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_cstrspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cf7e2d-m [2018-03-29 20:42:09,955 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-03-29 20:42:09,957 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-03-29 20:42:09,970 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-03-29 20:42:09,970 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-03-29 20:42:09,971 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-03-29 20:42:09,972 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-03-29 20:42:09,973 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-03-29 20:42:09,975 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-03-29 20:42:09,976 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-03-29 20:42:09,977 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-03-29 20:42:09,978 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-03-29 20:42:09,979 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-03-29 20:42:09,980 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-03-29 20:42:09,981 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-03-29 20:42:09,983 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-03-29 20:42:09,985 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-03-29 20:42:09,987 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-03-29 20:42:09,988 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-03-29 20:42:09,989 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-03-29 20:42:09,992 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-03-29 20:42:09,992 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-03-29 20:42:09,992 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-03-29 20:42:09,993 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-03-29 20:42:09,994 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-03-29 20:42:09,995 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-03-29 20:42:09,996 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-03-29 20:42:09,996 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-03-29 20:42:09,997 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-03-29 20:42:09,997 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-03-29 20:42:09,998 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-03-29 20:42:09,998 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 [2018-03-29 20:42:10,022 INFO L110 SettingsManager]: Loading preferences was successful [2018-03-29 20:42:10,022 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-03-29 20:42:10,022 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-03-29 20:42:10,022 INFO L133 SettingsManager]: * ultimate.logging.details=de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation=DEBUG; [2018-03-29 20:42:10,023 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-03-29 20:42:10,023 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-03-29 20:42:10,023 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-03-29 20:42:10,024 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-03-29 20:42:10,024 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-03-29 20:42:10,024 INFO L131 SettingsManager]: Preferences of LTL2Aut differ from their defaults: [2018-03-29 20:42:10,024 INFO L133 SettingsManager]: * Property to check=[] a a: x > 42 [2018-03-29 20:42:10,025 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-03-29 20:42:10,025 INFO L133 SettingsManager]: * sizeof long=4 [2018-03-29 20:42:10,025 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-03-29 20:42:10,025 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-03-29 20:42:10,025 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-03-29 20:42:10,025 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-03-29 20:42:10,025 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-03-29 20:42:10,026 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-03-29 20:42:10,026 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-03-29 20:42:10,026 INFO L133 SettingsManager]: * sizeof long double=12 [2018-03-29 20:42:10,026 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-03-29 20:42:10,026 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-03-29 20:42:10,026 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-03-29 20:42:10,027 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-03-29 20:42:10,027 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-03-29 20:42:10,027 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-03-29 20:42:10,027 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-03-29 20:42:10,027 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-03-29 20:42:10,028 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-03-29 20:42:10,028 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-03-29 20:42:10,028 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-03-29 20:42:10,028 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-03-29 20:42:10,029 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-03-29 20:42:10,029 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-03-29 20:42:10,029 INFO L131 SettingsManager]: Preferences of Boogie Printer differ from their defaults: [2018-03-29 20:42:10,029 INFO L133 SettingsManager]: * Dump path:=C:\Users\alex\AppData\Local\Temp\ [2018-03-29 20:42:10,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-03-29 20:42:10,071 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-03-29 20:42:10,074 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-03-29 20:42:10,075 INFO L271 PluginConnector]: Initializing CDTParser... [2018-03-29 20:42:10,076 INFO L276 PluginConnector]: CDTParser initialized [2018-03-29 20:42:10,077 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,379 INFO L225 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG369509dd1 [2018-03-29 20:42:10,561 INFO L287 CDTParser]: IsIndexed: true [2018-03-29 20:42:10,561 INFO L288 CDTParser]: Found 1 translation units. [2018-03-29 20:42:10,562 INFO L168 CDTParser]: Scanning openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,572 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-03-29 20:42:10,573 INFO L215 ultiparseSymbolTable]: [2018-03-29 20:42:10,573 INFO L218 ultiparseSymbolTable]: Function table: [2018-03-29 20:42:10,573 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 ('__bswap_64') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,573 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,573 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 ('__bswap_32') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,574 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn ('cstrspn') in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,574 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-03-29 20:42:10,574 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fsfilcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,574 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____ssize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,574 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____socklen_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,574 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,574 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____time_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,575 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,575 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__gid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,575 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____nlink_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,575 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,575 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ldiv_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,575 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutex_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,575 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_short in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,575 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ino_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,575 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__register_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,575 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,575 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____rlim_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__timer_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__mode_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__key_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____suseconds_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,576 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fsblkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____rlim64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsfilcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_mutexattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____timer_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,577 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____id_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__nlink_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____qaddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsblkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_ulong_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,578 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__loff_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__uint in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fd_mask in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_int in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_key_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,579 