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 0.1.23-8168ed2-m [2018-04-11 20:46:16,488 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 20:46:16,489 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 20:46:16,503 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-04-11 20:46:16,531 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 [2018-04-11 20:46:16,556 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 20:46:16,556 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 20:46:16,556 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-04-11 20:46:16,557 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-04-11 20:46:16,557 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-04-11 20:46:16,558 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-04-11 20:46:16,558 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-04-11 20:46:16,558 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-04-11 20:46:16,558 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-04-11 20:46:16,558 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-04-11 20:46:16,559 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-04-11 20:46:16,559 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-04-11 20:46:16,559 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 20:46:16,559 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 20:46:16,560 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 20:46:16,560 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 20:46:16,560 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 20:46:16,560 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 20:46:16,560 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 20:46:16,561 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-04-11 20:46:16,561 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 20:46:16,561 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 20:46:16,561 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 20:46:16,561 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-04-11 20:46:16,562 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-04-11 20:46:16,562 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 20:46:16,562 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:46:16,562 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 20:46:16,563 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 20:46:16,563 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 20:46:16,563 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-04-11 20:46:16,563 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-04-11 20:46:16,563 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:46:16,563 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-04-11 20:46:16,564 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-04-11 20:46:16,565 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-04-11 20:46:16,565 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-04-11 20:46:16,565 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-04-11 20:46:16,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 20:46:16,613 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 20:46:16,617 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 20:46:16,619 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 20:46:16,619 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 20:46:16,620 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 [2018-04-11 20:46:16,976 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGc7ac45f44 [2018-04-11 20:46:17,139 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 20:46:17,139 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 20:46:17,139 INFO L168 CDTParser]: Scanning openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:46:17,150 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 20:46:17,150 INFO L215 ultiparseSymbolTable]: [2018-04-11 20:46:17,150 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 20:46:17,150 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 [2018-04-11 20:46:17,150 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 [2018-04-11 20:46:17,150 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:46:17,151 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 [2018-04-11 20:46:17,151 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 20:46:17,151 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 [2018-04-11 20:46:17,151 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 [2018-04-11 20:46:17,151 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 [2018-04-11 20:46:17,151 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 [2018-04-11 20:46:17,151 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 [2018-04-11 20:46:17,151 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 [2018-04-11 20:46:17,152 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 [2018-04-11 20:46:17,152 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 [2018-04-11 20:46:17,152 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 [2018-04-11 20:46:17,152 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 [2018-04-11 20:46:17,152 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 [2018-04-11 20:46:17,152 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 [2018-04-11 20:46:17,152 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 [2018-04-11 20:46:17,152 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 [2018-04-11 20:46:17,153 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 [2018-04-11 20:46:17,153 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 [2018-04-11 20:46:17,153 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 [2018-04-11 20:46:17,153 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 [2018-04-11 20:46:17,153 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 [2018-04-11 20:46:17,153 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 [2018-04-11 20:46:17,153 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 [2018-04-11 20:46:17,153 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 [2018-04-11 20:46:17,154 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 [2018-04-11 20:46:17,154 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 [2018-04-11 20:46:17,154 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 [2018-04-11 20:46:17,154 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 [2018-04-11 20:46:17,154 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 [2018-04-11 20:46:17,154 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 [2018-04-11 20:46:17,154 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 [2018-04-11 20:46:17,154 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 [2018-04-11 20:46:17,155 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 [2018-04-11 20:46:17,155 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 [2018-04-11 20:46:17,155 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 [2018-04-11 20:46:17,155 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 [2018-04-11 20:46:17,155 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 [2018-04-11 20:46:17,155 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 [2018-04-11 20:46:17,155 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 [2018-04-11 20:46:17,155 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 [2018-04-11 20:46:17,155 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 [2018-04-11 20:46:17,156 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 [2018-04-11 20:46:17,156 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 [2018-04-11 20:46:17,156 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 [2018-04-11 20:46:17,156 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 [2018-04-11 20:46:17,156 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 [2018-04-11 20:46:17,156 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 [2018-04-11 20:46:17,156 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 [2018-04-11 20:46:17,157 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 [2018-04-11 20:46:17,157 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 [2018-04-11 20:46:17,157 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 [2018-04-11 20:46:17,157 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 [2018-04-11 20:46:17,157 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 [2018-04-11 20:46:17,157 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 [2018-04-11 20:46:17,157 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 [2018-04-11 20:46:17,157 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 [2018-04-11 20:46:17,157 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 [2018-04-11 20:46:17,157 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,158 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,159 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,160 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 [2018-04-11 20:46:17,161 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 [2018-04-11 20:46:17,161 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 [2018-04-11 20:46:17,161 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 [2018-04-11 20:46:17,161 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 [2018-04-11 20:46:17,161 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 [2018-04-11 20:46:17,161 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 [2018-04-11 20:46:17,161 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 [2018-04-11 20:46:17,161 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 [2018-04-11 20:46:17,161 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 [2018-04-11 20:46:17,161 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 [2018-04-11 20:46:17,161 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 [2018-04-11 20:46:17,162 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 [2018-04-11 20:46:17,162 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 [2018-04-11 20:46:17,162 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 [2018-04-11 20:46:17,162 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 [2018-04-11 20:46:17,162 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 [2018-04-11 20:46:17,162 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 [2018-04-11 20:46:17,162 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 [2018-04-11 20:46:17,162 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 [2018-04-11 20:46:17,183 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGc7ac45f44 [2018-04-11 20:46:17,187 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 20:46:17,189 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 20:46:17,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 20:46:17,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 20:46:17,195 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 20:46:17,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:46:17" (1/1) ... [2018-04-11 20:46:17,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e3be04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:46:17, skipping insertion in model container [2018-04-11 20:46:17,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 08:46:17" (1/1) ... [2018-04-11 20:46:17,212 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:46:17,244 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 20:46:17,403 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:46:17,448 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 20:46:17,456 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-04-11 20:46:17,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:46:17 WrapperNode [2018-04-11 20:46:17,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 20:46:17,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 20:46:17,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 20:46:17,506 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 20:46:17,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:46:17" (1/1) ... [2018-04-11 20:46:17,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:46:17" (1/1) ... [2018-04-11 20:46:17,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:46:17" (1/1) ... [2018-04-11 20:46:17,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:46:17" (1/1) ... [2018-04-11 20:46:17,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:46:17" (1/1) ... [2018-04-11 20:46:17,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:46:17" (1/1) ... [2018-04-11 20:46:17,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:46:17" (1/1) ... [2018-04-11 20:46:17,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 20:46:17,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 20:46:17,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 20:46:17,562 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 20:46:17,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:46:17" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 20:46:17,687 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 20:46:17,688 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 20:46:17,688 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:46:17,688 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:46:17,688 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpy [2018-04-11 20:46:17,688 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 20:46:17,688 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-04-11 20:46:17,688 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-04-11 20:46:17,688 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-04-11 20:46:17,688 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-04-11 20:46:17,689 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-04-11 20:46:17,689 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-04-11 20:46:17,689 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-04-11 20:46:17,689 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-04-11 20:46:17,689 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-04-11 20:46:17,689 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-04-11 20:46:17,689 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-04-11 20:46:17,689 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-04-11 20:46:17,689 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-04-11 20:46:17,689 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-04-11 20:46:17,690 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-04-11 20:46:17,690 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-04-11 20:46:17,690 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-04-11 20:46:17,690 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-04-11 20:46:17,690 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-04-11 20:46:17,690 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-04-11 20:46:17,690 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-04-11 20:46:17,690 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-04-11 20:46:17,690 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-04-11 20:46:17,690 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-04-11 20:46:17,691 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-04-11 20:46:17,691 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-04-11 20:46:17,691 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-04-11 20:46:17,691 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-04-11 20:46:17,691 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-04-11 20:46:17,691 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-04-11 20:46:17,691 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-04-11 20:46:17,691 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-04-11 20:46:17,692 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-04-11 20:46:17,692 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-04-11 20:46:17,692 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-04-11 20:46:17,692 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-04-11 20:46:17,692 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-04-11 20:46:17,692 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-04-11 20:46:17,692 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-04-11 20:46:17,693 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-04-11 20:46:17,693 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-04-11 20:46:17,693 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-04-11 20:46:17,693 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-04-11 20:46:17,693 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-04-11 20:46:17,693 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-04-11 20:46:17,693 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-04-11 20:46:17,693 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-04-11 20:46:17,694 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-04-11 20:46:17,694 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-04-11 20:46:17,694 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-04-11 20:46:17,694 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-04-11 20:46:17,694 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-04-11 20:46:17,694 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-04-11 20:46:17,694 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-04-11 20:46:17,694 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-04-11 20:46:17,695 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-04-11 20:46:17,695 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-04-11 20:46:17,695 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-04-11 20:46:17,695 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-04-11 20:46:17,695 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-04-11 20:46:17,695 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-04-11 20:46:17,695 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-04-11 20:46:17,696 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-04-11 20:46:17,696 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-04-11 20:46:17,696 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-04-11 20:46:17,696 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-04-11 20:46:17,696 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-04-11 20:46:17,696 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-04-11 20:46:17,696 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-04-11 20:46:17,696 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-04-11 20:46:17,697 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-04-11 20:46:17,697 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-04-11 20:46:17,697 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-04-11 20:46:17,697 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-04-11 20:46:17,697 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-04-11 20:46:17,697 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-04-11 20:46:17,697 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-04-11 20:46:17,697 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-04-11 20:46:17,698 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-04-11 20:46:17,698 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-04-11 20:46:17,698 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-04-11 20:46:17,698 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-04-11 20:46:17,698 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-04-11 20:46:17,698 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-04-11 20:46:17,698 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-04-11 20:46:17,698 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-04-11 20:46:17,699 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-04-11 20:46:17,699 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-04-11 20:46:17,699 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-04-11 20:46:17,699 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-04-11 20:46:17,699 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-04-11 20:46:17,699 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-04-11 20:46:17,699 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-04-11 20:46:17,700 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-04-11 20:46:17,700 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-04-11 20:46:17,700 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-04-11 20:46:17,700 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-04-11 20:46:17,700 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-04-11 20:46:17,700 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-04-11 20:46:17,700 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-04-11 20:46:17,700 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-04-11 20:46:17,701 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-04-11 20:46:17,701 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-04-11 20:46:17,701 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrncpy_alloca_true_valid_memsafety_true_termination_i__cstrncpy [2018-04-11 20:46:17,701 