARN L151 SmtUtils]: Spent 127ms on a formula simplification. DAG size of input: 39 DAG size of output 27 [2018-04-05 16:27:05,600 WARN L151 SmtUtils]: Spent 158ms on a formula simplification. DAG size of input: 31 DAG size of output 30 [2018-04-05 16:27:05,934 WARN L151 SmtUtils]: Spent 134ms on a formula simplification. DAG size of input: 40 DAG size of output 28 [2018-04-05 16:27:06,741 WARN L151 SmtUtils]: Spent 197ms on a formula simplification. DAG size of input: 38 DAG size of output 36 [2018-04-05 16:27:07,130 WARN L151 SmtUtils]: Spent 148ms on a formula simplification. DAG size of input: 33 DAG size of output 31 [2018-04-05 16:27:08,080 WARN L148 SmtUtils]: Spent 115ms on a formula simplification that was a NOOP. DAG size: 37 [2018-04-05 16:27:08,462 WARN L151 SmtUtils]: Spent 163ms on a formula simplification. DAG size of input: 32 DAG size of output 30 [2018-04-05 16:27:08,836 WARN L151 SmtUtils]: Spent 133ms on a formula simplification. DAG size of input: 26 DAG size of output 25 [2018-04-05 16:27:09,162 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 40 DAG size of output 27 [2018-04-05 16:27:09,503 WARN L151 SmtUtils]: Spent 158ms on a formula simplification. DAG size of input: 32 DAG size of output 31 [2018-04-05 16:27:10,340 WARN L151 SmtUtils]: Spent 206ms on a formula simplification. DAG size of input: 33 DAG size of output 29 [2018-04-05 16:27:11,117 WARN L148 SmtUtils]: Spent 150ms on a formula simplification that was a NOOP. DAG size: 53 [2018-04-05 16:27:11,434 WARN L148 SmtUtils]: Spent 129ms on a formula simplification that was a NOOP. DAG size: 27 [2018-04-05 16:27:11,976 WARN L151 SmtUtils]: Spent 307ms on a formula simplification. DAG size of input: 58 DAG size of output 53 [2018-04-05 16:27:12,778 WARN L151 SmtUtils]: Spent 504ms on a formula simplification. DAG size of input: 62 DAG size of output 54 [2018-04-05 16:27:13,405 WARN L151 SmtUtils]: Spent 320ms on a formula simplification. DAG size of input: 59 DAG size of output 51 [2018-04-05 16:27:13,852 WARN L148 SmtUtils]: Spent 284ms on a formula simplification that was a NOOP. DAG size: 74 [2018-04-05 16:27:14,677 WARN L151 SmtUtils]: Spent 475ms on a formula simplification. DAG size of input: 68 DAG size of output 60 [2018-04-05 16:27:15,277 WARN L148 SmtUtils]: Spent 375ms on a formula simplification that was a NOOP. DAG size: 73 [2018-04-05 16:27:16,739 WARN L151 SmtUtils]: Spent 619ms on a formula simplification. DAG size of input: 73 DAG size of output 71 [2018-04-05 16:27:17,413 WARN L151 SmtUtils]: Spent 297ms on a formula simplification. DAG size of input: 51 DAG size of output 49 [2018-04-05 16:27:17,855 WARN L148 SmtUtils]: Spent 137ms on a formula simplification that was a NOOP. DAG size: 43 [2018-04-05 16:27:18,432 WARN L151 SmtUtils]: Spent 375ms on a formula simplification. DAG size of input: 55 DAG size of output 53 [2018-04-05 16:27:18,868 WARN L148 SmtUtils]: Spent 233ms on a formula simplification that was a NOOP. DAG size: 50 [2018-04-05 16:27:19,427 WARN L151 SmtUtils]: Spent 287ms on a formula simplification. DAG size of input: 45 DAG size of output 40 [2018-04-05 16:27:19,926 WARN L148 SmtUtils]: Spent 264ms on a formula simplification that was a NOOP. DAG size: 59 [2018-04-05 16:27:20,392 WARN L151 SmtUtils]: Spent 278ms on a formula simplification. DAG size of input: 51 DAG size of output 46 [2018-04-05 16:27:20,860 WARN L148 SmtUtils]: Spent 223ms on a formula simplification that was a NOOP. DAG size: 57 [2018-04-05 16:27:21,369 WARN L148 SmtUtils]: Spent 231ms on a formula simplification that was a NOOP. DAG size: 57 [2018-04-05 16:27:21,979 WARN L148 SmtUtils]: Spent 369ms on a formula simplification that was a NOOP. DAG size: 67 [2018-04-05 16:27:22,309 WARN L148 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:27:22,607 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 32 [2018-04-05 16:27:22,979 WARN L148 SmtUtils]: Spent 152ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 16:27:23,296 WARN L148 SmtUtils]: Spent 127ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 16:27:23,582 WARN L151 SmtUtils]: Spent 133ms on a formula simplification. DAG size of input: 34 DAG size of output 31 [2018-04-05 16:27:23,848 WARN L148 SmtUtils]: Spent 118ms on a formula simplification that was a NOOP. DAG size: 42 [2018-04-05 16:27:24,164 WARN L151 SmtUtils]: Spent 171ms on a formula simplification. DAG size of input: 40 DAG size of output 37 [2018-04-05 16:27:24,466 WARN L148 SmtUtils]: Spent 123ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:27:24,747 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:27:25,076 WARN L148 SmtUtils]: Spent 153ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 16:27:26,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:27:26,630 INFO L93 Difference]: Finished difference Result 290 states and 301 transitions. [2018-04-05 16:27:26,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-04-05 16:27:26,630 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 75 [2018-04-05 16:27:26,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:27:26,632 INFO L225 Difference]: With dead ends: 290 [2018-04-05 16:27:26,632 INFO L226 Difference]: Without dead ends: 289 [2018-04-05 16:27:26,637 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2339 ImplicationChecksByTransitivity, 28.0s TimeCoverageRelationStatistics Valid=1316, Invalid=10026, Unknown=0, NotChecked=0, Total=11342 [2018-04-05 16:27:26,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2018-04-05 16:27:26,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 238. [2018-04-05 16:27:26,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-04-05 16:27:26,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 254 transitions. [2018-04-05 16:27:26,691 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 254 transitions. Word