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____key_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____sig_atomic_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsword_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____useconds_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__sigset_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,580 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____blkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrierattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ssize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__time_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__dev_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__id_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____fsid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,581 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____ino64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__daddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____syscall_slong_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ushort in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_rwlockattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__suseconds_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_long in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fd_mask in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_barrier_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,582 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__clock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____off_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fsid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____clock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__clockid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint8_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____loff_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____pid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____daddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_condattr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____blksize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____gid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,583 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____WAIT_STATUS in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,584 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__lldiv_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,584 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____dev_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,584 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__int16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,584 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__uid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,584 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_char in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,584 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____off64_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,584 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__fd_set in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,584 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_attr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,584 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____caddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,584 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__wchar_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,584 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__caddr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,584 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_int16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,585 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_cond_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,585 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__ulong in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,585 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____sigset_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,585 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____pthread_list_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,585 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____clockid_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,585 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_char in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,585 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__quad_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,585 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__blkcnt_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,586 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__size_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,586 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__off_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,586 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__u_short in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,586 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____int16_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,586 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__div_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,586 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_once_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,586 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____intptr_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,586 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____ino_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,586 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____uint32_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,587 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____u_long in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,587 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____mode_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,587 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__blksize_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,587 INFO L230 ultiparseSymbolTable]: Global variable declaration of __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__pthread_spinlock_t in openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:10,604 INFO L330 CDTParser]: Deleted temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAG369509dd1 [2018-03-29 20:42:10,610 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-03-29 20:42:10,614 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-03-29 20:42:10,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-03-29 20:42:10,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-03-29 20:42:10,624 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-03-29 20:42:10,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 08:42:10" (1/1) ... [2018-03-29 20:42:10,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42171d6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:42:10, skipping insertion in model container [2018-03-29 20:42:10,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.03 08:42:10" (1/1) ... [2018-03-29 20:42:10,648 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 20:42:10,679 INFO L167 Dispatcher]: Using SV-COMP mode [2018-03-29 20:42:10,855 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 20:42:10,902 INFO L175 PostProcessor]: Settings: Checked method=main [2018-03-29 20:42:10,909 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 112 non ball SCCs. Number of states in SCCs 112. [2018-03-29 20:42:10,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:42:10 WrapperNode [2018-03-29 20:42:10,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-03-29 20:42:10,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-03-29 20:42:10,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-03-29 20:42:10,959 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-03-29 20:42:10,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:42:10" (1/1) ... [2018-03-29 20:42:10,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:42:10" (1/1) ... [2018-03-29 20:42:10,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:42:10" (1/1) ... [2018-03-29 20:42:10,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:42:10" (1/1) ... [2018-03-29 20:42:11,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:42:10" (1/1) ... [2018-03-29 20:42:11,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:42:10" (1/1) ... [2018-03-29 20:42:11,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:42:10" (1/1) ... [2018-03-29 20:42:11,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-03-29 20:42:11,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-03-29 20:42:11,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-03-29 20:42:11,022 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-03-29 20:42:11,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:42:10" (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 [2018-03-29 20:42:11,149 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-03-29 20:42:11,149 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-03-29 20:42:11,150 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-29 20:42:11,150 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-29 20:42:11,150 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-03-29 20:42:11,150 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-03-29 20:42:11,150 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_32 [2018-03-29 20:42:11,150 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i____bswap_64 [2018-03-29 20:42:11,150 INFO L128 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-03-29 20:42:11,151 INFO L128 BoogieDeclarations]: Found specification of procedure atof [2018-03-29 20:42:11,151 INFO L128 