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 20:46:17,701 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 20:46:17,701 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 20:46:17,701 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 20:46:17,701 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 20:46:17,702 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 20:46:17,702 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 20:46:17,702 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 20:46:18,066 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 20:46:18,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:46:18 BoogieIcfgContainer [2018-04-11 20:46:18,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 20:46:18,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 20:46:18,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 20:46:18,070 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 20:46:18,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 08:46:17" (1/3) ... [2018-04-11 20:46:18,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b219081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:46:18, skipping insertion in model container [2018-04-11 20:46:18,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 08:46:17" (2/3) ... [2018-04-11 20:46:18,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b219081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 08:46:18, skipping insertion in model container [2018-04-11 20:46:18,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 08:46:18" (3/3) ... [2018-04-11 20:46:18,073 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i [2018-04-11 20:46:18,080 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 20:46:18,087 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-04-11 20:46:18,125 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 20:46:18,126 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 20:46:18,126 INFO L370 AbstractCegarLoop]: Hoare is true [2018-04-11 20:46:18,126 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 20:46:18,126 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 20:46:18,126 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 20:46:18,126 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 20:46:18,126 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 20:46:18,127 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 20:46:18,127 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 20:46:18,144 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2018-04-11 20:46:18,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-11 20:46:18,149 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:18,150 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:46:18,150 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]=== [2018-04-11 20:46:18,156 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 [2018-04-11 20:46:18,168 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:18,204 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:18,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:18,245 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:18,260 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:18,260 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 20:46:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:18,275 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:18,318 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:46:18,319 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-04-11 20:46:18,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-04-11 20:46:18,330 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-04-11 20:46:18,331 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-04-11 20:46:18,332 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 4 states. [2018-04-11 20:46:18,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:18,465 INFO L93 Difference]: Finished difference Result 93 states and 99 transitions. [2018-04-11 20:46:18,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-04-11 20:46:18,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-04-11 20:46:18,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:18,479 INFO L225 Difference]: With dead ends: 93 [2018-04-11 20:46:18,479 INFO L226 Difference]: Without dead ends: 75 [2018-04-11 20:46:18,482 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:46:18,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-04-11 20:46:18,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-04-11 20:46:18,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-04-11 20:46:18,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2018-04-11 20:46:18,521 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 19 [2018-04-11 20:46:18,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:18,522 INFO L459 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2018-04-11 20:46:18,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-04-11 20:46:18,522 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2018-04-11 20:46:18,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-04-11 20:46:18,522 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:18,522 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:46:18,523 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]=== [2018-04-11 20:46:18,523 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 [2018-04-11 20:46:18,530 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:18,546 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:18,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:18,578 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:18,583 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:18,583 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-04-11 20:46:18,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:18,604 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:18,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:18,672 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:46:18,672 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-04-11 20:46:18,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:46:18,674 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:46:18,674 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:46:18,675 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 7 states. [2018-04-11 20:46:18,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:18,782 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2018-04-11 20:46:18,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:46:18,782 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-04-11 20:46:18,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:18,783 INFO L225 Difference]: With dead ends: 75 [2018-04-11 20:46:18,784 INFO L226 Difference]: Without dead ends: 74 [2018-04-11 20:46:18,785 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-04-11 20:46:18,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-04-11 20:46:18,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-04-11 20:46:18,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-04-11 20:46:18,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2018-04-11 20:46:18,794 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 19 [2018-04-11 20:46:18,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:18,795 INFO L459 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2018-04-11 20:46:18,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:46:18,795 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2018-04-11 20:46:18,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-11 20:46:18,796 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:18,796 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] [2018-04-11 20:46:18,797 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]=== [2018-04-11 20:46:18,797 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 [2018-04-11 20:46:18,809 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:18,840 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:18,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:18,882 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:18,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:18,932 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:46:18,932 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-04-11 20:46:18,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 20:46:18,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 20:46:18,933 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:46:18,933 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 7 states. [2018-04-11 20:46:19,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:19,071 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2018-04-11 20:46:19,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-04-11 20:46:19,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-04-11 20:46:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:19,075 INFO L225 Difference]: With dead ends: 77 [2018-04-11 20:46:19,075 INFO L226 Difference]: Without dead ends: 76 [2018-04-11 20:46:19,076 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:46:19,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-04-11 20:46:19,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2018-04-11 20:46:19,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-04-11 20:46:19,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2018-04-11 20:46:19,084 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 32 [2018-04-11 20:46:19,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:19,084 INFO L459 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2018-04-11 20:46:19,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 20:46:19,085 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2018-04-11 20:46:19,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-04-11 20:46:19,086 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:19,086 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] [2018-04-11 20:46:19,086 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]=== [2018-04-11 20:46:19,087 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 [2018-04-11 20:46:19,094 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:19,117 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:19,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:19,390 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:19,404 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 [2018-04-11 20:46:19,404 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:19,417 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 [2018-04-11 20:46:19,417 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:19,421 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:46:19,421 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-04-11 20:46:19,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:19,468 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:46:19,468 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-04-11 20:46:19,469 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 20:46:19,469 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 20:46:19,469 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-04-11 20:46:19,470 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 10 states. [2018-04-11 20:46:19,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:19,676 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2018-04-11 20:46:19,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 20:46:19,677 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-04-11 20:46:19,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:19,678 INFO L225 Difference]: With dead ends: 80 [2018-04-11 20:46:19,678 INFO L226 Difference]: Without dead ends: 79 [2018-04-11 20:46:19,679 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-04-11 20:46:19,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-04-11 20:46:19,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-04-11 20:46:19,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-11 20:46:19,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2018-04-11 20:46:19,688 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 32 [2018-04-11 20:46:19,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:19,689 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2018-04-11 20:46:19,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 20:46:19,689 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2018-04-11 20:46:19,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-11 20:46:19,690 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:19,690 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] [2018-04-11 20:46:19,691 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]=== [2018-04-11 20:46:19,691 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 [2018-04-11 20:46:19,702 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:19,735 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:19,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:19,739 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:19,741 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:19,742 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 20:46:19,755 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 [2018-04-11 20:46:19,756 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:19,760 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:19,761 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-04-11 20:46:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:19,819 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:19,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:19,887 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:46:19,887 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2018-04-11 20:46:19,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:46:19,888 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:46:19,888 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-04-11 20:46:19,888 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 12 states. [2018-04-11 20:46:20,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:20,112 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2018-04-11 20:46:20,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:46:20,112 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2018-04-11 20:46:20,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:20,113 INFO L225 Difference]: With dead ends: 90 [2018-04-11 20:46:20,113 INFO L226 Difference]: Without dead ends: 89 [2018-04-11 20:46:20,114 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-04-11 20:46:20,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-04-11 20:46:20,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 78. [2018-04-11 20:46:20,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-04-11 20:46:20,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2018-04-11 20:46:20,119 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 33 [2018-04-11 20:46:20,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:20,119 INFO L459 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2018-04-11 20:46:20,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:46:20,119 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2018-04-11 20:46:20,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-04-11 20:46:20,120 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:20,120 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] [2018-04-11 20:46:20,121 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]=== [2018-04-11 20:46:20,121 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 [2018-04-11 20:46:20,126 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:20,146 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:20,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:20,152 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:20,158 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,163 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,164 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-04-11 20:46:20,182 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:20,184 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 [2018-04-11 20:46:20,185 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,195 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:20,196 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:20,196 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 [2018-04-11 20:46:20,197 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,202 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,202 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:46:20,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:20,262 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:20,420 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 [2018-04-11 20:46:20,420 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,426 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 [2018-04-11 20:46:20,438 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-04-11 20:46:20,438 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,440 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 [2018-04-11 20:46:20,440 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,443 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,446 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,447 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:21, output treesize:3 [2018-04-11 20:46:20,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:20,474 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:46:20,474 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2018-04-11 20:46:20,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-04-11 20:46:20,474 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-04-11 20:46:20,474 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-04-11 20:46:20,475 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand 18 states. [2018-04-11 20:46:20,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:20,812 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2018-04-11 20:46:20,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 20:46:20,812 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 33 [2018-04-11 20:46:20,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:20,813 INFO L225 Difference]: With dead ends: 85 [2018-04-11 20:46:20,813 INFO L226 Difference]: Without dead ends: 84 [2018-04-11 20:46:20,814 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2018-04-11 20:46:20,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-04-11 20:46:20,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 79. [2018-04-11 20:46:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-04-11 20:46:20,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2018-04-11 20:46:20,822 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 33 [2018-04-11 20:46:20,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:20,823 INFO L459 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2018-04-11 20:46:20,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-04-11 20:46:20,823 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2018-04-11 20:46:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-11 20:46:20,824 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:20,824 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] [2018-04-11 20:46:20,824 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]=== [2018-04-11 20:46:20,824 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 [2018-04-11 20:46:20,831 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:20,849 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:20,894 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:20,895 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 [2018-04-11 20:46:20,898 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 [2018-04-11 20:46:20,899 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,902 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:20,907 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. [2018-04-11 20:46:20,907 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 20:46:20,946 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 [2018-04-11 20:46:20,952 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 [2018-04-11 20:46:20,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:20,956 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:20,974 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 [2018-04-11 20:46:20,998 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 [2018-04-11 20:46:21,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:21,041 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:46:21,041 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-11 20:46:21,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:46:21,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:46:21,042 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-11 