has length 75 [2018-04-05 16:27:26,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:27:26,691 INFO L459 AbstractCegarLoop]: Abstraction has 238 states and 254 transitions. [2018-04-05 16:27:26,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-05 16:27:26,691 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 254 transitions. [2018-04-05 16:27:26,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-05 16:27:26,692 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:27:26,693 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:27:26,693 INFO L408 AbstractCegarLoop]: === Iteration 19 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:27:26,693 INFO L82 PathProgramCache]: Analyzing trace with hash -343608190, now seen corresponding path program 3 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 16:27:26,723 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:27:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:27:26,772 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:27:26,778 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 16:27:26,779 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:26,798 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:26,798 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-05 16:27:26,853 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 16:27:26,854 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:26,900 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:27:26,908 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:27:26,909 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 16:27:26,909 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:26,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:26,950 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-05 16:27:27,089 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 16:27:27,096 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-05 16:27:27,097 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:27,103 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:27,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:27,125 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-05 16:27:28,144 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 23 treesize of output 24 [2018-04-05 16:27:28,148 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 8 treesize of output 7 [2018-04-05 16:27:28,149 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:28,175 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:28,203 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:28,204 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2018-04-05 16:27:28,764 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 23 treesize of output 24 [2018-04-05 16:27:28,771 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 8 treesize of output 7 [2018-04-05 16:27:28,772 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:28,819 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:28,867 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:28,867 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-05 16:27:29,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-04-05 16:27:29,406 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 16:27:29,407 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-05 16:27:29,433 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:27:29,487 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-05 16:27:29,488 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-05 16:27:30,067 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:30,067 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:27:32,357 WARN L148 SmtUtils]: Spent 135ms on a formula simplification that was a NOOP. DAG size: 36 [2018-04-05 16:27:33,614 WARN L148 SmtUtils]: Spent 203ms on a formula simplification that was a NOOP. DAG size: 49 [2018-04-05 16:27:34,446 WARN L151 SmtUtils]: Spent 170ms on a formula simplification. DAG size of input: 53 DAG size of output 32 [2018-04-05 16:27:36,640 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 33 [2018-04-05 16:27:36,753 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 16:27:36,754 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:36,855 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 38 [2018-04-05 16:27:36,973 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 60 [2018-04-05 16:27:37,409 WARN L151 SmtUtils]: Spent 433ms on a formula simplification. DAG size of input: 66 DAG size of output 54 [2018-04-05 16:27:37,422 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2018-04-05 16:27:37,422 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:37,438 INFO L682 Elim1Store]: detected equality via solver [2018-04-05 16:27:37,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 29 [2018-04-05 16:27:37,444 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:37,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2018-04-05 16:27:37,448 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:37,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 36 [2018-04-05 16:27:37,878 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 3 xjuncts. [2018-04-05 16:27:37,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2018-04-05 16:27:37,984 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 3 xjuncts. [2018-04-05 16:27:38,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2018-04-05 16:27:38,457 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-04-05 16:27:38,509 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2018-04-05 16:27:38,510 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-04-05 16:27:38,766 INFO L267 ElimStorePlain]: Start of recursive call 5: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:27:39,216 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:27:39,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 