BoogieDeclarations]: Found specification of procedure atoi [2018-03-29 20:42:11,151 INFO L128 BoogieDeclarations]: Found specification of procedure atol [2018-03-29 20:42:11,151 INFO L128 BoogieDeclarations]: Found specification of procedure atoll [2018-03-29 20:42:11,151 INFO L128 BoogieDeclarations]: Found specification of procedure strtod [2018-03-29 20:42:11,151 INFO L128 BoogieDeclarations]: Found specification of procedure strtof [2018-03-29 20:42:11,151 INFO L128 BoogieDeclarations]: Found specification of procedure strtold [2018-03-29 20:42:11,152 INFO L128 BoogieDeclarations]: Found specification of procedure strtol [2018-03-29 20:42:11,152 INFO L128 BoogieDeclarations]: Found specification of procedure strtoul [2018-03-29 20:42:11,152 INFO L128 BoogieDeclarations]: Found specification of procedure strtoq [2018-03-29 20:42:11,152 INFO L128 BoogieDeclarations]: Found specification of procedure strtouq [2018-03-29 20:42:11,152 INFO L128 BoogieDeclarations]: Found specification of procedure strtoll [2018-03-29 20:42:11,152 INFO L128 BoogieDeclarations]: Found specification of procedure strtoull [2018-03-29 20:42:11,153 INFO L128 BoogieDeclarations]: Found specification of procedure l64a [2018-03-29 20:42:11,153 INFO L128 BoogieDeclarations]: Found specification of procedure a64l [2018-03-29 20:42:11,153 INFO L128 BoogieDeclarations]: Found specification of procedure select [2018-03-29 20:42:11,153 INFO L128 BoogieDeclarations]: Found specification of procedure pselect [2018-03-29 20:42:11,153 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-03-29 20:42:11,153 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-03-29 20:42:11,153 INFO L128 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-03-29 20:42:11,153 INFO L128 BoogieDeclarations]: Found specification of procedure random [2018-03-29 20:42:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure srandom [2018-03-29 20:42:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure initstate [2018-03-29 20:42:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure setstate [2018-03-29 20:42:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure random_r [2018-03-29 20:42:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure srandom_r [2018-03-29 20:42:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure initstate_r [2018-03-29 20:42:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure setstate_r [2018-03-29 20:42:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure rand [2018-03-29 20:42:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure srand [2018-03-29 20:42:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure rand_r [2018-03-29 20:42:11,154 INFO L128 BoogieDeclarations]: Found specification of procedure drand48 [2018-03-29 20:42:11,155 INFO L128 BoogieDeclarations]: Found specification of procedure erand48 [2018-03-29 20:42:11,155 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48 [2018-03-29 20:42:11,155 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48 [2018-03-29 20:42:11,155 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48 [2018-03-29 20:42:11,155 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48 [2018-03-29 20:42:11,155 INFO L128 BoogieDeclarations]: Found specification of procedure srand48 [2018-03-29 20:42:11,155 INFO L128 BoogieDeclarations]: Found specification of procedure seed48 [2018-03-29 20:42:11,155 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48 [2018-03-29 20:42:11,155 INFO L128 BoogieDeclarations]: Found specification of procedure drand48_r [2018-03-29 20:42:11,155 INFO L128 BoogieDeclarations]: Found specification of procedure erand48_r [2018-03-29 20:42:11,156 INFO L128 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-03-29 20:42:11,156 INFO L128 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-03-29 20:42:11,156 INFO L128 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-03-29 20:42:11,156 INFO L128 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-03-29 20:42:11,156 INFO L128 BoogieDeclarations]: Found specification of procedure srand48_r [2018-03-29 20:42:11,156 INFO L128 BoogieDeclarations]: Found specification of procedure seed48_r [2018-03-29 20:42:11,156 INFO L128 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-03-29 20:42:11,156 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-03-29 20:42:11,156 INFO L128 BoogieDeclarations]: Found specification of procedure calloc [2018-03-29 20:42:11,157 INFO L128 BoogieDeclarations]: Found specification of procedure realloc [2018-03-29 20:42:11,157 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-03-29 20:42:11,157 INFO L128 BoogieDeclarations]: Found specification of procedure cfree [2018-03-29 20:42:11,157 INFO L128 BoogieDeclarations]: Found specification of procedure alloca [2018-03-29 20:42:11,157 INFO L128 BoogieDeclarations]: Found specification of procedure valloc [2018-03-29 20:42:11,157 INFO L128 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-03-29 20:42:11,157 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-03-29 20:42:11,157 INFO L128 BoogieDeclarations]: Found specification of procedure atexit [2018-03-29 20:42:11,157 INFO L128 BoogieDeclarations]: Found specification of procedure on_exit [2018-03-29 20:42:11,157 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-03-29 20:42:11,157 INFO L128 BoogieDeclarations]: Found specification of procedure _Exit [2018-03-29 20:42:11,157 INFO L128 BoogieDeclarations]: Found specification of procedure getenv [2018-03-29 20:42:11,158 INFO L128 BoogieDeclarations]: Found specification of procedure putenv [2018-03-29 20:42:11,158 INFO L128 BoogieDeclarations]: Found specification of procedure setenv [2018-03-29 20:42:11,158 INFO L128 BoogieDeclarations]: Found specification of procedure unsetenv [2018-03-29 20:42:11,158 INFO L128 BoogieDeclarations]: Found specification of procedure clearenv [2018-03-29 20:42:11,158 INFO L128 BoogieDeclarations]: Found specification of procedure mktemp [2018-03-29 20:42:11,158 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemp [2018-03-29 20:42:11,158 INFO L128 BoogieDeclarations]: Found specification of procedure mkstemps [2018-03-29 20:42:11,158 INFO L128 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-03-29 20:42:11,158 INFO L128 BoogieDeclarations]: Found specification of procedure system [2018-03-29 20:42:11,158 INFO L128 BoogieDeclarations]: Found specification of procedure realpath [2018-03-29 20:42:11,158 INFO L128 BoogieDeclarations]: Found specification of procedure bsearch [2018-03-29 20:42:11,158 INFO L128 BoogieDeclarations]: Found specification of procedure qsort [2018-03-29 20:42:11,159 INFO L128 BoogieDeclarations]: Found specification of procedure abs [2018-03-29 20:42:11,159 INFO L128 BoogieDeclarations]: Found specification of procedure labs [2018-03-29 20:42:11,159 INFO L128 BoogieDeclarations]: Found specification of procedure llabs [2018-03-29 20:42:11,159 INFO L128 BoogieDeclarations]: Found specification of procedure div [2018-03-29 20:42:11,159 INFO L128 BoogieDeclarations]: Found specification of procedure ldiv [2018-03-29 20:42:11,159 INFO L128 BoogieDeclarations]: Found specification of procedure lldiv [2018-03-29 20:42:11,159 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt [2018-03-29 20:42:11,159 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt [2018-03-29 20:42:11,160 INFO L128 BoogieDeclarations]: Found specification of procedure gcvt [2018-03-29 20:42:11,160 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt [2018-03-29 20:42:11,160 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt [2018-03-29 20:42:11,160 INFO L128 BoogieDeclarations]: Found specification of procedure qgcvt [2018-03-29 20:42:11,160 INFO L128 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-03-29 20:42:11,160 INFO L128 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-03-29 20:42:11,160 INFO L128 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-03-29 20:42:11,161 INFO L128 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-03-29 20:42:11,161 INFO L128 BoogieDeclarations]: Found specification of procedure mblen [2018-03-29 20:42:11,161 INFO L128 BoogieDeclarations]: Found specification of procedure mbtowc [2018-03-29 20:42:11,161 INFO L128 BoogieDeclarations]: Found specification of procedure wctomb [2018-03-29 20:42:11,161 INFO L128 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-03-29 20:42:11,161 INFO L128 BoogieDeclarations]: Found specification of procedure wcstombs [2018-03-29 20:42:11,161 INFO L128 BoogieDeclarations]: Found specification of procedure rpmatch [2018-03-29 20:42:11,161 INFO L128 BoogieDeclarations]: Found specification of procedure getsubopt [2018-03-29 20:42:11,162 INFO L128 BoogieDeclarations]: Found specification of procedure getloadavg [2018-03-29 20:42:11,162 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-03-29 20:42:11,162 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspn [2018-03-29 20:42:11,162 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-03-29 20:42:11,162 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-03-29 20:42:11,162 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-03-29 20:42:11,162 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-03-29 20:42:11,162 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-03-29 20:42:11,162 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-03-29 20:42:11,162 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-03-29 20:42:11,163 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-03-29 20:42:11,518 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-03-29 20:42:11,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 08:42:11 BoogieIcfgContainer [2018-03-29 20:42:11,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-03-29 20:42:11,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-03-29 