20:46:21,043 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 12 states. [2018-04-11 20:46:21,053 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 [2018-04-11 20:46:21,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:21,352 INFO L93 Difference]: Finished difference Result 143 states and 152 transitions. [2018-04-11 20:46:21,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:46:21,352 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34 [2018-04-11 20:46:21,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:21,353 INFO L225 Difference]: With dead ends: 143 [2018-04-11 20:46:21,354 INFO L226 Difference]: Without dead ends: 130 [2018-04-11 20:46:21,362 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-11 20:46:21,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-04-11 20:46:21,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2018-04-11 20:46:21,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-04-11 20:46:21,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 137 transitions. [2018-04-11 20:46:21,376 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 137 transitions. Word has length 34 [2018-04-11 20:46:21,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:21,376 INFO L459 AbstractCegarLoop]: Abstraction has 126 states and 137 transitions. [2018-04-11 20:46:21,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:46:21,376 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 137 transitions. [2018-04-11 20:46:21,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-11 20:46:21,378 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:21,378 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] [2018-04-11 20:46:21,378 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]=== [2018-04-11 20:46:21,378 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 [2018-04-11 20:46:21,388 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:21,408 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:21,432 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:21,433 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 [2018-04-11 20:46:21,435 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:21,436 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 [2018-04-11 20:46:21,437 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:21,441 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:21,445 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. [2018-04-11 20:46:21,446 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 20:46:21,489 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 [2018-04-11 20:46:21,496 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 [2018-04-11 20:46:21,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:21,500 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:21,550 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 [2018-04-11 20:46:21,554 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 [2018-04-11 20:46:21,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:21,605 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:46:21,606 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-11 20:46:21,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:46:21,606 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:46:21,606 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-11 20:46:21,606 INFO L87 Difference]: Start difference. First operand 126 states and 137 transitions. Second operand 12 states. [2018-04-11 20:46:21,617 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 [2018-04-11 20:46:22,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:22,065 INFO L93 Difference]: Finished difference Result 189 states and 203 transitions. [2018-04-11 20:46:22,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:46:22,065 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2018-04-11 20:46:22,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:22,066 INFO L225 Difference]: With dead ends: 189 [2018-04-11 20:46:22,066 INFO L226 Difference]: Without dead ends: 176 [2018-04-11 20:46:22,067 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-11 20:46:22,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-04-11 20:46:22,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 125. [2018-04-11 20:46:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-04-11 20:46:22,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 135 transitions. [2018-04-11 20:46:22,079 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 135 transitions. Word has length 35 [2018-04-11 20:46:22,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:22,079 INFO L459 AbstractCegarLoop]: Abstraction has 125 states and 135 transitions. [2018-04-11 20:46:22,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:46:22,079 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 135 transitions. [2018-04-11 20:46:22,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-04-11 20:46:22,081 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:22,081 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] [2018-04-11 20:46:22,081 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]=== [2018-04-11 20:46:22,081 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 [2018-04-11 20:46:22,093 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:22,116 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:22,152 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:22,153 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 [2018-04-11 20:46:22,156 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 [2018-04-11 20:46:22,156 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:22,169 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:22,174 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. [2018-04-11 20:46:22,174 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 20:46:22,207 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 [2018-04-11 20:46:22,211 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 [2018-04-11 20:46:22,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:22,215 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:22,247 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 [2018-04-11 20:46:22,252 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 [2018-04-11 20:46:22,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:22,289 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:46:22,289 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-11 20:46:22,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:46:22,289 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:46:22,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-11 20:46:22,290 INFO L87 Difference]: Start difference. First operand 125 states and 135 transitions. Second operand 12 states. [2018-04-11 20:46:22,303 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 [2018-04-11 20:46:22,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:22,646 INFO L93 Difference]: Finished difference Result 190 states and 204 transitions. [2018-04-11 20:46:22,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:46:22,647 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2018-04-11 20:46:22,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:22,648 INFO L225 Difference]: With dead ends: 190 [2018-04-11 20:46:22,648 INFO L226 Difference]: Without dead ends: 177 [2018-04-11 20:46:22,648 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-11 20:46:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-04-11 20:46:22,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 127. [2018-04-11 20:46:22,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-04-11 20:46:22,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 138 transitions. [2018-04-11 20:46:22,660 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 138 transitions. Word has length 35 [2018-04-11 20:46:22,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:22,660 INFO L459 AbstractCegarLoop]: Abstraction has 127 states and 138 transitions. [2018-04-11 20:46:22,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:46:22,660 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 138 transitions. [2018-04-11 20:46:22,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-04-11 20:46:22,661 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:22,661 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] [2018-04-11 20:46:22,661 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]=== [2018-04-11 20:46:22,662 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 [2018-04-11 20:46:22,667 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:22,683 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:22,704 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:22,705 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 [2018-04-11 20:46:22,707 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:22,707 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 [2018-04-11 20:46:22,708 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:22,713 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:22,719 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. [2018-04-11 20:46:22,719 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-04-11 20:46:22,741 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 [2018-04-11 20:46:22,745 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 [2018-04-11 20:46:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:22,750 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:22,770 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 [2018-04-11 20:46:22,775 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 [2018-04-11 20:46:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:22,817 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:46:22,817 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2018-04-11 20:46:22,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-04-11 20:46:22,818 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-04-11 20:46:22,818 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=45, Unknown=4, NotChecked=60, Total=132 [2018-04-11 20:46:22,818 INFO L87 Difference]: Start difference. First operand 127 states and 138 transitions. Second operand 12 states. [2018-04-11 20:46:22,826 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 [2018-04-11 20:46:23,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:23,123 INFO L93 Difference]: Finished difference Result 131 states and 138 transitions. [2018-04-11 20:46:23,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-04-11 20:46:23,123 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2018-04-11 20:46:23,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:23,124 INFO L225 Difference]: With dead ends: 131 [2018-04-11 20:46:23,124 INFO L226 Difference]: Without dead ends: 118 [2018-04-11 20:46:23,124 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=125, Unknown=6, NotChecked=130, Total=306 [2018-04-11 20:46:23,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-04-11 20:46:23,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 66. [2018-04-11 20:46:23,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-04-11 20:46:23,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2018-04-11 20:46:23,130 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 36 [2018-04-11 20:46:23,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:23,130 INFO L459 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2018-04-11 20:46:23,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-04-11 20:46:23,130 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2018-04-11 20:46:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-11 20:46:23,131 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:23,131 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:46:23,131 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]=== [2018-04-11 20:46:23,131 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 [2018-04-11 20:46:23,137 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:23,165 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:23,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:23,187 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:23,189 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 [2018-04-11 20:46:23,190 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:23,191 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:23,191 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:3 [2018-04-11 20:46:23,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:23,214 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:46:23,214 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2018-04-11 20:46:23,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 20:46:23,215 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 20:46:23,215 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 20:46:23,215 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand 5 states. [2018-04-11 20:46:23,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:23,248 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2018-04-11 20:46:23,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 20:46:23,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2018-04-11 20:46:23,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:23,249 INFO L225 Difference]: With dead ends: 66 [2018-04-11 20:46:23,249 INFO L226 Difference]: Without dead ends: 65 [2018-04-11 20:46:23,250 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-11 20:46:23,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-04-11 20:46:23,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-04-11 20:46:23,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-11 20:46:23,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2018-04-11 20:46:23,255 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 45 [2018-04-11 20:46:23,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:23,255 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2018-04-11 20:46:23,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 20:46:23,255 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2018-04-11 20:46:23,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-04-11 20:46:23,256 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:23,256 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] [2018-04-11 20:46:23,256 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]=== [2018-04-11 20:46:23,257 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 [2018-04-11 20:46:23,262 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:23,280 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:23,285 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:23,286 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:23,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:23,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:23,295 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:23,295 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:46:23,307 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:23,308 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:23,308 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 [2018-04-11 20:46:23,308 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:23,315 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 [2018-04-11 20:46:23,315 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:23,320 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:23,320 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:46:23,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:23,461 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:23,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:23,889 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-04-11 20:46:23,889 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15, 14] imperfect sequences [] total 28 [2018-04-11 20:46:23,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 20:46:23,889 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 20:46:23,890 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2018-04-11 20:46:23,890 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand 29 states. [2018-04-11 20:46:25,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:25,282 INFO L93 Difference]: Finished difference Result 113 states and 120 transitions. [2018-04-11 20:46:25,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-04-11 20:46:25,282 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 45 [2018-04-11 20:46:25,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:25,283 INFO L225 Difference]: With dead ends: 113 [2018-04-11 20:46:25,283 INFO L226 Difference]: Without dead ends: 112 [2018-04-11 20:46:25,285 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=449, Invalid=2743, Unknown=0, NotChecked=0, Total=3192 [2018-04-11 20:46:25,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-04-11 20:46:25,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 92. [2018-04-11 20:46:25,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-04-11 20:46:25,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2018-04-11 20:46:25,294 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 45 [2018-04-11 20:46:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:25,294 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2018-04-11 20:46:25,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 20:46:25,294 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2018-04-11 20:46:25,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-04-11 20:46:25,294 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:25,295 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] [2018-04-11 20:46:25,295 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]=== [2018-04-11 20:46:25,295 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 [2018-04-11 20:46:25,303 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:25,332 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:25,344 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 [2018-04-11 20:46:25,345 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 [2018-04-11 20:46:25,345 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:25,347 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:25,352 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. [2018-04-11 20:46:25,352 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-04-11 20:46:25,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-04-11 20:46:25,443 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 13 [2018-04-11 20:46:25,444 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:46:25,447 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:46:25,457 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:46:25,458 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-04-11 20:46:25,517 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:25,518 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:25,740 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 [2018-04-11 20:46:25,740 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:25,746 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 [2018-04-11 20:46:25,754 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 [2018-04-11 20:46:25,755 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:25,756 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:25,761 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. [2018-04-11 20:46:25,762 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-04-11 20:46:25,770 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:25,790 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:46:25,790 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-04-11 20:46:25,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-04-11 20:46:25,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-04-11 20:46:25,791 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2018-04-11 20:46:25,791 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand 21 states. [2018-04-11 20:46:26,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:26,300 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2018-04-11 20:46:26,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-04-11 20:46:26,301 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 47 [2018-04-11 20:46:26,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:26,301 INFO L225 Difference]: With dead ends: 100 [2018-04-11 20:46:26,301 INFO L226 Difference]: Without dead ends: 99 [2018-04-11 20:46:26,302 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=164, Invalid=892, Unknown=0, NotChecked=0, Total=1056 [2018-04-11 20:46:26,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-04-11 20:46:26,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 92. [2018-04-11 20:46:26,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-04-11 20:46:26,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2018-04-11 20:46:26,310 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 47 [2018-04-11 