24 treesize of output 20 [2018-04-05 16:27:39,232 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2018-04-05 16:27:39,233 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:39,297 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:27:39,373 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-04-05 16:27:39,520 INFO L303 Elim1Store]: Index analysis took 145 ms [2018-04-05 16:27:39,619 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 34 [2018-04-05 16:27:39,788 WARN L148 SmtUtils]: Spent 167ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:27:39,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 36 [2018-04-05 16:27:39,867 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 3 xjuncts. [2018-04-05 16:27:39,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2018-04-05 16:27:39,960 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 3 xjuncts. [2018-04-05 16:27:39,995 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 25 treesize of output 21 [2018-04-05 16:27:39,996 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-04-05 16:27:40,282 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 16 treesize of output 10 [2018-04-05 16:27:40,283 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-04-05 16:27:40,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 30 [2018-04-05 16:27:40,327 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-04-05 16:27:40,507 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:27:40,681 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:27:40,911 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-04-05 16:27:41,104 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-05 16:27:41,104 INFO L202 ElimStorePlain]: Needed 21 recursive calls to eliminate 6 variables, input treesize:60, output treesize:84 [2018-04-05 16:27:41,528 WARN L151 SmtUtils]: Spent 208ms on a formula simplification. DAG size of input: 24 DAG size of output 20 [2018-04-05 16:27:42,352 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:27:42,405 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:27:42,405 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 51 [2018-04-05 16:27:42,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-05 16:27:42,406 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-05 16:27:42,407 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=2474, Unknown=0, NotChecked=0, Total=2652 [2018-04-05 16:27:42,407 INFO L87 Difference]: Start difference. First operand 238 states and 254 transitions. Second operand 52 states. [2018-04-05 16:27:46,717 WARN L151 SmtUtils]: Spent 497ms on a formula simplification. DAG size of input: 87 DAG size of output 70 [2018-04-05 16:27:47,082 WARN L148 SmtUtils]: Spent 108ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 16:27:47,624 WARN L151 SmtUtils]: Spent 253ms on a formula simplification. DAG size of input: 87 DAG size of output 53 [2018-04-05 16:27:48,130 WARN L151 SmtUtils]: Spent 248ms on a formula simplification. DAG size of input: 76 DAG size of output 42 [2018-04-05 16:27:48,628 WARN L151 SmtUtils]: Spent 319ms on a formula simplification. DAG size of input: 82 DAG size of output 47 [2018-04-05 16:27:49,018 WARN L151 SmtUtils]: Spent 175ms on a formula simplification. DAG size of input: 44 DAG size of output 41 [2018-04-05 16:27:49,517 WARN L151 SmtUtils]: Spent 287ms on a formula simplification. DAG size of input: 51 DAG size of output 46 [2018-04-05 16:27:50,126 WARN L151 SmtUtils]: Spent 198ms on a formula simplification. DAG size of input: 35 DAG size of output 33 [2018-04-05 16:27:51,328 WARN L151 SmtUtils]: Spent 261ms on a formula simplification. DAG size of input: 49 DAG size of output 47 [2018-04-05 16:27:51,927 WARN L151 SmtUtils]: Spent 268ms on a formula simplification. DAG size of input: 52 DAG size of output 48 [2018-04-05 16:27:52,434 WARN L151 SmtUtils]: Spent 349ms on a formula simplification. DAG size of input: 57 DAG size of output 53 [2018-04-05 16:27:53,146 WARN L151 SmtUtils]: Spent 286ms on a formula simplification. DAG size of input: 49 DAG size of output 45 [2018-04-05 16:27:53,586 WARN L151 SmtUtils]: Spent 206ms on a formula simplification. DAG size of input: 48 DAG size of output 43 [2018-04-05 16:27:54,075 WARN L151 SmtUtils]: Spent 335ms on a formula simplification. DAG size of input: 53 DAG size of output 47 [2018-04-05 16:27:54,371 WARN L151 SmtUtils]: Spent 127ms on a formula simplification. DAG size of input: 33 DAG size of output 31 [2018-04-05 16:27:54,757 WARN L151 SmtUtils]: Spent 192ms on a formula simplification. DAG size of input: 37 DAG size of output 34 [2018-04-05 16:27:55,371 WARN L151 SmtUtils]: Spent 138ms on a formula simplification. DAG size of input: 35 DAG size of output 33 [2018-04-05 16:27:56,163 WARN L151 SmtUtils]: Spent 194ms on a formula simplification. DAG size of input: 49 DAG size of output 45 [2018-04-05 16:27:56,710 WARN L151 SmtUtils]: Spent 212ms on a formula simplification. DAG size of input: 48 DAG size of output 37 [2018-04-05 16:27:57,202 WARN L151 SmtUtils]: Spent 319ms on a formula simplification. DAG size of input: 58 DAG size of output 43 [2018-04-05 16:27:57,631 WARN L151 SmtUtils]: Spent 223ms on a formula simplification. DAG size of input: 53 DAG size of output 40 [2018-04-05 16:27:58,027 WARN L151 SmtUtils]: Spent 175ms on a formula simplification. DAG size of input: 47 DAG size of output 38 [2018-04-05 16:27:58,449 WARN L151 SmtUtils]: Spent 253ms on a formula simplification. DAG size of input: 52 DAG size of output 41 [2018-04-05 16:27:58,745 WARN L151 SmtUtils]: Spent 143ms on a formula simplification. DAG size of input: 35 DAG size of output 31 [2018-04-05 16:27:59,163 WARN L151 SmtUtils]: Spent 234ms on a formula simplification. DAG size of input: 40 DAG size of output 36 [2018-04-05 16:27:59,518 WARN L151 