20:42:11,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-03-29 20:42:11,522 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-03-29 20:42:11,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.03 08:42:10" (1/3) ... [2018-03-29 20:42:11,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f3fcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 08:42:11, skipping insertion in model container [2018-03-29 20:42:11,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.03 08:42:10" (2/3) ... [2018-03-29 20:42:11,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f3fcea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.03 08:42:11, skipping insertion in model container [2018-03-29 20:42:11,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.03 08:42:11" (3/3) ... [2018-03-29 20:42:11,525 INFO L107 eAbstractionObserver]: Analyzing ICFG openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-03-29 20:42:11,531 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-03-29 20:42:11,538 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-03-29 20:42:11,581 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-03-29 20:42:11,581 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-03-29 20:42:11,582 INFO L370 AbstractCegarLoop]: Hoare is true [2018-03-29 20:42:11,582 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-03-29 20:42:11,582 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-03-29 20:42:11,582 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-03-29 20:42:11,582 INFO L374 AbstractCegarLoop]: Difference is false [2018-03-29 20:42:11,582 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-03-29 20:42:11,582 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-03-29 20:42:11,583 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-03-29 20:42:11,594 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-03-29 20:42:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-03-29 20:42:11,599 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:11,600 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:42:11,600 INFO L408 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:11,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1416876498, 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 [2018-03-29 20:42:11,619 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:11,657 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:11,699 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 [2018-03-29 20:42:11,701 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:11,705 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:11,705 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 20:42:11,730 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 [2018-03-29 20:42:11,730 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:11,744 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-03-29 20:42:11,745 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-03-29 20:42:11,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:11,757 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:11,805 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:42:11,805 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 20:42:11,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 20:42:11,816 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 20:42:11,817 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-29 20:42:11,818 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 4 states. [2018-03-29 20:42:11,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:11,924 INFO L93 Difference]: Finished difference Result 83 states and 86 transitions. [2018-03-29 20:42:11,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-29 20:42:11,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-03-29 20:42:11,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:11,937 INFO L225 Difference]: With dead ends: 83 [2018-03-29 20:42:11,937 INFO L226 Difference]: Without dead ends: 65 [2018-03-29 20:42:11,941 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-29 20:42:11,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-03-29 20:42:11,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-03-29 20:42:11,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-03-29 20:42:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2018-03-29 20:42:11,977 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 19 [2018-03-29 20:42:11,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:11,977 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2018-03-29 20:42:11,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 20:42:11,978 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2018-03-29 20:42:11,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-03-29 20:42:11,978 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:11,978 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:42:11,978 INFO L408 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:11,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1416876499, 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 [2018-03-29 20:42:11,985 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:12,003 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:12,029 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 [2018-03-29 20:42:12,029 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:12,042 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 [2018-03-29 20:42:12,042 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:12,048 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:12,048 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-03-29 20:42:12,077 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:42:12,081 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 [2018-03-29 20:42:12,082 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:12,105 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:42:12,106 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:42:12,107 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 [2018-03-29 20:42:12,107 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:12,115 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:12,115 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-03-29 20:42:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:12,132 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:14,283 WARN L148 SmtUtils]: Spent 2049ms on a formula simplification that was a NOOP. DAG size: 26 [2018-03-29 20:42:14,297 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:14,298 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 5 variables, input treesize:25, output treesize:3 [2018-03-29 20:42:14,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:14,328 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:42:14,328 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2018-03-29 20:42:14,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-03-29 20:42:14,330 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-03-29 20:42:14,331 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-03-29 20:42:14,331 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand 9 states. [2018-03-29 20:42:14,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:14,442 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2018-03-29 20:42:14,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 20:42:14,442 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-03-29 20:42:14,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:14,443 INFO L225 Difference]: With dead ends: 65 [2018-03-29 20:42:14,444 INFO L226 Difference]: Without dead ends: 64 [2018-03-29 20:42:14,445 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-03-29 20:42:14,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-03-29 20:42:14,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-03-29 20:42:14,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-03-29 20:42:14,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-03-29 20:42:14,453 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 19 [2018-03-29 20:42:14,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:14,454 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-03-29 20:42:14,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-03-29 20:42:14,454 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-03-29 20:42:14,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-03-29 20:42:14,455 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:14,455 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:42:14,455 INFO L408 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:14,456 INFO L82 PathProgramCache]: Analyzing trace with hash 973498482, 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 [2018-03-29 20:42:14,472 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:14,486 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:14,494 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 [2018-03-29 20:42:14,494 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:14,511 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:14,511 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-03-29 20:42:14,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:14,521 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:14,552 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:42:14,552 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-03-29 20:42:14,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-03-29 20:42:14,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-03-29 20:42:14,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-03-29 20:42:14,553 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 4 states. [2018-03-29 20:42:14,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:14,584 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2018-03-29 