20:46:26,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:26,310 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2018-04-11 20:46:26,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-04-11 20:46:26,311 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2018-04-11 20:46:26,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-04-11 20:46:26,311 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:26,311 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] [2018-04-11 20:46:26,311 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]=== [2018-04-11 20:46:26,311 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 [2018-04-11 20:46:26,318 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:26,341 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:26,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:26,358 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:26,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:26,408 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:26,412 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:26,412 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:46:26,426 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:26,428 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 [2018-04-11 20:46:26,428 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:26,437 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:26,437 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:26,438 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 [2018-04-11 20:46:26,438 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:26,443 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:26,443 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:46:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:26,574 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:26,980 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:27,000 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:46:27,000 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 28 [2018-04-11 20:46:27,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-04-11 20:46:27,001 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-04-11 20:46:27,001 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2018-04-11 20:46:27,001 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand 29 states. [2018-04-11 20:46:27,222 WARN L148 SmtUtils]: Spent 150ms on a formula simplification that was a NOOP. DAG size: 44 [2018-04-11 20:46:28,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:28,743 INFO L93 Difference]: Finished difference Result 120 states and 126 transitions. [2018-04-11 20:46:28,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-04-11 20:46:28,743 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 48 [2018-04-11 20:46:28,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:28,743 INFO L225 Difference]: With dead ends: 120 [2018-04-11 20:46:28,743 INFO L226 Difference]: Without dead ends: 119 [2018-04-11 20:46:28,744 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=431, Invalid=2539, Unknown=0, NotChecked=0, Total=2970 [2018-04-11 20:46:28,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-04-11 20:46:28,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 106. [2018-04-11 20:46:28,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-04-11 20:46:28,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 112 transitions. [2018-04-11 20:46:28,754 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 112 transitions. Word has length 48 [2018-04-11 20:46:28,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:28,755 INFO L459 AbstractCegarLoop]: Abstraction has 106 states and 112 transitions. [2018-04-11 20:46:28,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-04-11 20:46:28,755 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2018-04-11 20:46:28,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-04-11 20:46:28,756 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:28,756 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] [2018-04-11 20:46:28,756 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]=== [2018-04-11 20:46:28,756 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 [2018-04-11 20:46:28,765 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:28,788 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:28,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:28,791 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:28,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:28,795 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:28,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:28,799 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:46:28,810 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:28,811 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 [2018-04-11 20:46:28,811 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:28,819 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:28,820 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:28,820 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 [2018-04-11 20:46:28,820 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:28,824 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:28,825 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:46:29,036 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:29,036 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:29,719 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:29,739 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:46:29,740 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2018-04-11 20:46:29,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-04-11 20:46:29,740 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-04-11 20:46:29,740 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1220, Unknown=0, NotChecked=0, Total=1332 [2018-04-11 20:46:29,740 INFO L87 Difference]: Start difference. First operand 106 states and 112 transitions. Second operand 37 states. [2018-04-11 20:46:31,382 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 64 DAG size of output 54 [2018-04-11 20:46:32,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:32,088 INFO L93 Difference]: Finished difference Result 137 states and 144 transitions. [2018-04-11 20:46:32,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-04-11 20:46:32,088 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 54 [2018-04-11 20:46:32,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:32,089 INFO L225 Difference]: With dead ends: 137 [2018-04-11 20:46:32,089 INFO L226 Difference]: Without dead ends: 136 [2018-04-11 20:46:32,091 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=653, Invalid=4749, Unknown=0, NotChecked=0, Total=5402 [2018-04-11 20:46:32,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-04-11 20:46:32,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 127. [2018-04-11 20:46:32,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-04-11 20:46:32,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 133 transitions. [2018-04-11 20:46:32,101 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 133 transitions. Word has length 54 [2018-04-11 20:46:32,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:32,101 INFO L459 AbstractCegarLoop]: Abstraction has 127 states and 133 transitions. [2018-04-11 20:46:32,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-04-11 20:46:32,101 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 133 transitions. [2018-04-11 20:46:32,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-04-11 20:46:32,102 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:32,102 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] [2018-04-11 20:46:32,102 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]=== [2018-04-11 20:46:32,102 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 [2018-04-11 20:46:32,114 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:32,143 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:32,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:32,159 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:32,175 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:32,175 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 20:46:32,231 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:32,258 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:32,259 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 [2018-04-11 20:46:32,259 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:32,282 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 [2018-04-11 20:46:32,282 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:32,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:32,286 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-11 20:46:32,302 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 [2018-04-11 20:46:32,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 20:46:32,304 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:32,305 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:32,308 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:32,308 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-11 20:46:32,428 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 [2018-04-11 20:46:32,430 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 [2018-04-11 20:46:32,431 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:32,435 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:32,441 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:32,442 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-11 20:46:32,504 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 [2018-04-11 20:46:32,510 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 [2018-04-11 20:46:32,511 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:46:32,514 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:46:32,521 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:46:32,521 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-11 20:46:32,603 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:32,603 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:33,531 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 [2018-04-11 20:46:33,544 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 20:46:33,544 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:33,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-04-11 20:46:33,557 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 [2018-04-11 20:46:33,558 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:33,559 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:33,561 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 [2018-04-11 20:46:33,562 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 [2018-04-11 20:46:33,562 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:33,565 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:33,574 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:46:33,591 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:46:33,592 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:55, output treesize:84 [2018-04-11 20:46:33,778 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:33,797 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:46:33,797 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2018-04-11 20:46:33,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-04-11 20:46:33,798 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-04-11 20:46:33,798 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1603, Unknown=0, NotChecked=0, Total=1722 [2018-04-11 20:46:33,798 INFO L87 Difference]: Start difference. First operand 127 states and 133 transitions. Second operand 42 states. [2018-04-11 20:46:35,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:35,503 INFO L93 Difference]: Finished difference Result 162 states and 168 transitions. [2018-04-11 20:46:35,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-04-11 20:46:35,504 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 62 [2018-04-11 20:46:35,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:35,504 INFO L225 Difference]: With dead ends: 162 [2018-04-11 20:46:35,504 INFO L226 Difference]: Without dead ends: 161 [2018-04-11 20:46:35,506 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=405, Invalid=3885, Unknown=0, NotChecked=0, Total=4290 [2018-04-11 20:46:35,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-04-11 20:46:35,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 127. [2018-04-11 20:46:35,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-04-11 20:46:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 132 transitions. [2018-04-11 20:46:35,515 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 132 transitions. Word has length 62 [2018-04-11 20:46:35,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:35,515 INFO L459 AbstractCegarLoop]: Abstraction has 127 states and 132 transitions. [2018-04-11 20:46:35,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-04-11 20:46:35,515 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 132 transitions. [2018-04-11 20:46:35,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-04-11 20:46:35,516 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:35,516 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] [2018-04-11 20:46:35,516 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]=== [2018-04-11 20:46:35,516 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 [2018-04-11 20:46:35,523 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:35,554 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:35,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:35,558 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:35,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:35,564 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:35,568 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:35,568 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:46:35,581 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:35,582 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 [2018-04-11 20:46:35,582 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:35,590 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:35,591 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:35,591 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 [2018-04-11 20:46:35,592 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:35,596 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:35,596 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:46:35,937 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:35,937 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:37,081 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:46:37,081 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 48 [2018-04-11 20:46:37,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-04-11 20:46:37,082 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-04-11 20:46:37,082 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=2178, Unknown=0, NotChecked=0, Total=2352 [2018-04-11 20:46:37,082 INFO L87 Difference]: Start difference. First operand 127 states and 132 transitions. Second operand 49 states. [2018-04-11 20:46:40,223 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 73 DAG size of output 63 [2018-04-11 20:46:41,052 WARN L151 SmtUtils]: Spent 235ms on a formula simplification. DAG size of input: 98 DAG size of output 80 [2018-04-11 20:46:41,340 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 81 DAG size of output 71 [2018-04-11 20:46:43,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:43,130 INFO L93 Difference]: Finished difference Result 191 states and 199 transitions. [2018-04-11 20:46:43,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-04-11 20:46:43,131 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 72 [2018-04-11 20:46:43,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:43,132 INFO L225 Difference]: With dead ends: 191 [2018-04-11 20:46:43,132 INFO L226 Difference]: Without dead ends: 190 [2018-04-11 20:46:43,135 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2749 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=1504, Invalid=12538, Unknown=0, NotChecked=0, Total=14042 [2018-04-11 20:46:43,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-04-11 20:46:43,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 189. [2018-04-11 20:46:43,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-04-11 20:46:43,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 195 transitions. [2018-04-11 20:46:43,151 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 195 transitions. Word has length 72 [2018-04-11 20:46:43,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:43,151 INFO L459 AbstractCegarLoop]: Abstraction has 189 states and 195 transitions. [2018-04-11 20:46:43,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-04-11 20:46:43,152 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 195 transitions. [2018-04-11 20:46:43,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-04-11 20:46:43,152 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:43,152 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] [2018-04-11 20:46:43,152 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]=== [2018-04-11 20:46:43,153 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 [2018-04-11 20:46:43,158 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:43,187 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:43,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:43,190 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:43,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:43,196 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:43,200 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:43,200 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:46:43,210 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:43,211 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 [2018-04-11 20:46:43,212 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:43,219 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:43,219 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:43,220 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 [2018-04-11 20:46:43,220 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:43,224 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:43,224 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:46:43,499 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:43,499 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:44,279 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:44,299 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:46:44,299 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21] total 42 [2018-04-11 20:46:44,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-04-11 20:46:44,299 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-04-11 20:46:44,300 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1661, Unknown=0, NotChecked=0, Total=1806 [2018-04-11 20:46:44,300 INFO L87 Difference]: Start difference. First operand 189 states and 195 transitions. Second operand 43 states. [2018-04-11 20:46:46,866 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 68 DAG size of output 60 [2018-04-11 20:46:47,253 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 73 DAG size of output 71 [2018-04-11 20:46:49,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:49,102 INFO L93 Difference]: Finished difference Result 290 states and 301 transitions. [2018-04-11 20:46:49,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-04-11 20:46:49,102 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 75 [2018-04-11 20:46:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:49,104 INFO L225 Difference]: With dead ends: 290 [2018-04-11 20:46:49,104 INFO L226 Difference]: Without dead ends: 289 [2018-04-11 20:46:49,107 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2339 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1316, Invalid=10026, Unknown=0, NotChecked=0, Total=11342 [2018-04-11 20:46:49,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2018-04-11 20:46:49,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 238. [2018-04-11 20:46:49,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-04-11 20:46:49,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 254 transitions. [2018-04-11 20:46:49,127 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 254 transitions. Word has length 75 [2018-04-11 20:46:49,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:49,127 INFO L459 AbstractCegarLoop]: Abstraction has 238 states and 254 transitions. [2018-04-11 20:46:49,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-04-11 20:46:49,127 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 254 transitions. [2018-04-11 20:46:49,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-04-11 20:46:49,129 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:49,129 