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 37 DAG size of output 33 [2018-04-05 16:27:59,951 WARN L151 SmtUtils]: Spent 229ms on a formula simplification. DAG size of input: 52 DAG size of output 46 [2018-04-05 16:28:00,258 WARN L151 SmtUtils]: Spent 175ms on a formula simplification. DAG size of input: 51 DAG size of output 39 [2018-04-05 16:28:00,657 WARN L151 SmtUtils]: Spent 276ms on a formula simplification. DAG size of input: 60 DAG size of output 45 [2018-04-05 16:28:01,203 WARN L151 SmtUtils]: Spent 209ms on a formula simplification. DAG size of input: 55 DAG size of output 40 [2018-04-05 16:28:01,626 WARN L151 SmtUtils]: Spent 186ms on a formula simplification. DAG size of input: 49 DAG size of output 38 [2018-04-05 16:28:02,090 WARN L151 SmtUtils]: Spent 293ms on a formula simplification. DAG size of input: 54 DAG size of output 43 [2018-04-05 16:28:02,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:28:02,162 INFO L93 Difference]: Finished difference Result 273 states and 289 transitions. [2018-04-05 16:28:02,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-04-05 16:28:02,163 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 77 [2018-04-05 16:28:02,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:28:02,166 INFO L225 Difference]: With dead ends: 273 [2018-04-05 16:28:02,166 INFO L226 Difference]: Without dead ends: 272 [2018-04-05 16:28:02,171 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1830 ImplicationChecksByTransitivity, 24.8s TimeCoverageRelationStatistics Valid=1486, Invalid=8020, Unknown=0, NotChecked=0, Total=9506 [2018-04-05 16:28:02,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-04-05 16:28:02,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 237. [2018-04-05 16:28:02,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-04-05 16:28:02,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 250 transitions. [2018-04-05 16:28:02,220 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 250 transitions. Word has length 77 [2018-04-05 16:28:02,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:28:02,220 INFO L459 AbstractCegarLoop]: Abstraction has 237 states and 250 transitions. [2018-04-05 16:28:02,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-05 16:28:02,220 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 250 transitions. [2018-04-05 16:28:02,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-05 16:28:02,221 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:28:02,229 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-05 16:28:02,229 INFO L408 AbstractCegarLoop]: === Iteration 20 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:28:02,229 INFO L82 PathProgramCache]: Analyzing trace with hash -2061919339, now seen corresponding path program 2 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 16:28:02,245 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:28:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:28:02,299 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:28:02,313 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 16:28:02,314 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:02,348 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 16:28:02,349 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:02,395 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:02,396 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 16:28:02,483 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:28:02,491 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 16:28:02,492 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:02,557 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:28:02,561 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:28:02,562 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 16:28:02,562 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:02,604 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:02,605 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 16:28:06,506 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:06,506 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:28:10,878 WARN L151 SmtUtils]: Spent 151ms on a formula simplification. DAG size of input: 21 DAG size of output 19 [2018-04-05 16:28:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:14,230 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:28:14,231 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 21] total 46 [2018-04-05 16:28:14,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-04-05 16:28:14,231 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-04-05 16:28:14,232 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=2000, Unknown=0, NotChecked=0, Total=2162 [2018-04-05 16:28:14,233 INFO L87 Difference]: Start difference. First operand 237 states and 250 transitions. Second operand 47 states. [2018-04-05 16:28:16,783 WARN L148 SmtUtils]: Spent 108ms on a formula simplification that was a NOOP. DAG size: 31 [2018-04-05 16:28:17,528 WARN L151 SmtUtils]: Spent 236ms on a formula simplification. DAG size of input: 54 DAG size of output 41 [2018-04-05 16:28:18,031 WARN L151 SmtUtils]: Spent 249ms on a formula simplification. DAG size of input: 52 DAG size of output 41 [2018-04-05 16:28:18,484 WARN L151 SmtUtils]: Spent 228ms on a formula simplification. DAG size of input: 55 DAG size of output 44 [2018-04-05 16:28:19,255 WARN L151 SmtUtils]: Spent 540ms on a formula simplification. DAG size of input: 79 DAG size of output 72 [2018-04-05 16:28:20,159 WARN L151 SmtUtils]: Spent 562ms on a formula simplification. DAG size of input: 81 DAG size of output 72 [2018-04-05 16:28:20,647 WARN L151 SmtUtils]: Spent 284ms on a formula simplification. DAG size of input: 43 DAG size of output 41 [2018-04-05 16:28:21,200 WARN L151 SmtUtils]: Spent 285ms on a formula simplification. DAG size of input: 47 