20:42:14,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-03-29 20:42:14,584 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-03-29 20:42:14,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:14,585 INFO L225 Difference]: With dead ends: 64 [2018-03-29 20:42:14,585 INFO L226 Difference]: Without dead ends: 63 [2018-03-29 20:42:14,586 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-03-29 20:42:14,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-03-29 20:42:14,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-03-29 20:42:14,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-03-29 20:42:14,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-03-29 20:42:14,591 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 20 [2018-03-29 20:42:14,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:14,592 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-03-29 20:42:14,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-03-29 20:42:14,592 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-03-29 20:42:14,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-03-29 20:42:14,593 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:14,593 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:42:14,593 INFO L408 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:14,593 INFO L82 PathProgramCache]: Analyzing trace with hash 973498483, 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 [2018-03-29 20:42:14,601 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:14,613 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:14,621 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 [2018-03-29 20:42:14,621 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:14,626 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:14,626 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-03-29 20:42:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:14,643 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:14,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:14,710 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:42:14,710 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2018-03-29 20:42:14,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-29 20:42:14,710 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-29 20:42:14,711 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-03-29 20:42:14,711 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 7 states. [2018-03-29 20:42:14,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:14,793 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2018-03-29 20:42:14,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-03-29 20:42:14,794 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-03-29 20:42:14,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:14,795 INFO L225 Difference]: With dead ends: 63 [2018-03-29 20:42:14,795 INFO L226 Difference]: Without dead ends: 62 [2018-03-29 20:42:14,795 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-03-29 20:42:14,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-03-29 20:42:14,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-03-29 20:42:14,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-03-29 20:42:14,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2018-03-29 20:42:14,802 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 20 [2018-03-29 20:42:14,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:14,803 INFO L459 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2018-03-29 20:42:14,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-29 20:42:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2018-03-29 20:42:14,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-03-29 20:42:14,804 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:14,804 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] [2018-03-29 20:42:14,804 INFO L408 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:14,804 INFO L82 PathProgramCache]: Analyzing trace with hash -54369342, 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 [2018-03-29 20:42:14,813 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:14,833 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:14,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:14,913 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:14,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:14,940 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:42:14,940 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-03-29 20:42:14,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-29 20:42:14,941 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-29 20:42:14,941 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-03-29 20:42:14,941 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 7 states. [2018-03-29 20:42:15,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:15,020 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2018-03-29 20:42:15,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-29 20:42:15,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-03-29 20:42:15,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:15,022 INFO L225 Difference]: With dead ends: 62 [2018-03-29 20:42:15,022 INFO L226 Difference]: Without dead ends: 61 [2018-03-29 20:42:15,023 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-03-29 20:42:15,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-03-29 20:42:15,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-03-29 20:42:15,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-03-29 20:42:15,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2018-03-29 20:42:15,029 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 30 [2018-03-29 20:42:15,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:15,029 INFO L459 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2018-03-29 20:42:15,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-29 20:42:15,030 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2018-03-29 20:42:15,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-03-29 20:42:15,030 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:15,031 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] [2018-03-29 20:42:15,031 INFO L408 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:15,031 INFO L82 PathProgramCache]: Analyzing trace with hash -54369341, 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 [2018-03-29 20:42:15,036 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:15,058 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:15,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:15,118 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:15,125 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 [2018-03-29 20:42:15,126 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:15,131 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 [2018-03-29 20:42:15,132 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:15,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:42:15,134 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-03-29 20:42:15,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:15,167 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:42:15,167 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-03-29 20:42:15,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-29 20:42:15,168 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-29 20:42:15,168 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-03-29 20:42:15,168 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 10 states. [2018-03-29 20:42:15,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:15,355 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2018-03-29 20:42:15,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-29 20:42:15,356 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-03-29 20:42:15,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:15,356 INFO L225 Difference]: With dead ends: 65 [2018-03-29 20:42:15,356 INFO L226 Difference]: Without dead ends: 64 [2018-03-29 20:42:15,357 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-03-29 20:42:15,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-03-29 20:42:15,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-03-29 20:42:15,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-03-29 20:42:15,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2018-03-29 20:42:15,364 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 30 [2018-03-29 20:42:15,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:15,364 INFO L459 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2018-03-29 20:42:15,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-29 20:42:15,365 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2018-03-29 20:42:15,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-03-29 20:42:15,366 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:15,366 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] [2018-03-29 20:42:15,366 INFO L408 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:15,367 INFO L82 PathProgramCache]: Analyzing trace with hash 2100809862, 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 [2018-03-29 20:42:15,376 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:15,400 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:15,447 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:15,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:15,477 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:42:15,478 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2018-03-29 20:42:15,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-03-29 20:42:15,478 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-03-29 20:42:15,478 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-03-29 20:42:15,479 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand 7 states. [2018-03-29 