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] [2018-04-11 20:46:49,129 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]=== [2018-04-11 20:46:49,129 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 [2018-04-11 20:46:49,137 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:49,163 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:49,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:49,166 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,167 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,167 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-04-11 20:46:49,173 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:49,173 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,178 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:49,179 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:49,179 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 [2018-04-11 20:46:49,179 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,183 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2018-04-11 20:46:49,196 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 [2018-04-11 20:46:49,198 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 20:46:49,198 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,199 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,202 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,202 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2018-04-11 20:46:49,343 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 [2018-04-11 20:46:49,345 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 [2018-04-11 20:46:49,345 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,349 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,353 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,354 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2018-04-11 20:46:49,430 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 [2018-04-11 20:46:49,432 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 [2018-04-11 20:46:49,432 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,436 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,441 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:49,441 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-04-11 20:46:49,499 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 [2018-04-11 20:46:49,505 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 [2018-04-11 20:46:49,505 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-04-11 20:46:49,508 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:46:49,513 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-04-11 20:46:49,513 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-04-11 20:46:49,595 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:49,595 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:50,865 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 [2018-04-11 20:46:50,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-04-11 20:46:50,876 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:50,886 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 [2018-04-11 20:46:50,888 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 [2018-04-11 20:46:50,888 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:50,891 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:50,897 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 [2018-04-11 20:46:50,899 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 36 [2018-04-11 20:46:50,917 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 14 treesize of output 14 [2018-04-11 20:46:50,917 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-04-11 20:46:50,919 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 13 treesize of output 6 [2018-04-11 20:46:50,919 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:50,931 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-04-11 20:46:50,968 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 28 treesize of output 23 [2018-04-11 20:46:50,968 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:50,970 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 30 treesize of output 25 [2018-04-11 20:46:50,970 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:50,971 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 29 treesize of output 24 [2018-04-11 20:46:50,972 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:51,014 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 [2018-04-11 20:46:51,087 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 [2018-04-11 20:46:51,088 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 3 xjuncts. [2018-04-11 20:46:51,097 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 [2018-04-11 20:46:51,098 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 3 xjuncts. [2018-04-11 20:46:51,167 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 32 treesize of output 28 [2018-04-11 20:46:51,167 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-04-11 20:46:51,212 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 [2018-04-11 20:46:51,213 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-04-11 20:46:51,218 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 [2018-04-11 20:46:51,219 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-04-11 20:46:51,241 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-11 20:46:51,260 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-04-11 20:46:51,262 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 [2018-04-11 20:46:51,271 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 [2018-04-11 20:46:51,294 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 [2018-04-11 20:46:51,294 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-04-11 20:46:51,305 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 [2018-04-11 20:46:51,306 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 3 xjuncts. [2018-04-11 20:46:51,316 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 [2018-04-11 20:46:51,317 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 3 xjuncts. [2018-04-11 20:46:51,359 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 [2018-04-11 20:46:51,359 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:51,364 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 [2018-04-11 20:46:51,365 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-04-11 20:46:51,392 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:46:51,411 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:46:51,437 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-04-11 20:46:51,466 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-04-11 20:46:51,466 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 6 variables, input treesize:60, output treesize:84 [2018-04-11 20:46:51,658 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:51,678 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:46:51,678 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 51 [2018-04-11 20:46:51,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-04-11 20:46:51,678 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-04-11 20:46:51,679 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=2474, Unknown=0, NotChecked=0, Total=2652 [2018-04-11 20:46:51,679 INFO L87 Difference]: Start difference. First operand 238 states and 254 transitions. Second operand 52 states. [2018-04-11 20:46:54,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:46:54,730 INFO L93 Difference]: Finished difference Result 274 states and 290 transitions. [2018-04-11 20:46:54,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-04-11 20:46:54,731 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 77 [2018-04-11 20:46:54,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:46:54,733 INFO L225 Difference]: With dead ends: 274 [2018-04-11 20:46:54,733 INFO L226 Difference]: Without dead ends: 273 [2018-04-11 20:46:54,735 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1685 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1402, Invalid=7528, Unknown=0, NotChecked=0, Total=8930 [2018-04-11 20:46:54,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2018-04-11 20:46:54,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 237. [2018-04-11 20:46:54,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-04-11 20:46:54,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 250 transitions. [2018-04-11 20:46:54,752 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 250 transitions. Word has length 77 [2018-04-11 20:46:54,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:46:54,753 INFO L459 AbstractCegarLoop]: Abstraction has 237 states and 250 transitions. [2018-04-11 20:46:54,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-04-11 20:46:54,753 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 250 transitions. [2018-04-11 20:46:54,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 20:46:54,753 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:46:54,753 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] [2018-04-11 20:46:54,754 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]=== [2018-04-11 20:46:54,754 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 [2018-04-11 20:46:54,759 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:46:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:46:54,788 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:46:54,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:54,791 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:54,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:46:54,797 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:54,800 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:54,801 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:46:54,812 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:54,813 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 [2018-04-11 20:46:54,814 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:54,821 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:54,821 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:46:54,822 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 [2018-04-11 20:46:54,822 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:46:54,826 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:46:54,826 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:46:55,200 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:55,200 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:46:56,125 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:46:56,144 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:46:56,145 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 21] total 46 [2018-04-11 20:46:56,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-04-11 20:46:56,145 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-04-11 20:46:56,145 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=2000, Unknown=0, NotChecked=0, Total=2162 [2018-04-11 20:46:56,145 INFO L87 Difference]: Start difference. First operand 237 states and 250 transitions. Second operand 47 states. [2018-04-11 20:46:57,008 WARN L151 SmtUtils]: Spent 113ms on a formula simplification. DAG size of input: 79 DAG size of output 72 [2018-04-11 20:46:57,194 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 81 DAG size of output 72 [2018-04-11 20:46:57,991 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 74 DAG size of output 66 [2018-04-11 20:46:59,074 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 70 DAG size of output 62 [2018-04-11 20:46:59,809 WARN L151 SmtUtils]: Spent 225ms on a formula simplification. DAG size of input: 94 DAG size of output 79 [2018-04-11 20:47:00,110 WARN L151 SmtUtils]: Spent 177ms on a formula simplification. DAG size of input: 87 DAG size of output 78 [2018-04-11 20:47:01,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:47:01,997 INFO L93 Difference]: Finished difference Result 285 states and 298 transitions. [2018-04-11 20:47:01,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-04-11 20:47:01,997 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 78 [2018-04-11 20:47:01,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:47:01,999 INFO L225 Difference]: With dead ends: 285 [2018-04-11 20:47:01,999 INFO L226 Difference]: Without dead ends: 284 [2018-04-11 20:47:02,000 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1849 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1327, Invalid=9385, Unknown=0, NotChecked=0, Total=10712 [2018-04-11 20:47:02,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2018-04-11 20:47:02,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 251. [2018-04-11 20:47:02,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2018-04-11 20:47:02,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 261 transitions. [2018-04-11 20:47:02,020 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 261 transitions. Word has length 78 [2018-04-11 20:47:02,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:47:02,020 INFO L459 AbstractCegarLoop]: Abstraction has 251 states and 261 transitions. [2018-04-11 20:47:02,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-04-11 20:47:02,020 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 261 transitions. [2018-04-11 20:47:02,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-04-11 20:47:02,021 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:47:02,021 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] [2018-04-11 20:47:02,021 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]=== [2018-04-11 20:47:02,021 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 [2018-04-11 20:47:02,030 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:47:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:47:02,057 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:47:02,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:47:02,060 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:02,068 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:47:02,068 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:02,071 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:47:02,071 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:47:02,082 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:02,083 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 [2018-04-11 20:47:02,083 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:02,091 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:02,092 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:02,092 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 [2018-04-11 20:47:02,092 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:02,096 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:47:02,097 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:47:02,547 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:47:02,547 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:47:03,708 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:47:03,728 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:47:03,728 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 24] total 52 [2018-04-11 20:47:03,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-04-11 20:47:03,729 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-04-11 20:47:03,729 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=2565, Unknown=0, NotChecked=0, Total=2756 [2018-04-11 20:47:03,729 INFO L87 Difference]: Start difference. First operand 251 states and 261 transitions. Second operand 53 states. [2018-04-11 20:47:08,637 WARN L151 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 81 DAG size of output 71 [2018-04-11 20:47:08,953 WARN L151 SmtUtils]: Spent 104ms on a formula simplification. DAG size of input: 78 DAG size of output 68 [2018-04-11 20:47:09,596 WARN L151 SmtUtils]: Spent 249ms on a formula simplification. DAG size of input: 100 DAG size of output 84 [2018-04-11 20:47:09,870 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 73 DAG size of output 67 [2018-04-11 20:47:10,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:47:10,579 INFO L93 Difference]: Finished difference Result 301 states and 311 transitions. [2018-04-11 20:47:10,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-04-11 20:47:10,580 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 78 [2018-04-11 20:47:10,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:47:10,582 INFO L225 Difference]: With dead ends: 301 [2018-04-11 20:47:10,582 INFO L226 Difference]: Without dead ends: 300 [2018-04-11 20:47:10,583 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2552 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=1482, Invalid=13038, Unknown=0, NotChecked=0, Total=14520 [2018-04-11 20:47:10,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-04-11 20:47:10,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 245. [2018-04-11 20:47:10,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2018-04-11 20:47:10,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 255 transitions. [2018-04-11 20:47:10,612 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 255 transitions. Word has length 78 [2018-04-11 20:47:10,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:47:10,612 INFO L459 AbstractCegarLoop]: Abstraction has 245 states and 255 transitions. [2018-04-11 20:47:10,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-04-11 20:47:10,612 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 255 transitions. [2018-04-11 20:47:10,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-04-11 20:47:10,613 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:47:10,613 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] [2018-04-11 20:47:10,613 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]=== [2018-04-11 20:47:10,613 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 [2018-04-11 20:47:10,619 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:47:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:47:10,658 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:47:10,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:47:10,691 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:10,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:47:10,696 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:10,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:47:10,700 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:47:10,720 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:10,727 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 [2018-04-11 20:47:10,727 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:10,743 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:10,744 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:10,744 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 [2018-04-11 20:47:10,744 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:10,749 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:47:10,750 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:47:11,349 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:47:11,350 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:47:12,548 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:47:12,567 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:47:12,568 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 24] total 53 [2018-04-11 20:47:12,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-04-11 20:47:12,568 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-04-11 20:47:12,568 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=2664, Unknown=0, NotChecked=0, Total=2862 [2018-04-11 20:47:12,568 INFO L87 Difference]: Start difference. First operand 245 states and 255 transitions. Second operand 54 states. [2018-04-11 20:47:15,933 WARN L151 SmtUtils]: Spent 125ms on a formula simplification. DAG size of input: 84 DAG size of output 82 [2018-04-11 20:47:16,345 WARN L151 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 84 DAG size of output 82 [2018-04-11 20:47:16,797 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 81 DAG size of output 71 [2018-04-11 20:47:17,173 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 78 DAG size of output 68 [2018-04-11 20:47:17,608 WARN L151 SmtUtils]: Spent 175ms on a formula simplification. DAG size of input: 94 DAG size of output 80 [2018-04-11 20:47:18,124 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 78 DAG size of output 76 [2018-04-11 20:47:19,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:47:19,231 INFO L93 Difference]: Finished difference Result 319 states and 330 transitions. [2018-04-11 20:47:19,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-04-11 20:47:19,231 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 84 [2018-04-11 20:47:19,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:47:19,233 INFO L225 Difference]: With dead ends: 319 [2018-04-11 20:47:19,233 INFO L226 Difference]: Without dead ends: 318 [2018-04-11 20:47:19,234 