DAG size of output 45 [2018-04-05 16:28:21,633 WARN L151 SmtUtils]: Spent 203ms on a formula simplification. DAG size of input: 42 DAG size of output 40 [2018-04-05 16:28:22,102 WARN L151 SmtUtils]: Spent 173ms on a formula simplification. DAG size of input: 36 DAG size of output 35 [2018-04-05 16:28:22,910 WARN L151 SmtUtils]: Spent 260ms on a formula simplification. DAG size of input: 46 DAG size of output 42 [2018-04-05 16:28:23,609 WARN L151 SmtUtils]: Spent 315ms on a formula simplification. DAG size of input: 54 DAG size of output 43 [2018-04-05 16:28:24,490 WARN L151 SmtUtils]: Spent 435ms on a formula simplification. DAG size of input: 74 DAG size of output 66 [2018-04-05 16:28:25,086 WARN L151 SmtUtils]: Spent 207ms on a formula simplification. DAG size of input: 41 DAG size of output 39 [2018-04-05 16:28:25,544 WARN L148 SmtUtils]: Spent 183ms on a formula simplification that was a NOOP. DAG size: 45 [2018-04-05 16:28:25,923 WARN L151 SmtUtils]: Spent 168ms on a formula simplification. DAG size of input: 40 DAG size of output 38 [2018-04-05 16:28:26,339 WARN L151 SmtUtils]: Spent 151ms on a formula simplification. DAG size of input: 34 DAG size of output 33 [2018-04-05 16:28:27,119 WARN L151 SmtUtils]: Spent 287ms on a formula simplification. DAG size of input: 42 DAG size of output 38 [2018-04-05 16:28:27,607 WARN L151 SmtUtils]: Spent 182ms on a formula simplification. DAG size of input: 43 DAG size of output 39 [2018-04-05 16:28:28,987 WARN L151 SmtUtils]: Spent 357ms on a formula simplification. DAG size of input: 66 DAG size of output 61 [2018-04-05 16:28:29,736 WARN L151 SmtUtils]: Spent 404ms on a formula simplification. DAG size of input: 70 DAG size of output 62 [2018-04-05 16:28:30,258 WARN L148 SmtUtils]: Spent 165ms on a formula simplification that was a NOOP. DAG size: 61 [2018-04-05 16:28:30,897 WARN L151 SmtUtils]: Spent 433ms on a formula simplification. DAG size of input: 67 DAG size of output 59 [2018-04-05 16:28:32,313 WARN L151 SmtUtils]: Spent 924ms on a formula simplification. DAG size of input: 94 DAG size of output 79 [2018-04-05 16:28:33,415 WARN L151 SmtUtils]: Spent 738ms on a formula simplification. DAG size of input: 87 DAG size of output 78 [2018-04-05 16:28:34,370 WARN L151 SmtUtils]: Spent 379ms on a formula simplification. DAG size of input: 59 DAG size of output 57 [2018-04-05 16:28:35,025 WARN L151 SmtUtils]: Spent 426ms on a formula simplification. DAG size of input: 63 DAG size of output 61 [2018-04-05 16:28:35,406 WARN L148 SmtUtils]: Spent 184ms on a formula simplification that was a NOOP. DAG size: 58 [2018-04-05 16:28:35,866 WARN L151 SmtUtils]: Spent 262ms on a formula simplification. DAG size of input: 53 DAG size of output 48 [2018-04-05 16:28:36,227 WARN L148 SmtUtils]: Spent 140ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 16:28:36,887 WARN L151 SmtUtils]: Spent 493ms on a formula simplification. DAG size of input: 71 DAG size of output 61 [2018-04-05 16:28:37,589 WARN L151 SmtUtils]: Spent 464ms on a formula simplification. DAG size of input: 67 DAG size of output 62 [2018-04-05 16:28:37,953 WARN L148 SmtUtils]: Spent 137ms on a formula simplification that was a NOOP. DAG size: 48 [2018-04-05 16:28:38,309 WARN L148 SmtUtils]: Spent 168ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 16:28:38,642 WARN L148 SmtUtils]: Spent 132ms on a formula simplification that was a NOOP. DAG size: 47 [2018-04-05 16:28:39,073 WARN L151 SmtUtils]: Spent 246ms on a formula simplification. DAG size of input: 42 DAG size of output 39 [2018-04-05 16:28:39,397 WARN L148 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:28:39,902 WARN L151 SmtUtils]: Spent 319ms on a formula simplification. DAG size of input: 54 DAG size of output 48 [2018-04-05 16:28:40,520 WARN L151 SmtUtils]: Spent 319ms on a formula simplification. DAG size of input: 50 DAG size of output 47 [2018-04-05 16:28:41,152 WARN L148 SmtUtils]: Spent 109ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 16:28:42,110 WARN L148 SmtUtils]: Spent 154ms on a formula simplification that was a NOOP. DAG size: 35 [2018-04-05 16:28:42,692 WARN L148 SmtUtils]: Spent 131ms on a formula simplification that was a NOOP. DAG size: 29 [2018-04-05 16:28:43,407 WARN L148 SmtUtils]: Spent 156ms on a formula simplification that was a NOOP. DAG size: 39 [2018-04-05 16:28:43,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:28:43,408 INFO L93 Difference]: Finished difference Result 285 states and 298 transitions. [2018-04-05 16:28:43,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-04-05 16:28:43,408 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 78 [2018-04-05 16:28:43,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:28:43,410 INFO L225 Difference]: With dead ends: 285 [2018-04-05 16:28:43,410 INFO L226 Difference]: Without dead ends: 284 [2018-04-05 16:28:43,416 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1849 ImplicationChecksByTransitivity, 35.2s TimeCoverageRelationStatistics Valid=1327, Invalid=9385, Unknown=0, NotChecked=0, Total=10712 [2018-04-05 16:28:43,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2018-04-05 16:28:43,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 251. [2018-04-05 16:28:43,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2018-04-05 16:28:43,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 261 transitions. [2018-04-05 16:28:43,476 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 261 transitions. Word has length 78 [2018-04-05 16:28:43,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:28:43,476 INFO L459 AbstractCegarLoop]: Abstraction has 251 states and 261 transitions. [2018-04-05 16:28:43,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-04-05 16:28:43,476 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 261 transitions. [2018-04-05 