20:42:15,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:15,556 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2018-03-29 20:42:15,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-03-29 20:42:15,557 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-03-29 20:42:15,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:15,558 INFO L225 Difference]: With dead ends: 68 [2018-03-29 20:42:15,558 INFO L226 Difference]: Without dead ends: 67 [2018-03-29 20:42:15,558 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-03-29 20:42:15,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-03-29 20:42:15,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2018-03-29 20:42:15,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-03-29 20:42:15,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2018-03-29 20:42:15,565 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 38 [2018-03-29 20:42:15,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:15,565 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2018-03-29 20:42:15,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-03-29 20:42:15,566 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2018-03-29 20:42:15,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-03-29 20:42:15,567 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:15,567 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] [2018-03-29 20:42:15,567 INFO L408 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:15,567 INFO L82 PathProgramCache]: Analyzing trace with hash 2100809863, 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 [2018-03-29 20:42:15,574 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:15,599 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:15,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:15,657 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:15,687 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 [2018-03-29 20:42:15,687 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:15,696 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 [2018-03-29 20:42:15,697 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:15,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:42:15,700 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2018-03-29 20:42:15,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:15,734 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:42:15,734 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2018-03-29 20:42:15,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-03-29 20:42:15,735 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-03-29 20:42:15,735 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-03-29 20:42:15,735 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand 10 states. [2018-03-29 20:42:15,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:15,868 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2018-03-29 20:42:15,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-03-29 20:42:15,868 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2018-03-29 20:42:15,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:15,869 INFO L225 Difference]: With dead ends: 68 [2018-03-29 20:42:15,869 INFO L226 Difference]: Without dead ends: 67 [2018-03-29 20:42:15,870 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-03-29 20:42:15,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-03-29 20:42:15,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-03-29 20:42:15,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-03-29 20:42:15,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2018-03-29 20:42:15,875 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 38 [2018-03-29 20:42:15,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:15,876 INFO L459 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2018-03-29 20:42:15,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-03-29 20:42:15,876 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2018-03-29 20:42:15,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-03-29 20:42:15,877 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:15,877 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:42:15,877 INFO L408 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:15,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1894495506, 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 [2018-03-29 20:42:15,887 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:15,910 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:15,924 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 [2018-03-29 20:42:15,924 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:15,928 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:15,928 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 20:42:15,939 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:42:15,940 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:42:15,940 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 [2018-03-29 20:42:15,941 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:15,943 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:15,943 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:8 [2018-03-29 20:42:15,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-03-29 20:42:15,961 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 [2018-03-29 20:42:15,961 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:15,963 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:15,968 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. [2018-03-29 20:42:15,968 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-03-29 20:42:15,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 26 [2018-03-29 20:42:15,997 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 [2018-03-29 20:42:15,998 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:16,016 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:16,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-03-29 20:42:16,026 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:39, output treesize:35 [2018-03-29 20:42:16,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2018-03-29 20:42:16,320 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 [2018-03-29 20:42:16,320 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-29 20:42:16,328 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2018-03-29 20:42:16,328 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:16,332 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:42:16,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:42:16,344 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:52, output treesize:29 [2018-03-29 20:42:16,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:16,506 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:16,948 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 [2018-03-29 20:42:16,949 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:16,955 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 [2018-03-29 20:42:16,964 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 [2018-03-29 20:42:16,964 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:16,966 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:16,971 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:16,971 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:35, output treesize:7 [2018-03-29 20:42:17,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:17,038 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:42:17,038 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 30 [2018-03-29 20:42:17,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-03-29 20:42:17,039 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-03-29 20:42:17,039 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=836, Unknown=0, NotChecked=0, Total=930 [2018-03-29 20:42:17,039 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand 31 states. [2018-03-29 20:42:18,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:18,543 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2018-03-29 20:42:18,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-03-29 20:42:18,543 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 46 [2018-03-29 20:42:18,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:18,546 INFO L225 Difference]: With dead ends: 98 [2018-03-29 20:42:18,546 INFO L226 Difference]: Without dead ends: 97 [2018-03-29 20:42:18,548 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=347, Invalid=2305, Unknown=0, NotChecked=0, Total=2652 [2018-03-29 20:42:18,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-03-29 20:42:18,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 87. [2018-03-29 20:42:18,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-03-29 20:42:18,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2018-03-29 20:42:18,561 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 46 [2018-03-29 20:42:18,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:18,561 INFO L459 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2018-03-29 20:42:18,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-03-29 20:42:18,561 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2018-03-29 20:42:18,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-03-29 20:42:18,562 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:18,562 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:42:18,562 INFO L408 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:18,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1397965012, 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 [2018-03-29 20:42:18,573 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:18,597 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:18,612 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 [2018-03-29 20:42:18,614 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 [2018-03-29 20:42:18,614 