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2223 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=1390, Invalid=12182, Unknown=0, NotChecked=0, Total=13572 [2018-04-11 20:47:19,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2018-04-11 20:47:19,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 228. [2018-04-11 20:47:19,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-04-11 20:47:19,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 237 transitions. [2018-04-11 20:47:19,251 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 237 transitions. Word has length 84 [2018-04-11 20:47:19,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:47:19,251 INFO L459 AbstractCegarLoop]: Abstraction has 228 states and 237 transitions. [2018-04-11 20:47:19,251 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-04-11 20:47:19,251 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 237 transitions. [2018-04-11 20:47:19,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-04-11 20:47:19,252 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:47:19,252 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] [2018-04-11 20:47:19,252 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]=== [2018-04-11 20:47:19,252 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 [2018-04-11 20:47:19,266 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:47:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:47:19,306 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:47:19,309 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 [2018-04-11 20:47:19,309 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:19,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:47:19,326 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:19,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:47:19,331 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:47:19,343 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:19,344 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 [2018-04-11 20:47:19,344 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:19,353 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:19,353 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:19,354 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 [2018-04-11 20:47:19,354 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:19,359 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:47:19,359 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:47:19,933 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:47:19,934 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:47:21,562 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:47:21,583 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:47:21,583 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 60 [2018-04-11 20:47:21,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-04-11 20:47:21,584 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-04-11 20:47:21,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=3410, Unknown=0, NotChecked=0, Total=3660 [2018-04-11 20:47:21,584 INFO L87 Difference]: Start difference. First operand 228 states and 237 transitions. Second operand 61 states. [2018-04-11 20:47:23,154 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 76 DAG size of output 67 [2018-04-11 20:47:26,514 WARN L151 SmtUtils]: Spent 125ms on a formula simplification. DAG size of input: 76 DAG size of output 74 [2018-04-11 20:47:26,910 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 76 DAG size of output 74 [2018-04-11 20:47:29,468 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 91 DAG size of output 80 [2018-04-11 20:47:29,830 WARN L151 SmtUtils]: Spent 136ms on a formula simplification. DAG size of input: 95 DAG size of output 81 [2018-04-11 20:47:30,283 WARN L151 SmtUtils]: Spent 129ms on a formula simplification. DAG size of input: 92 DAG size of output 78 [2018-04-11 20:47:30,975 WARN L151 SmtUtils]: Spent 263ms on a formula simplification. DAG size of input: 120 DAG size of output 98 [2018-04-11 20:47:31,305 WARN L151 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 82 DAG size of output 72 [2018-04-11 20:47:32,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:47:32,203 INFO L93 Difference]: Finished difference Result 392 states and 404 transitions. [2018-04-11 20:47:32,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-04-11 20:47:32,203 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 102 [2018-04-11 20:47:32,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:47:32,205 INFO L225 Difference]: With dead ends: 392 [2018-04-11 20:47:32,205 INFO L226 Difference]: Without dead ends: 391 [2018-04-11 20:47:32,207 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5499 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=2435, Invalid=23005, Unknown=0, NotChecked=0, Total=25440 [2018-04-11 20:47:32,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2018-04-11 20:47:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 254. [2018-04-11 20:47:32,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-04-11 20:47:32,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 264 transitions. [2018-04-11 20:47:32,243 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 264 transitions. Word has length 102 [2018-04-11 20:47:32,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:47:32,243 INFO L459 AbstractCegarLoop]: Abstraction has 254 states and 264 transitions. [2018-04-11 20:47:32,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-04-11 20:47:32,243 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 264 transitions. [2018-04-11 20:47:32,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-04-11 20:47:32,244 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:47:32,244 INFO L355 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 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] [2018-04-11 20:47:32,244 INFO L408 AbstractCegarLoop]: === Iteration 24 === [__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]=== [2018-04-11 20:47:32,244 INFO L82 PathProgramCache]: Analyzing trace with hash 736328572, now seen corresponding path program 4 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:47:32,250 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:47:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:47:32,294 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:47:32,296 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:47:32,296 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:32,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:47:32,301 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:32,304 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:47:32,304 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:47:32,315 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:32,316 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:32,316 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 [2018-04-11 20:47:32,316 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:32,322 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 [2018-04-11 20:47:32,322 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:32,326 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:47:32,326 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:47:32,902 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:47:32,902 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:47:34,899 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:47:34,919 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:47:34,919 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33] total 66 [2018-04-11 20:47:34,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-04-11 20:47:34,919 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-04-11 20:47:34,920 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=4119, Unknown=0, NotChecked=0, Total=4422 [2018-04-11 20:47:34,920 INFO L87 Difference]: Start difference. First operand 254 states and 264 transitions. Second operand 67 states. [2018-04-11 20:47:36,310 WARN L151 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 87 DAG size of output 75 [2018-04-11 20:47:36,725 WARN L151 SmtUtils]: Spent 211ms on a formula simplification. DAG size of input: 110 DAG size of output 93 [2018-04-11 20:47:37,253 WARN L151 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 77 DAG size of output 71 [2018-04-11 20:47:37,923 WARN L151 SmtUtils]: Spent 154ms on a formula simplification. DAG size of input: 97 DAG size of output 79 [2018-04-11 20:47:38,224 WARN L151 SmtUtils]: Spent 170ms on a formula simplification. DAG size of input: 93 DAG size of output 80 [2018-04-11 20:47:39,825 WARN L151 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 80 DAG size of output 66 [2018-04-11 20:47:40,051 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 76 DAG size of output 67 [2018-04-11 20:47:46,465 WARN L151 SmtUtils]: Spent 123ms on a formula simplification. DAG size of input: 102 DAG size of output 89 [2018-04-11 20:47:46,884 WARN L151 SmtUtils]: Spent 164ms on a formula simplification. DAG size of input: 106 DAG size of output 90 [2018-04-11 20:47:47,299 WARN L151 SmtUtils]: Spent 154ms on a formula simplification. DAG size of input: 103 DAG size of output 87 [2018-04-11 20:47:48,685 WARN L151 SmtUtils]: Spent 399ms on a formula simplification. DAG size of input: 143 DAG size of output 115 [2018-04-11 20:47:49,167 WARN L151 SmtUtils]: Spent 257ms on a formula simplification. DAG size of input: 116 DAG size of output 98 [2018-04-11 20:47:49,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:47:49,580 INFO L93 Difference]: Finished difference Result 445 states and 460 transitions. [2018-04-11 20:47:49,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2018-04-11 20:47:49,580 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 105 [2018-04-11 20:47:49,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:47:49,582 INFO L225 Difference]: With dead ends: 445 [2018-04-11 20:47:49,582 INFO L226 Difference]: Without dead ends: 444 [2018-04-11 20:47:49,582 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7930 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=3288, Invalid=31122, Unknown=0, NotChecked=0, Total=34410 [2018-04-11 20:47:49,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2018-04-11 20:47:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 308. [2018-04-11 20:47:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2018-04-11 20:47:49,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 318 transitions. [2018-04-11 20:47:49,615 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 318 transitions. Word has length 105 [2018-04-11 20:47:49,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:47:49,615 INFO L459 AbstractCegarLoop]: Abstraction has 308 states and 318 transitions. [2018-04-11 20:47:49,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-04-11 20:47:49,616 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 318 transitions. [2018-04-11 20:47:49,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-04-11 20:47:49,616 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:47:49,616 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:47:49,616 INFO L408 AbstractCegarLoop]: === Iteration 25 === [__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]=== [2018-04-11 20:47:49,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1642568246, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:47:49,623 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:47:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:47:49,674 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:47:49,676 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:47:49,677 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:49,681 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:47:49,681 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:49,685 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:47:49,685 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:47:49,695 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:49,696 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:47:49,696 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 [2018-04-11 20:47:49,696 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:49,702 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 [2018-04-11 20:47:49,703 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:47:49,706 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:47:49,707 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:47:50,375 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:47:50,375 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:47:52,713 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:47:52,733 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:47:52,733 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 36] total 72 [2018-04-11 20:47:52,733 INFO L442 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-04-11 20:47:52,733 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-04-11 20:47:52,733 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=370, Invalid=4886, Unknown=0, NotChecked=0, Total=5256 [2018-04-11 20:47:52,734 INFO L87 Difference]: Start difference. First operand 308 states and 318 transitions. Second operand 73 states. [2018-04-11 20:48:01,119 WARN L151 SmtUtils]: Spent 133ms on a formula simplification. DAG size of input: 113 DAG size of output 98 [2018-04-11 20:48:01,702 WARN L151 SmtUtils]: Spent 185ms on a formula simplification. DAG size of input: 117 DAG size of output 99 [2018-04-11 20:48:02,187 WARN L151 SmtUtils]: Spent 188ms on a formula simplification. DAG size of input: 114 DAG size of output 96 [2018-04-11 20:48:03,253 WARN L151 SmtUtils]: Spent 542ms on a formula simplification. DAG size of input: 166 DAG size of output 132 [2018-04-11 20:48:03,901 WARN L151 SmtUtils]: Spent 381ms on a formula simplification. DAG size of input: 149 DAG size of output 123 [2018-04-11 20:48:04,354 WARN L151 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 95 DAG size of output 85 [2018-04-11 20:48:04,628 WARN L151 SmtUtils]: Spent 136ms on a formula simplification. DAG size of input: 99 DAG size of output 89 [2018-04-11 20:48:05,032 WARN L151 SmtUtils]: Spent 140ms on a formula simplification. DAG size of input: 94 DAG size of output 86 [2018-04-11 20:48:05,389 WARN L151 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 89 DAG size of output 76 [2018-04-11 20:48:06,021 WARN L151 SmtUtils]: Spent 243ms on a formula simplification. DAG size of input: 131 DAG size of output 105 [2018-04-11 20:48:06,477 WARN L151 SmtUtils]: Spent 250ms on a formula simplification. DAG size of input: 127 DAG size of output 106 [2018-04-11 20:48:06,923 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 84 DAG size of output 76 [2018-04-11 20:48:07,238 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 88 DAG size of output 80 [2018-04-11 20:48:07,580 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 83 DAG size of output 77 [2018-04-11 20:48:08,230 WARN L151 SmtUtils]: Spent 210ms on a formula simplification. DAG size of input: 114 DAG size of output 92 [2018-04-11 20:48:08,631 WARN L151 SmtUtils]: Spent 212ms on a formula simplification. DAG size of input: 110 DAG size of output 93 [2018-04-11 20:48:09,129 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 77 DAG size of output 71 [2018-04-11 20:48:09,883 WARN L151 SmtUtils]: Spent 173ms on a formula simplification. DAG size of input: 97 DAG size of output 79 [2018-04-11 20:48:10,192 WARN L151 SmtUtils]: Spent 151ms on a formula simplification. DAG size of input: 93 DAG size of output 80 [2018-04-11 20:48:11,249 WARN L151 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 80 DAG size of output 66 [2018-04-11 20:48:11,498 WARN L151 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 76 DAG size of output 67 [2018-04-11 20:48:12,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:48:12,986 INFO L93 Difference]: Finished difference Result 481 states and 498 transitions. [2018-04-11 20:48:12,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2018-04-11 20:48:12,986 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 108 [2018-04-11 20:48:12,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:48:12,988 INFO L225 Difference]: With dead ends: 481 [2018-04-11 20:48:12,988 INFO L226 Difference]: Without dead ends: 480 [2018-04-11 20:48:12,989 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10065 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=4320, Invalid=39990, Unknown=0, NotChecked=0, Total=44310 [2018-04-11 20:48:12,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2018-04-11 20:48:13,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 347. [2018-04-11 20:48:13,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2018-04-11 20:48:13,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 357 transitions. [2018-04-11 20:48:13,034 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 357 transitions. Word has length 108 [2018-04-11 20:48:13,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:48:13,034 INFO L459 AbstractCegarLoop]: Abstraction has 347 states and 357 transitions. [2018-04-11 20:48:13,034 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-04-11 20:48:13,034 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 357 transitions. [2018-04-11 20:48:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-04-11 20:48:13,035 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:48:13,035 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2018-04-11 20:48:13,035 INFO L408 AbstractCegarLoop]: === Iteration 26 === [__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]=== [2018-04-11 20:48:13,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1698580921, now seen corresponding path program 5 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:48:13,044 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:48:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:48:13,089 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:48:13,098 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:48:13,099 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:13,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:48:13,105 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:13,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:13,110 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:48:13,124 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:48:13,125 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 [2018-04-11 20:48:13,125 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:13,134 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:48:13,135 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:48:13,135 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 [2018-04-11 20:48:13,135 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:13,140 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:13,140 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:48:13,775 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:48:13,775 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:48:15,745 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:48:15,764 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:48:15,765 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33] total 66 [2018-04-11 20:48:15,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-04-11 20:48:15,765 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-04-11 20:48:15,765 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=4122, Unknown=0, NotChecked=0, Total=4422 [2018-04-11 20:48:15,766 INFO L87 Difference]: Start difference. First operand 347 states and 357 transitions. Second operand 67 states. [2018-04-11 20:48:22,144 WARN L151 SmtUtils]: Spent 219ms on a formula simplification. DAG size of input: 110 DAG size of output 100 [2018-04-11 20:48:22,681 WARN L151 SmtUtils]: Spent 191ms on a formula simplification. DAG size of input: 110 DAG size of output 100 [2018-04-11 20:48:24,080 WARN L151 SmtUtils]: Spent 187ms on a formula simplification. DAG size of input: 104 DAG size of output 94 [2018-04-11 20:48:24,310 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 86 DAG size of output 80 [2018-04-11 20:48:24,538 WARN L151 SmtUtils]: Spent 124ms on a formula simplification. DAG size of input: 102 DAG size of output 89 [2018-04-11 20:48:24,817 WARN L151 SmtUtils]: Spent 169ms on a formula simplification. DAG size of input: 94 DAG size of output 86 [2018-04-11 20:48:25,235 WARN L151 SmtUtils]: Spent 162ms on a formula simplification. DAG size of input: 106 DAG size of output 90 [2018-04-11 20:48:25,659 WARN L151 SmtUtils]: Spent 160ms on a formula simplification. DAG size of input: 103 DAG size of output 87 [2018-04-11 20:48:26,340 WARN L151 SmtUtils]: Spent 316ms on a formula simplification. DAG size of input: 125 DAG size of output 103 [2018-04-11 20:48:26,587 