16:28:43,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-05 16:28:43,478 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:28:43,478 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 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] [2018-04-05 16:28:43,478 INFO L408 AbstractCegarLoop]: === Iteration 21 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:28:43,478 INFO L82 PathProgramCache]: Analyzing trace with hash -735687647, now seen corresponding path program 1 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 16:28:43,521 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:28:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:28:43,591 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:28:43,595 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 16:28:43,596 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:43,629 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 16:28:43,630 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:43,656 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:43,657 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 16:28:43,743 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:28:43,748 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 16:28:43,749 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:43,809 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:28:43,815 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:28:43,816 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 16:28:43,816 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:28:43,846 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:28:43,846 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 16:28:46,724 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:46,725 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:28:48,455 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:28:48,476 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:28:48,476 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 24] total 52 [2018-04-05 16:28:48,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-04-05 16:28:48,477 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-04-05 16:28:48,477 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=2565, Unknown=0, NotChecked=0, Total=2756 [2018-04-05 16:28:48,477 INFO L87 Difference]: Start difference. First operand 251 states and 261 transitions. Second operand 53 states. [2018-04-05 16:28:49,916 WARN L151 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 65 DAG size of output 63 [2018-04-05 16:28:52,924 WARN L151 SmtUtils]: Spent 1996ms on a formula simplification. DAG size of input: 67 DAG size of output 62 [2018-04-05 16:28:53,265 WARN L148 SmtUtils]: Spent 154ms on a formula simplification that was a NOOP. DAG size: 58 [2018-04-05 16:28:53,671 WARN L148 SmtUtils]: Spent 190ms on a formula simplification that was a NOOP. DAG size: 48 [2018-04-05 16:28:54,590 WARN L148 SmtUtils]: Spent 251ms on a formula simplification that was a NOOP. DAG size: 52 [2018-04-05 16:28:58,715 WARN L151 SmtUtils]: Spent 124ms on a formula simplification. DAG size of input: 81 DAG size of output 71 [2018-04-05 16:28:59,086 WARN L151 SmtUtils]: Spent 125ms on a formula simplification. DAG size of input: 78 DAG size of output 68 [2018-04-05 16:28:59,884 WARN L151 SmtUtils]: Spent 340ms on a formula simplification. DAG size of input: 100 DAG size of output 84 [2018-04-05 16:29:00,192 WARN L151 SmtUtils]: Spent 136ms on a formula simplification. DAG size of input: 73 DAG size of output 67 [2018-04-05 16:29:00,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:29:00,858 INFO L93 Difference]: Finished difference Result 301 states and 311 transitions. [2018-04-05 16:29:00,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-04-05 16:29:00,858 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 78 [2018-04-05 16:29:00,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:29:00,859 INFO L225 Difference]: With dead ends: 301 [2018-04-05 16:29:00,859 INFO L226 Difference]: Without dead ends: 300 [2018-04-05 16:29:00,860 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2552 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=1482, Invalid=13038, Unknown=0, NotChecked=0, Total=14520 [2018-04-05 16:29:00,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-04-05 16:29:00,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 245. [2018-04-05 16:29:00,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2018-04-05 16:29:00,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 255 transitions. [2018-04-05 16:29:00,881 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 255 transitions. Word has length 78 [2018-04-05 16:29:00,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:29:00,882 INFO L459 AbstractCegarLoop]: Abstraction has 245 states and 255 transitions. [2018-04-05 16:29:00,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-04-05 16:29:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 255 transitions. [2018-04-05 16:29:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-05 16:29:00,883 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:29:00,883 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2018-04-05 16:29:00,883 INFO L408 AbstractCegarLoop]: === Iteration 22 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:29:00,883 INFO L82 PathProgramCache]: Analyzing trace with hash 2109742102, now seen corresponding path program 2 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 16:29:00,898 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:29:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:29:00,954 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:29:00,972 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 16:29:00,973 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:29:01,018 