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:18,616 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:18,620 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. [2018-03-29 20:42:18,621 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:21 [2018-03-29 20:42:18,953 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 [2018-03-29 20:42:18,966 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 [2018-03-29 20:42:18,966 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-29 20:42:18,970 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:42:18,980 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:42:18,980 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:29 [2018-03-29 20:42:19,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:19,073 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:19,316 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 [2018-03-29 20:42:19,316 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:19,323 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 [2018-03-29 20:42:19,332 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 [2018-03-29 20:42:19,332 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:19,333 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:19,338 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. [2018-03-29 20:42:19,338 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:35, output treesize:7 [2018-03-29 20:42:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:19,367 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:42:19,367 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2018-03-29 20:42:19,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-03-29 20:42:19,367 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-03-29 20:42:19,367 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2018-03-29 20:42:19,368 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 23 states. [2018-03-29 20:42:20,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:20,258 INFO L93 Difference]: Finished difference Result 132 states and 145 transitions. [2018-03-29 20:42:20,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-03-29 20:42:20,258 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 47 [2018-03-29 20:42:20,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:20,259 INFO L225 Difference]: With dead ends: 132 [2018-03-29 20:42:20,259 INFO L226 Difference]: Without dead ends: 131 [2018-03-29 20:42:20,260 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=292, Invalid=1268, Unknown=0, NotChecked=0, Total=1560 [2018-03-29 20:42:20,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-03-29 20:42:20,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 105. [2018-03-29 20:42:20,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-03-29 20:42:20,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2018-03-29 20:42:20,273 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 47 [2018-03-29 20:42:20,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:20,273 INFO L459 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2018-03-29 20:42:20,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-03-29 20:42:20,274 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2018-03-29 20:42:20,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-03-29 20:42:20,275 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:20,275 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:42:20,275 INFO L408 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:20,275 INFO L82 PathProgramCache]: Analyzing trace with hash -625421328, 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 [2018-03-29 20:42:20,282 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:20,305 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:20,347 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:42:20,348 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 [2018-03-29 20:42:20,350 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 [2018-03-29 20:42:20,351 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:20,354 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:20,357 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. [2018-03-29 20:42:20,357 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-29 20:42:20,415 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-29 20:42:20,421 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-29 20:42:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:20,441 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:20,510 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_14| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_14|))) (= |c_old(#valid)| (store (store (store |c_#valid| |v_main_#t~malloc9.base_14| 1) |c_main_#t~malloc8.base| 0) |v_main_#t~malloc9.base_14| 0)))) is different from false [2018-03-29 20:42:20,514 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_14| Int) (|v_main_#t~malloc8.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_13| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_14| 1) |v_main_#t~malloc8.base_13| 0) |v_main_#t~malloc9.base_14| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_13|))) (not (= 0 (select .cse0 |v_main_#t~malloc9.base_14|)))))) is different from false [2018-03-29 20:42:20,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:20,553 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:42:20,554 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-03-29 20:42:20,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 20:42:20,554 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 20:42:20,554 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-03-29 20:42:20,554 INFO L87 Difference]: Start difference. First operand 105 states and 115 transitions. Second operand 16 states. [2018-03-29 20:42:20,563 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc9.base_14| Int) (|v_main_#t~malloc8.base_13| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_13| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_14| 1) |v_main_#t~malloc8.base_13| 0) |v_main_#t~malloc9.base_14| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_13|))) (not (= 0 (select .cse0 |v_main_#t~malloc9.base_14|))))))) is different from false [2018-03-29 20:42:20,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:20,854 INFO L93 Difference]: Finished difference Result 195 states and 214 transitions. [2018-03-29 20:42:20,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-29 20:42:20,877 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 52 [2018-03-29 20:42:20,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:20,879 INFO L225 Difference]: With dead ends: 195 [2018-03-29 20:42:20,879 INFO L226 Difference]: Without dead ends: 182 [2018-03-29 20:42:20,880 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-03-29 20:42:20,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-03-29 20:42:20,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 180. [2018-03-29 20:42:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-03-29 20:42:20,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 198 transitions. [2018-03-29 20:42:20,901 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 198 transitions. Word has length 52 [2018-03-29 20:42:20,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:20,902 INFO L459 AbstractCegarLoop]: Abstraction has 180 states and 198 transitions. [2018-03-29 20:42:20,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 20:42:20,902 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 198 transitions. [2018-03-29 20:42:20,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-03-29 20:42:20,903 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:20,904 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:42:20,904 INFO L408 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:20,904 INFO L82 PathProgramCache]: Analyzing trace with hash 257699090, 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 [2018-03-29 20:42:20,914 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:20,938 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:20,974 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:42:20,975 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 [2018-03-29 20:42:20,977 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 [2018-03-29 20:42:20,978 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:20,982 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:20,985 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. [2018-03-29 20:42:20,986 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-29 20:42:21,077 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-29 20:42:21,081 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-29 20:42:21,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:21,099 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:21,159 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_16| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_16|))) (= (store (store (store |c_#valid| |v_main_#t~malloc9.base_16| 1) |c_main_#t~malloc8.base| 0) |v_main_#t~malloc9.base_16| 0) |c_old(#valid)|))) is different from false [2018-03-29 20:42:21,169 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_15| Int) (|v_main_#t~malloc9.