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 65 DAG size of output 59 [2018-04-11 20:48:27,544 WARN L151 SmtUtils]: Spent 150ms on a formula simplification. DAG size of input: 87 DAG size of output 81 [2018-04-11 20:48:27,757 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 75 DAG size of output 71 [2018-04-11 20:48:27,976 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 77 DAG size of output 73 [2018-04-11 20:48:28,290 WARN L151 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 89 DAG size of output 85 [2018-04-11 20:48:28,855 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 70 DAG size of output 68 [2018-04-11 20:48:30,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:48:30,304 INFO L93 Difference]: Finished difference Result 584 states and 600 transitions. [2018-04-11 20:48:30,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2018-04-11 20:48:30,304 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 123 [2018-04-11 20:48:30,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:48:30,306 INFO L225 Difference]: With dead ends: 584 [2018-04-11 20:48:30,306 INFO L226 Difference]: Without dead ends: 583 [2018-04-11 20:48:30,307 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7149 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=3033, Invalid=29187, Unknown=0, NotChecked=0, Total=32220 [2018-04-11 20:48:30,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2018-04-11 20:48:30,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 407. [2018-04-11 20:48:30,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2018-04-11 20:48:30,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 425 transitions. [2018-04-11 20:48:30,355 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 425 transitions. Word has length 123 [2018-04-11 20:48:30,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:48:30,356 INFO L459 AbstractCegarLoop]: Abstraction has 407 states and 425 transitions. [2018-04-11 20:48:30,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-04-11 20:48:30,356 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 425 transitions. [2018-04-11 20:48:30,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-04-11 20:48:30,357 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:48:30,358 INFO L355 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2018-04-11 20:48:30,358 INFO L408 AbstractCegarLoop]: === Iteration 27 === [__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]=== [2018-04-11 20:48:30,358 INFO L82 PathProgramCache]: Analyzing trace with hash 234325441, now seen corresponding path program 6 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:48:30,364 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:48:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:48:30,412 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:48:30,415 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:48:30,415 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:30,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:48:30,425 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:30,428 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:30,429 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:48:30,441 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:48:30,442 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 [2018-04-11 20:48:30,442 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:30,449 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:48:30,450 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:48:30,450 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 [2018-04-11 20:48:30,451 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:30,455 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:30,455 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:48:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:48:31,147 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:48:33,473 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:48:33,493 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:48:33,493 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 36] total 72 [2018-04-11 20:48:33,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-04-11 20:48:33,494 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-04-11 20:48:33,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=4907, Unknown=0, NotChecked=0, Total=5256 [2018-04-11 20:48:33,494 INFO L87 Difference]: Start difference. First operand 407 states and 425 transitions. Second operand 73 states. [2018-04-11 20:48:35,350 WARN L151 SmtUtils]: Spent 163ms on a formula simplification. DAG size of input: 93 DAG size of output 80 [2018-04-11 20:48:36,432 WARN L151 SmtUtils]: Spent 149ms on a formula simplification. DAG size of input: 80 DAG size of output 66 [2018-04-11 20:48:36,675 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 76 DAG size of output 67 [2018-04-11 20:48:37,641 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 76 DAG size of output 66 [2018-04-11 20:48:41,591 WARN L151 SmtUtils]: Spent 184ms on a formula simplification. DAG size of input: 93 DAG size of output 87 [2018-04-11 20:48:42,118 WARN L151 SmtUtils]: Spent 171ms on a formula simplification. DAG size of input: 93 DAG size of output 87 [2018-04-11 20:48:43,508 WARN L151 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 87 DAG size of output 81 [2018-04-11 20:48:44,055 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 77 DAG size of output 73 [2018-04-11 20:48:47,272 WARN L151 SmtUtils]: Spent 149ms on a formula simplification. DAG size of input: 113 DAG size of output 98 [2018-04-11 20:48:47,796 WARN L151 SmtUtils]: Spent 222ms on a formula simplification. DAG size of input: 117 DAG size of output 99 [2018-04-11 20:48:48,314 WARN L151 SmtUtils]: Spent 205ms on a formula simplification. DAG size of input: 114 DAG size of output 96 [2018-04-11 20:48:49,383 WARN L151 SmtUtils]: Spent 454ms on a formula simplification. DAG size of input: 148 DAG size of output 120 [2018-04-11 20:48:49,879 WARN L151 SmtUtils]: Spent 211ms on a formula simplification. DAG size of input: 99 DAG size of output 85 [2018-04-11 20:48:51,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:48:51,343 INFO L93 Difference]: Finished difference Result 672 states and 692 transitions. [2018-04-11 20:48:51,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2018-04-11 20:48:51,343 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 126 [2018-04-11 20:48:51,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:48:51,345 INFO L225 Difference]: With dead ends: 672 [2018-04-11 20:48:51,346 INFO L226 Difference]: Without dead ends: 671 [2018-04-11 20:48:51,348 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9537 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=3732, Invalid=37680, Unknown=0, NotChecked=0, Total=41412 [2018-04-11 20:48:51,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2018-04-11 20:48:51,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 398. [2018-04-11 20:48:51,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2018-04-11 20:48:51,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 418 transitions. [2018-04-11 20:48:51,411 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 418 transitions. Word has length 126 [2018-04-11 20:48:51,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:48:51,412 INFO L459 AbstractCegarLoop]: Abstraction has 398 states and 418 transitions. [2018-04-11 20:48:51,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-04-11 20:48:51,412 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 418 transitions. [2018-04-11 20:48:51,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-04-11 20:48:51,412 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:48:51,412 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:48:51,413 INFO L408 AbstractCegarLoop]: === Iteration 28 === [__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]=== [2018-04-11 20:48:51,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1477629401, now seen corresponding path program 2 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:48:51,421 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:48:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:48:51,483 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:48:51,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:48:51,498 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:51,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:48:51,512 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:51,515 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:51,516 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:48:51,541 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:48:51,542 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 [2018-04-11 20:48:51,542 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:51,550 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:48:51,551 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:48:51,552 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 [2018-04-11 20:48:51,552 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:48:51,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:48:51,557 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:48:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:48:52,228 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:48:54,286 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:48:54,306 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:48:54,306 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33] total 66 [2018-04-11 20:48:54,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-04-11 20:48:54,307 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-04-11 20:48:54,307 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=4097, Unknown=0, NotChecked=0, Total=4422 [2018-04-11 20:48:54,307 INFO L87 Difference]: Start difference. First operand 398 states and 418 transitions. Second operand 67 states. [2018-04-11 20:49:00,342 WARN L151 SmtUtils]: Spent 133ms on a formula simplification. DAG size of input: 97 DAG size of output 89 [2018-04-11 20:49:00,632 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 102 DAG size of output 89 [2018-04-11 20:49:00,978 WARN L151 SmtUtils]: Spent 172ms on a formula simplification. DAG size of input: 106 DAG size of output 90 [2018-04-11 20:49:01,302 WARN L151 SmtUtils]: Spent 161ms on a formula simplification. DAG size of input: 103 DAG size of output 87 [2018-04-11 20:49:01,747 WARN L151 SmtUtils]: Spent 289ms on a formula simplification. DAG size of input: 142 DAG size of output 126 [2018-04-11 20:49:02,157 WARN L151 SmtUtils]: Spent 205ms on a formula simplification. DAG size of input: 112 DAG size of output 96 [2018-04-11 20:49:02,669 WARN L151 SmtUtils]: Spent 343ms on a formula simplification. DAG size of input: 141 DAG size of output 125 [2018-04-11 20:49:03,291 WARN L151 SmtUtils]: Spent 336ms on a formula simplification. DAG size of input: 141 DAG size of output 123 [2018-04-11 20:49:03,618 WARN L151 SmtUtils]: Spent 135ms on a formula simplification. DAG size of input: 95 DAG size of output 85 [2018-04-11 20:49:03,842 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 87 DAG size of output 79 [2018-04-11 20:49:04,156 WARN L151 SmtUtils]: Spent 168ms on a formula simplification. DAG size of input: 99 DAG size of output 89 [2018-04-11 20:49:04,429 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 94 DAG size of output 86 [2018-04-11 20:49:04,651 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 89 DAG size of output 76 [2018-04-11 20:49:05,019 WARN L151 SmtUtils]: Spent 227ms on a formula simplification. DAG size of input: 127 DAG size of output 111 [2018-04-11 20:49:05,238 WARN L151 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 95 DAG size of output 82 [2018-04-11 20:49:05,623 WARN L151 SmtUtils]: Spent 244ms on a formula simplification. DAG size of input: 125 DAG size of output 111 [2018-04-11 20:49:06,049 WARN L151 SmtUtils]: Spent 260ms on a formula simplification. DAG size of input: 125 DAG size of output 109 [2018-04-11 20:49:06,467 WARN L151 SmtUtils]: Spent 290ms on a formula simplification. DAG size of input: 135 DAG size of output 121 [2018-04-11 20:49:06,748 WARN L151 SmtUtils]: Spent 118ms on a formula simplification. DAG size of input: 84 DAG size of output 76 [2018-04-11 20:49:07,234 WARN L151 SmtUtils]: Spent 143ms on a formula simplification. DAG size of input: 88 DAG size of output 80 [2018-04-11 20:49:07,543 WARN L151 SmtUtils]: Spent 126ms on a formula simplification. DAG size of input: 83 DAG size of output 77 [2018-04-11 20:49:08,111 WARN L151 SmtUtils]: Spent 207ms on a formula simplification. DAG size of input: 110 DAG size of output 98 [2018-04-11 20:49:08,669 WARN L151 SmtUtils]: Spent 213ms on a formula simplification. DAG size of input: 108 DAG size of output 98 [2018-04-11 20:49:09,047 WARN L151 SmtUtils]: Spent 223ms on a formula simplification. DAG size of input: 108 DAG size of output 96 [2018-04-11 20:49:09,441 WARN L151 SmtUtils]: Spent 251ms on a formula simplification. DAG size of input: 120 DAG size of output 110 [2018-04-11 20:49:10,088 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 77 DAG size of output 71 [2018-04-11 20:49:10,766 WARN L151 SmtUtils]: Spent 143ms on a formula simplification. DAG size of input: 93 DAG size of output 85 [2018-04-11 20:49:11,252 WARN L151 SmtUtils]: Spent 162ms on a formula simplification. DAG size of input: 91 DAG size of output 85 [2018-04-11 20:49:11,550 WARN L151 SmtUtils]: Spent 160ms on a formula simplification. DAG size of input: 91 DAG size of output 83 [2018-04-11 20:49:11,860 WARN L151 SmtUtils]: Spent 177ms on a formula simplification. DAG size of input: 103 DAG size of output 97 [2018-04-11 20:49:12,924 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 76 DAG size of output 72 [2018-04-11 20:49:13,293 WARN L151 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 74 DAG size of output 72 [2018-04-11 20:49:13,537 WARN L151 SmtUtils]: Spent 124ms on a formula simplification. DAG size of input: 74 DAG size of output 70 [2018-04-11 20:49:13,813 WARN L151 SmtUtils]: Spent 145ms on a formula simplification. DAG size of input: 86 DAG size of output 84 [2018-04-11 20:49:16,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:16,498 INFO L93 Difference]: Finished difference Result 576 states and 598 transitions. [2018-04-11 20:49:16,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2018-04-11 20:49:16,498 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 135 [2018-04-11 20:49:16,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:16,500 INFO L225 Difference]: With dead ends: 576 [2018-04-11 20:49:16,500 INFO L226 Difference]: Without dead ends: 575 [2018-04-11 20:49:16,502 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10869 ImplicationChecksByTransitivity, 22.2s TimeCoverageRelationStatistics Valid=4350, Invalid=38292, Unknown=0, NotChecked=0, Total=42642 [2018-04-11 20:49:16,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2018-04-11 20:49:16,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 453. [2018-04-11 20:49:16,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2018-04-11 20:49:16,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 479 transitions. [2018-04-11 20:49:16,562 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 479 transitions. Word has length 135 [2018-04-11 20:49:16,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:16,563 INFO L459 AbstractCegarLoop]: Abstraction has 453 states and 479 transitions. [2018-04-11 20:49:16,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-04-11 20:49:16,563 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 479 transitions. [2018-04-11 20:49:16,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-04-11 20:49:16,563 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:16,564 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 20:49:16,564 INFO L408 AbstractCegarLoop]: === Iteration 29 === [__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]=== [2018-04-11 20:49:16,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1437071893, now seen corresponding path program 3 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:49:16,569 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:16,623 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:16,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:49:16,626 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:16,639 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:49:16,639 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:16,643 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:16,643 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:49:16,655 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:16,656 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 [2018-04-11 20:49:16,657 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:16,665 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:16,666 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:16,666 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 [2018-04-11 20:49:16,666 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:16,671 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:16,671 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:49:17,253 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:49:17,254 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:19,173 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:19,173 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:39, output treesize:1 [2018-04-11 20:49:19,230 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:49:19,250 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:49:19,250 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33] total 66 [2018-04-11 20:49:19,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-04-11 20:49:19,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-04-11 20:49:19,251 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=4097, Unknown=0, NotChecked=0, Total=4422 [2018-04-11 20:49:19,251 INFO L87 Difference]: Start difference. First operand 453 states and 479 transitions. Second operand 67 states. [2018-04-11 20:49:24,432 WARN L151 SmtUtils]: Spent 112ms on a formula simplification. DAG size of input: 102 DAG size of output 89 [2018-04-11 20:49:24,793 WARN L151 SmtUtils]: Spent 170ms on a formula simplification. DAG size of input: 106 DAG size of output 90 [2018-04-11 20:49:25,121 WARN L151 SmtUtils]: Spent 139ms on a formula simplification. DAG size of input: 97 DAG size of output 89 [2018-04-11 20:49:25,432 WARN L151 SmtUtils]: Spent 155ms on a formula simplification. DAG size of input: 103 DAG size of output 87 [2018-04-11 20:49:26,226 WARN L151 SmtUtils]: Spent 496ms on a formula simplification. DAG size of input: 154 DAG size of output 123 [2018-04-11 20:49:26,759 WARN L151 SmtUtils]: Spent 355ms on a formula simplification. DAG size of input: 147 DAG size of output 122 [2018-04-11 20:49:27,141 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 95 DAG size of output 85 [2018-04-11 20:49:27,420 WARN L151 SmtUtils]: Spent 146ms on a formula simplification. DAG size of input: 99 DAG size of output 89 [2018-04-11 20:49:27,662 WARN L151 SmtUtils]: Spent 134ms on a formula simplification. DAG size of input: 94 DAG size of output 86 [2018-04-11 20:49:28,162 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 87 DAG size of output 79 [2018-04-11 20:49:28,666 WARN L151 SmtUtils]: Spent 252ms on a formula simplification. DAG size of input: 131 DAG size of output 105 [2018-04-11 20:49:29,095 WARN L151 SmtUtils]: Spent 272ms on a formula simplification. DAG size of input: 127 DAG size of output 106 [2018-04-11 20:49:29,368 WARN L151 SmtUtils]: Spent 105ms on a formula simplification. DAG size of input: 84 DAG size of output 76 [2018-04-11 20:49:29,645 WARN L151 SmtUtils]: Spent 128ms on a formula simplification. DAG size of input: 88 DAG size of output 80 [2018-04-11 20:49:29,862 WARN L151 SmtUtils]: Spent 106ms on a formula simplification. DAG size of input: 83 DAG size of output 77 [2018-04-11 20:49:30,663 WARN L151 SmtUtils]: Spent 204ms on a formula simplification. DAG size of input: 114 DAG size of output 92 [2018-04-11 20:49:31,016 WARN L151 SmtUtils]: Spent 204ms on a formula simplification. DAG size of input: 110 DAG size of output 93 [2018-04-11 20:49:32,322 WARN L151 SmtUtils]: Spent 159ms on a formula simplification. DAG size of input: 97 DAG size of output 79 [2018-04-11 20:49:32,636 WARN L151 SmtUtils]: Spent 162ms on a formula simplification. DAG size of input: 93 DAG size of output 80 [2018-04-11 20:49:33,709 WARN L151 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 80 DAG size of output 66 [2018-04-11 20:49:33,941 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 76 DAG size of output 67 [2018-04-11 20:49:36,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:49:36,229 