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 16:29:01,018 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:29:01,022 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:29:01,023 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 16:29:01,057 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:29:01,058 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 16:29:01,059 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:29:01,068 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:29:01,069 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:29:01,069 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 16:29:01,070 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:29:01,075 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:29:01,075 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 16:29:01,756 WARN L148 SmtUtils]: Spent 193ms on a formula simplification that was a NOOP. DAG size: 12 [2018-04-05 16:29:05,674 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:29:05,674 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:29:10,404 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 21 DAG size of output 19 [2018-04-05 16:29:12,617 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:29:12,708 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:29:12,708 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 24] total 53 [2018-04-05 16:29:12,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-04-05 16:29:12,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-04-05 16:29:12,709 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=2664, Unknown=0, NotChecked=0, Total=2862 [2018-04-05 16:29:12,709 INFO L87 Difference]: Start difference. First operand 245 states and 255 transitions. Second operand 54 states. [2018-04-05 16:29:16,057 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 34 [2018-04-05 16:29:16,405 WARN L148 SmtUtils]: Spent 116ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 16:29:16,792 WARN L148 SmtUtils]: Spent 110ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 16:29:17,158 WARN L148 SmtUtils]: Spent 120ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 16:29:17,875 WARN L151 SmtUtils]: Spent 442ms on a formula simplification. DAG size of input: 76 DAG size of output 71 [2018-04-05 16:29:18,923 WARN L148 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 33 [2018-04-05 16:29:19,506 WARN L148 SmtUtils]: Spent 102ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:29:20,143 WARN L151 SmtUtils]: Spent 348ms on a formula simplification. DAG size of input: 54 DAG size of output 52 [2018-04-05 16:29:21,030 WARN L148 SmtUtils]: Spent 153ms on a formula simplification that was a NOOP. DAG size: 48 [2018-04-05 16:29:21,374 WARN L148 SmtUtils]: Spent 118ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-05 16:29:21,936 WARN L151 SmtUtils]: Spent 291ms on a formula simplification. DAG size of input: 50 DAG size of output 47 [2018-04-05 16:29:22,423 WARN L148 SmtUtils]: Spent 210ms on a formula simplification that was a NOOP. DAG size: 74 [2018-04-05 16:29:23,205 WARN L148 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 41 [2018-04-05 16:29:26,255 WARN L148 SmtUtils]: Spent 102ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:29:26,838 WARN L151 SmtUtils]: Spent 304ms on a formula simplification. DAG size of input: 54 DAG size of output 52 [2018-04-05 16:29:27,720 WARN L148 SmtUtils]: Spent 170ms on a formula simplification that was a NOOP. DAG size: 67 [2018-04-05 16:29:29,215 WARN L148 SmtUtils]: Spent 196ms on a formula simplification that was a NOOP. DAG size: 67 [2018-04-05 16:29:29,701 WARN L151 SmtUtils]: Spent 192ms on a formula simplification. DAG size of input: 48 DAG size of output 35 [2018-04-05 16:29:31,123 WARN L151 SmtUtils]: Spent 1054ms on a formula simplification. DAG size of input: 84 DAG size of output 82 [2018-04-05 16:29:31,953 WARN L151 SmtUtils]: Spent 209ms on a formula simplification. DAG size of input: 43 DAG size of output 39 [2018-04-05 16:29:33,093 WARN L151 SmtUtils]: Spent 676ms on a formula simplification. DAG size of input: 84 DAG size of output 82 [2018-04-05 16:29:34,176 WARN L151 SmtUtils]: Spent 453ms on a formula simplification. DAG size of input: 77 DAG size of output 70 [2018-04-05 16:29:34,769 WARN L151 SmtUtils]: Spent 350ms on a formula simplification. DAG size of input: 62 DAG size of output 60 [2018-04-05 16:29:35,405 WARN L151 SmtUtils]: Spent 382ms on a formula simplification. DAG size of input: 81 DAG size of output 71 [2018-04-05 16:29:36,004 WARN L151 SmtUtils]: Spent 399ms on a formula simplification. DAG size of input: 78 DAG size of output 68 [2018-04-05 16:29:36,836 WARN L151 SmtUtils]: Spent 523ms on a formula simplification. DAG size of input: 94 DAG size of output 80 [2018-04-05 16:29:37,400 WARN L151 SmtUtils]: Spent 281ms on a formula simplification. DAG size of input: 56 DAG size of output 52 [2018-04-05 16:29:37,954 WARN L151 SmtUtils]: Spent 339ms on a formula simplification. DAG size of input: 62 DAG size of output 60 [2018-04-05 16:29:38,823 WARN L151 SmtUtils]: Spent 502ms on a formula simplification. DAG size of input: 78 DAG size of output 76 [2018-04-05 16:29:40,394 WARN L151 SmtUtils]: Spent 1254ms on a formula simplification. DAG size of input: 72 DAG size of output 70 [2018-04-05 16:29:40,910 WARN L148 SmtUtils]: Spent 251ms on a formula simplification that was a NOOP. DAG size: 68 [2018-04-05 16:29:41,349 WARN L148 SmtUtils]: Spent 151ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 16:29:41,753 WARN L148 SmtUtils]: Spent 151ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 16:29:42,286 WARN L148 SmtUtils]: Spent 191ms on a formula simplification that was a NOOP. DAG size: 61 [2018-04-05 16:29:42,656 WARN L148 SmtUtils]: Spent 175ms on a formula simplification that was a