INFO L93 Difference]: Finished difference Result 566 states and 592 transitions. [2018-04-11 20:49:36,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2018-04-11 20:49:36,229 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 138 [2018-04-11 20:49:36,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:49:36,231 INFO L225 Difference]: With dead ends: 566 [2018-04-11 20:49:36,231 INFO L226 Difference]: Without dead ends: 565 [2018-04-11 20:49:36,233 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6642 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=3404, Invalid=26698, Unknown=0, NotChecked=0, Total=30102 [2018-04-11 20:49:36,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2018-04-11 20:49:36,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 467. [2018-04-11 20:49:36,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2018-04-11 20:49:36,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 486 transitions. [2018-04-11 20:49:36,289 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 486 transitions. Word has length 138 [2018-04-11 20:49:36,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:49:36,289 INFO L459 AbstractCegarLoop]: Abstraction has 467 states and 486 transitions. [2018-04-11 20:49:36,289 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-04-11 20:49:36,290 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 486 transitions. [2018-04-11 20:49:36,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-04-11 20:49:36,291 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:49:36,291 INFO L355 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 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] [2018-04-11 20:49:36,291 INFO L408 AbstractCegarLoop]: === Iteration 30 === [__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]=== [2018-04-11 20:49:36,291 INFO L82 PathProgramCache]: Analyzing trace with hash 2083303798, now seen corresponding path program 7 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:49:36,301 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:49:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:49:36,367 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:49:36,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:49:36,371 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:36,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:49:36,376 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:36,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:36,380 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:49:36,394 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:36,396 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 [2018-04-11 20:49:36,396 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:36,417 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:36,418 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:49:36,418 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 [2018-04-11 20:49:36,418 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:49:36,423 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:49:36,423 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:49:37,315 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:49:37,315 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:49:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:49:40,516 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:49:40,516 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 42] total 84 [2018-04-11 20:49:40,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-04-11 20:49:40,517 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-04-11 20:49:40,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=478, Invalid=6662, Unknown=0, NotChecked=0, Total=7140 [2018-04-11 20:49:40,517 INFO L87 Difference]: Start difference. First operand 467 states and 486 transitions. Second operand 85 states. [2018-04-11 20:49:42,296 WARN L151 SmtUtils]: Spent 145ms on a formula simplification. DAG size of input: 109 DAG size of output 93 [2018-04-11 20:49:42,870 WARN L151 SmtUtils]: Spent 282ms on a formula simplification. DAG size of input: 144 DAG size of output 119 [2018-04-11 20:49:43,195 WARN L151 SmtUtils]: Spent 140ms on a formula simplification. DAG size of input: 95 DAG size of output 85 [2018-04-11 20:49:43,612 WARN L151 SmtUtils]: Spent 130ms on a formula simplification. DAG size of input: 99 DAG size of output 89 [2018-04-11 20:49:43,895 WARN L151 SmtUtils]: Spent 151ms on a formula simplification. DAG size of input: 94 DAG size of output 86 [2018-04-11 20:49:44,123 WARN L151 SmtUtils]: Spent 107ms on a formula simplification. DAG size of input: 89 DAG size of output 76 [2018-04-11 20:49:44,619 WARN L151 SmtUtils]: Spent 247ms on a formula simplification. DAG size of input: 131 DAG size of output 105 [2018-04-11 20:49:45,120 WARN L151 SmtUtils]: Spent 271ms on a formula simplification. DAG size of input: 127 DAG size of output 106 [2018-04-11 20:49:45,695 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 84 DAG size of output 76 [2018-04-11 20:49:46,056 WARN L151 SmtUtils]: Spent 146ms on a formula simplification. DAG size of input: 88 DAG size of output 80 [2018-04-11 20:49:46,513 WARN L151 SmtUtils]: Spent 153ms on a formula simplification. DAG size of input: 109 DAG size of output 93 [2018-04-11 20:49:46,779 WARN L151 SmtUtils]: Spent 129ms on a formula simplification. DAG size of input: 83 DAG size of output 77 [2018-04-11 20:49:47,453 WARN L151 SmtUtils]: Spent 208ms on a formula simplification. DAG size of input: 114 DAG size of output 92 [2018-04-11 20:49:47,865 WARN L151 SmtUtils]: Spent 207ms on a formula simplification. DAG size of input: 110 DAG size of output 93 [2018-04-11 20:49:48,539 WARN L151 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 77 DAG size of output 71 [2018-04-11 20:49:49,550 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 97 DAG size of output 79 [2018-04-11 20:49:49,979 WARN L151 SmtUtils]: Spent 156ms on a formula simplification. DAG size of input: 93 DAG size of output 80 [2018-04-11 20:49:50,680 WARN L151 SmtUtils]: Spent 121ms on a formula simplification. DAG size of input: 76 DAG size of output 74 [2018-04-11 20:49:51,675 WARN L151 SmtUtils]: Spent 122ms on a formula simplification. DAG size of input: 76 DAG size of output 74 [2018-04-11 20:49:52,134 WARN L151 SmtUtils]: Spent 109ms on a formula simplification. DAG size of input: 80 DAG size of output 66 [2018-04-11 20:49:52,493 WARN L151 SmtUtils]: Spent 115ms on a formula simplification. DAG size of input: 76 DAG size of output 67 [2018-04-11 20:49:54,145 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 70 DAG size of output 68 [2018-04-11 20:50:03,835 WARN L151 SmtUtils]: Spent 197ms on a formula simplification. DAG size of input: 135 DAG size of output 116 [2018-04-11 20:50:04,498 WARN L151 SmtUtils]: Spent 255ms on a formula simplification. DAG size of input: 139 DAG size of output 117 [2018-04-11 20:50:05,162 WARN L151 SmtUtils]: Spent 249ms on a formula simplification. DAG size of input: 136 DAG size of output 114 [2018-04-11 20:50:06,763 WARN L151 SmtUtils]: Spent 846ms on a formula simplification. DAG size of input: 188 DAG size of output 150 [2018-04-11 20:50:07,507 WARN L151 SmtUtils]: Spent 377ms on a formula simplification. DAG size of input: 150 DAG size of output 124 [2018-04-11 20:50:08,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 20:50:08,092 INFO L93 Difference]: Finished difference Result 818 states and 844 transitions. [2018-04-11 20:50:08,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2018-04-11 20:50:08,092 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 138 [2018-04-11 20:50:08,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 20:50:08,095 INFO L225 Difference]: With dead ends: 818 [2018-04-11 20:50:08,095 INFO L226 Difference]: Without dead ends: 817 [2018-04-11 20:50:08,097 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15431 ImplicationChecksByTransitivity, 27.9s TimeCoverageRelationStatistics Valid=5659, Invalid=57593, Unknown=0, NotChecked=0, Total=63252 [2018-04-11 20:50:08,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2018-04-11 20:50:08,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 517. [2018-04-11 20:50:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2018-04-11 20:50:08,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 537 transitions. [2018-04-11 20:50:08,187 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 537 transitions. Word has length 138 [2018-04-11 20:50:08,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 20:50:08,188 INFO L459 AbstractCegarLoop]: Abstraction has 517 states and 537 transitions. [2018-04-11 20:50:08,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-04-11 20:50:08,188 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 537 transitions. [2018-04-11 20:50:08,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-04-11 20:50:08,189 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 20:50:08,189 INFO L355 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2018-04-11 20:50:08,190 INFO L408 AbstractCegarLoop]: === Iteration 31 === [__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]=== [2018-04-11 20:50:08,190 INFO L82 PathProgramCache]: Analyzing trace with hash 682465942, now seen corresponding path program 8 times No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-04-11 20:50:08,202 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-04-11 20:50:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 20:50:08,259 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 20:50:08,272 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:50:08,272 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:08,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-04-11 20:50:08,283 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:08,287 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:08,287 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-04-11 20:50:08,300 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:50:08,301 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 20:50:08,301 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 [2018-04-11 20:50:08,302 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:08,309 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 [2018-04-11 20:50:08,309 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-04-11 20:50:08,314 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-04-11 20:50:08,314 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:13 [2018-04-11 20:50:09,096 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:50:09,096 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-04-11 20:50:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 20:50:11,481 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 20:50:11,481 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 36] total 72 [2018-04-11 20:50:11,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-04-11 20:50:11,482 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-04-11 20:50:11,482 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=4892, Unknown=0, NotChecked=0, Total=5256 [2018-04-11 20:50:11,482 INFO L87 Difference]: Start difference. First operand 517 states and 537 transitions. Second operand 73 states. [2018-04-11 20:50:18,894 WARN L151 SmtUtils]: Spent 157ms on a formula simplification. DAG size of input: 103 DAG size of output 95 [2018-04-11 20:50:19,517 WARN L151 SmtUtils]: Spent 305ms on a formula simplification. DAG size of input: 144 DAG size of output 126 [2018-04-11 20:50:20,197 WARN L151 SmtUtils]: Spent 336ms on a formula simplification. DAG size of input: 144 DAG size of output 126 [2018-04-11 20:50:20,528 WARN L151 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 113 DAG size of output 98 [2018-04-11 20:50:20,915 WARN L151 SmtUtils]: Spent 186ms on a formula simplification. DAG size of input: 117 DAG size of output 99 [2018-04-11 20:50:21,204 WARN L151 SmtUtils]: Spent 135ms on a formula simplification. DAG size of input: 98 DAG size of output 88 [2018-04-11 20:50:21,575 WARN L151 SmtUtils]: Spent 186ms on a formula simplification. DAG size of input: 114 DAG size of output 96 [2018-04-11 20:50:22,159 WARN L151 SmtUtils]: Spent 293ms on a formula simplification. DAG size of input: 130 DAG size of output 108 [2018-04-11 20:50:22,637 WARN L151 SmtUtils]: Spent 145ms on a formula simplification. DAG size of input: 98 DAG size of output 88 [2018-04-11 20:50:23,121 WARN L151 SmtUtils]: Spent 267ms on a formula simplification. DAG size of input: 138 DAG size of output 120 [2018-04-11 20:50:23,428 WARN L151 SmtUtils]: Spent 160ms on a formula simplification. DAG size of input: 108 DAG size of output 98 [2018-04-11 20:50:23,876 WARN L151 SmtUtils]: Spent 271ms on a formula simplification. DAG size of input: 128 DAG size of output 112 [2018-04-11 20:50:24,292 WARN L151 SmtUtils]: Spent 113ms on a formula simplification. DAG size of input: 87 DAG size of output 79 [2018-04-11 20:50:24,986 WARN L151 SmtUtils]: Spent 233ms on a formula simplification. DAG size of input: 121 DAG size of output 107 [2018-04-11 20:50:25,255 WARN L151 SmtUtils]: Spent 140ms on a formula simplification. DAG size of input: 97 DAG size of output 89 [2018-04-11 20:50:25,646 WARN L151 SmtUtils]: Spent 198ms on a formula simplification. DAG size of input: 111 DAG size of output 99 [2018-04-11 20:50:25,916 WARN L151 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 76 DAG size of output 70 [2018-04-11 20:50:26,513 WARN L151 SmtUtils]: Spent 185ms on a formula simplification. DAG size of input: 104 DAG size of output 94 [2018-04-11 20:50:26,759 WARN L151 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 86 DAG size of output 80 [2018-04-11 20:50:27,065 WARN L151 SmtUtils]: Spent 147ms on a formula simplification. DAG size of input: 94 DAG size of output 86 [2018-04-11 20:50:27,812 WARN L151 SmtUtils]: Spent 138ms on a formula simplification. DAG size of input: 87 DAG size of output 81 [2018-04-11 20:50:28,282 WARN L151 SmtUtils]: Spent 116ms on a formula simplification. DAG size of input: 77 DAG size of output 73 Received shutdown request... [2018-04-11 20:50:29,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2018-04-11 20:50:29,864 WARN L519 AbstractCegarLoop]: Verification canceled [2018-04-11 20:50:29,868 WARN L197 ceAbstractionStarter]: Timeout [2018-04-11 20:50:29,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 08:50:29 BoogieIcfgContainer [2018-04-11 20:50:29,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 20:50:29,869 INFO L168 Benchmark]: Toolchain (without parser) took 252681.31 ms. Allocated memory was 302.0 MB in the beginning and 404.2 MB in the end (delta: 102.2 MB). Free memory was 238.0 MB in the beginning and 236.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 103.6 MB. Max. memory is 5.3 GB. [2018-04-11 20:50:29,870 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory is still 264.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 20:50:29,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.85 ms. Allocated memory is still 302.0 MB. Free memory was 238.0 MB in the beginning and 213.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. [2018-04-11 20:50:29,871 INFO L168 Benchmark]: Boogie Preprocessor took 56.53 ms. Allocated memory is still 302.0 MB. Free memory was 213.9 MB in the beginning and 210.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 5.3 GB. [2018-04-11 20:50:29,871 INFO L168 Benchmark]: RCFGBuilder took 504.53 ms. Allocated memory was 302.0 MB in the beginning and 460.8 MB in the end (delta: 158.9 MB). Free memory was 210.9 MB in the beginning and 394.8 MB in the end (delta: -184.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 5.3 GB. [2018-04-11 20:50:29,871 INFO L168 Benchmark]: TraceAbstraction took 251800.46 ms. Allocated memory was 460.8 MB in the beginning and 404.2 MB in the end (delta: -56.6 MB). Free memory was 394.8 MB in the beginning and 236.7 MB in the end (delta: 158.1 MB). Peak memory consumption was 101.5 MB. Max. memory is 5.3 GB. [2018-04-11 20:50:29,873 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 302.0 MB. Free memory is still 264.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 314.85 ms. Allocated memory is still 302.0 MB. Free memory was 238.0 MB in the beginning and 213.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 56.53 ms. Allocated memory is still 302.0 MB. Free memory was 213.9 MB in the beginning and 210.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 5.3 GB. * RCFGBuilder took 504.53 ms. Allocated memory was 302.0 MB in the beginning and 460.8 MB in the end (delta: 158.9 MB). Free memory was 210.9 MB in the beginning and 394.8 MB in the end (delta: -184.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 251800.46 ms. Allocated memory was 460.8 MB in the beginning and 404.2 MB in the end (delta: -56.6 MB). Free memory was 394.8 MB in the beginning and 236.7 MB in the end (delta: 158.1 MB). Peak memory consumption was 101.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 549]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 549). Cancelled while BasicCegarLoop was constructing difference of abstraction (517states) and interpolant automaton (currently 121 states, 73 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 32. - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 547). Cancelled while BasicCegarLoop was constructing difference of abstraction (517states) and interpolant automaton (currently 121 states, 73 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 32. - TimeoutResultAtElement [Line: 549]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 549). Cancelled while BasicCegarLoop was constructing difference of abstraction (517states) and interpolant automaton (currently 121 states, 73 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 32. - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 547). Cancelled while BasicCegarLoop was constructing difference of abstraction (517states) and interpolant automaton (currently 121 states, 73 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 32. - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 547). Cancelled while BasicCegarLoop was constructing difference of abstraction (517states) and interpolant automaton (currently 121 states, 73 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 32. - TimeoutResultAtElement [Line: 547]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 547). Cancelled while BasicCegarLoop was constructing difference of abstraction (517states) and interpolant automaton (currently 121 states, 73 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 32. - TimeoutResultAtElement [Line: 567]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 567). Cancelled while BasicCegarLoop was constructing difference of abstraction (517states) and interpolant automaton (currently 121 states, 73 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 32. - TimeoutResultAtElement [Line: 556]: Timeout (TraceAbstraction) Unable to prove that all allocated memory was freed (line 556). Cancelled while BasicCegarLoop was constructing difference of abstraction (517states) and interpolant automaton (currently 121 states, 73 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 32. - TimeoutResultAtElement [Line: 567]: Timeout (TraceAbstraction) Unable to prove that pointer dereference always succeeds (line 567). Cancelled while BasicCegarLoop was constructing difference of abstraction (517states) and interpolant automaton (currently 121 states, 73 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 32. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 89 locations, 9 error locations. TIMEOUT Result, 251.7s OverallTime, 31 OverallIterations, 8 TraceHistogramMax, 206.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2364 SDtfs, 21527 SDslu, 48834 SDs, 0 SdLazy, 44093 SolverSat, 3241 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6040 GetRequests, 3210 SyntacticMatches, 14 SemanticMatches, 2815 ConstructedPredicates, 20 IntricatePredicates, 0 DeprecatedPredicates, 97087 ImplicationChecksByTransitivity, 210.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=517occurred in iteration=30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 30 MinimizatonAttempts, 1900 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 42.3s InterpolantComputationTime, 2192 NumberOfCodeBlocks, 2192 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 4322 ConstructedInterpolants, 195 QuantifiedInterpolants, 6482742 SizeOfPredicates, 830 NumberOfNonLiveVariables, 6434 ConjunctsInSsa, 1870 ConjunctsInUnsatCore, 62 InterpolantComputations, 24 PerfectInterpolantSequences, 3/4584 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_20-50-29-879.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrncpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_20-50-29-879.csv Completed graceful shutdown