NOOP. DAG size: 61 [2018-04-05 16:29:43,024 WARN L148 SmtUtils]: Spent 138ms on a formula simplification that was a NOOP. DAG size: 51 [2018-04-05 16:29:43,683 WARN L148 SmtUtils]: Spent 103ms on a formula simplification that was a NOOP. DAG size: 40 [2018-04-05 16:29:44,040 WARN L148 SmtUtils]: Spent 145ms on a formula simplification that was a NOOP. DAG size: 50 [2018-04-05 16:29:44,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-05 16:29:44,487 INFO L93 Difference]: Finished difference Result 319 states and 330 transitions. [2018-04-05 16:29:44,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-04-05 16:29:44,487 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 84 [2018-04-05 16:29:44,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-05 16:29:44,489 INFO L225 Difference]: With dead ends: 319 [2018-04-05 16:29:44,489 INFO L226 Difference]: Without dead ends: 318 [2018-04-05 16:29:44,490 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2223 ImplicationChecksByTransitivity, 36.0s TimeCoverageRelationStatistics Valid=1390, Invalid=12182, Unknown=0, NotChecked=0, Total=13572 [2018-04-05 16:29:44,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2018-04-05 16:29:44,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 228. [2018-04-05 16:29:44,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-04-05 16:29:44,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 237 transitions. [2018-04-05 16:29:44,562 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 237 transitions. Word has length 84 [2018-04-05 16:29:44,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-05 16:29:44,562 INFO L459 AbstractCegarLoop]: Abstraction has 228 states and 237 transitions. [2018-04-05 16:29:44,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-04-05 16:29:44,562 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 237 transitions. [2018-04-05 16:29:44,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-04-05 16:29:44,563 INFO L347 BasicCegarLoop]: Found error trace [2018-04-05 16:29:44,563 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-05 16:29:44,563 INFO L408 AbstractCegarLoop]: === Iteration 23 === [__U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr4RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr0RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr5RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr1RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr2RequiresViolation, __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpyErr3RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-04-05 16:29:44,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1163056330, now seen corresponding path program 3 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 16:29:44,593 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-05 16:29:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-05 16:29:44,652 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-05 16:29:44,657 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 16:29:44,658 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:29:44,688 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 16:29:44,689 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:29:44,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:29:44,713 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-05 16:29:44,807 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:29:44,812 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 16:29:44,813 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-05 16:29:44,873 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:29:44,879 INFO L700 Elim1Store]: detected not equals via solver [2018-04-05 16:29:44,880 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 16:29:44,880 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-05 16:29:44,912 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-05 16:29:44,912 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-05 16:29:48,442 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:29:48,443 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-05 16:29:57,671 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-05 16:29:57,707 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-05 16:29:57,708 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 60 [2018-04-05 16:29:57,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-04-05 16:29:57,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-04-05 16:29:57,709 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=3410, Unknown=0, NotChecked=0, Total=3660 [2018-04-05 16:29:57,709 INFO L87 Difference]: Start difference. First operand 228 states and 237 transitions. Second operand 61 states. [2018-04-05 16:30:02,292 WARN L151 SmtUtils]: Spent 547ms on a formula simplification. DAG size of input: 38 DAG size of output 36 [2018-04-05 16:30:02,656 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 32 DAG size of output 30 [2018-04-05 16:30:04,215 WARN L151 SmtUtils]: Spent 183ms on a formula simplification. DAG size of input: 31 DAG size of output 29 [2018-04-05 16:30:06,416 WARN L151 SmtUtils]: Spent 933ms on a formula simplification. DAG size of input: 65 DAG size of output 57 [2018-04-05 16:30:08,012 WARN L151 SmtUtils]: Spent 635ms on a formula simplification. DAG size of input: 76 DAG size of output 67 [2018-04-05 16:30:08,648 WARN L151 SmtUtils]: Spent 271ms on a formula simplification. DAG size of input: 51 DAG size of output 49 [2018-04-05 16:30:09,299 WARN L151 SmtUtils]: Spent 187ms on a formula simplification. DAG size of input: 38 DAG size of output 36 [2018-04-05 16:30:09,857 WARN L151 SmtUtils]: Spent 322ms on a formula simplification. DAG size of input: 55 DAG size of output 53 [2018-04-05 16:30:10,255 WARN L148 SmtUtils]: Spent 158ms on a formula simplification that was a NOOP. DAG size: 50