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_15| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_16| 1) |v_main_#t~malloc8.base_15| 0) |v_main_#t~malloc9.base_16| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc9.base_16|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_15|)))))) is different from false [2018-03-29 20:42:21,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:21,208 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:42:21,208 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-03-29 20:42:21,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 20:42:21,208 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 20:42:21,208 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-03-29 20:42:21,209 INFO L87 Difference]: Start difference. First operand 180 states and 198 transitions. Second operand 16 states. [2018-03-29 20:42:21,229 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc8.base_15| Int) (|v_main_#t~malloc9.base_16| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_15| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_16| 1) |v_main_#t~malloc8.base_15| 0) |v_main_#t~malloc9.base_16| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc9.base_16|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_15|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-29 20:42:21,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:21,676 INFO L93 Difference]: Finished difference Result 270 states and 296 transitions. [2018-03-29 20:42:21,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-29 20:42:21,677 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2018-03-29 20:42:21,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:21,679 INFO L225 Difference]: With dead ends: 270 [2018-03-29 20:42:21,679 INFO L226 Difference]: Without dead ends: 257 [2018-03-29 20:42:21,680 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-03-29 20:42:21,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-03-29 20:42:21,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 181. [2018-03-29 20:42:21,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-03-29 20:42:21,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 199 transitions. [2018-03-29 20:42:21,707 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 199 transitions. Word has length 53 [2018-03-29 20:42:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:21,707 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 199 transitions. [2018-03-29 20:42:21,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 20:42:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 199 transitions. [2018-03-29 20:42:21,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-03-29 20:42:21,709 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:21,709 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:42:21,709 INFO L408 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:21,709 INFO L82 PathProgramCache]: Analyzing trace with hash -255199913, 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 [2018-03-29 20:42:21,718 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:21,743 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:21,791 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:42:21,792 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 [2018-03-29 20:42:21,794 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 [2018-03-29 20:42:21,794 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:21,800 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:21,803 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. [2018-03-29 20:42:21,804 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-29 20:42:21,878 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-29 20:42:21,881 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-29 20:42:21,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:21,888 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:21,918 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_18| Int)) (or (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_18|))) (= (store (store (store |c_#valid| |v_main_#t~malloc9.base_18| 1) |c_main_#t~malloc8.base| 0) |v_main_#t~malloc9.base_18| 0) |c_old(#valid)|))) is different from false [2018-03-29 20:42:21,922 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_18| Int) (|v_main_#t~malloc8.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_17| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_18| 1) |v_main_#t~malloc8.base_17| 0) |v_main_#t~malloc9.base_18| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_17|))) (not (= 0 (select .cse0 |v_main_#t~malloc9.base_18|)))))) is different from false [2018-03-29 20:42:21,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:21,974 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:42:21,974 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-03-29 20:42:21,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 20:42:21,974 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 20:42:21,975 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-03-29 20:42:21,975 INFO L87 Difference]: Start difference. First operand 181 states and 199 transitions. Second operand 16 states. [2018-03-29 20:42:21,995 WARN L1011 $PredicateComparison]: unable to prove that (and (= |c_#valid| |c_old(#valid)|) (forall ((|v_main_#t~malloc9.base_18| Int) (|v_main_#t~malloc8.base_17| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_17| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_18| 1) |v_main_#t~malloc8.base_17| 0) |v_main_#t~malloc9.base_18| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_17|))) (not (= 0 (select .cse0 |v_main_#t~malloc9.base_18|))))))) is different from false [2018-03-29 20:42:22,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:22,460 INFO L93 Difference]: Finished difference Result 270 states and 296 transitions. [2018-03-29 20:42:22,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-29 20:42:22,460 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2018-03-29 20:42:22,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:22,461 INFO L225 Difference]: With dead ends: 270 [2018-03-29 20:42:22,461 INFO L226 Difference]: Without dead ends: 257 [2018-03-29 20:42:22,462 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-03-29 20:42:22,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2018-03-29 20:42:22,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 181. [2018-03-29 20:42:22,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-03-29 20:42:22,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 199 transitions. [2018-03-29 20:42:22,480 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 199 transitions. Word has length 53 [2018-03-29 20:42:22,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:22,480 INFO L459 AbstractCegarLoop]: Abstraction has 181 states and 199 transitions. [2018-03-29 20:42:22,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 20:42:22,480 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 199 transitions. [2018-03-29 20:42:22,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-03-29 20:42:22,481 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:22,481 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:42:22,481 INFO L408 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:22,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1150338933, 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 [2018-03-29 20:42:22,487 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:22,506 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:22,539 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:42:22,539 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 [2018-03-29 20:42:22,542 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 [2018-03-29 20:42:22,542 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:22,547 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:22,552 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. [2018-03-29 20:42:22,553 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:15 [2018-03-29 20:42:22,632 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |c_main_#t~malloc9.base|)) (= |c_#valid| (store (store .cse0 |c_main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-29 20:42:22,636 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_#t~malloc8.base| Int) (|main_#t~malloc9.base| Int)) (let ((.cse0 (store |c_old(#valid)| |main_#t~malloc8.base| 1))) (and (= 0 (select .cse0 |main_#t~malloc9.base|)) (= |c_#valid| (store (store (store .cse0 |main_#t~malloc9.base| 1) |main_#t~malloc8.base| 0) |main_#t~malloc9.base| 0)) (= 0 (select |c_old(#valid)| |main_#t~malloc8.base|))))) is different from true [2018-03-29 20:42:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:22,643 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:22,677 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc9.base_20| Int)) (or (= (store (store (store |c_#valid| |v_main_#t~malloc9.base_20| 1) |c_main_#t~malloc8.base| 0) |v_main_#t~malloc9.base_20| 0) |c_old(#valid)|) (not (= 0 (select |c_#valid| |v_main_#t~malloc9.base_20|))))) is different from false [2018-03-29 20:42:22,681 WARN L1011 $PredicateComparison]: unable to prove that (forall ((|v_main_#t~malloc8.base_19| Int) (|v_main_#t~malloc9.base_20| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_19| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_20| 1) |v_main_#t~malloc8.base_19| 0) |v_main_#t~malloc9.base_20| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc9.base_20|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_19|)))))) is different from false [2018-03-29 20:42:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:22,725 INFO L320 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-03-29 20:42:22,725 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11, 6] imperfect sequences [] total 15 [2018-03-29 20:42:22,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-03-29 20:42:22,725 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-03-29 20:42:22,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=107, Unknown=4, NotChecked=92, Total=240 [2018-03-29 20:42:22,726 INFO L87 Difference]: Start difference. First operand 181 states and 199 transitions. Second operand 16 states. [2018-03-29 20:42:22,737 WARN L1011 $PredicateComparison]: unable to prove that (and (forall ((|v_main_#t~malloc8.base_19| Int) (|v_main_#t~malloc9.base_20| Int)) (let ((.cse0 (store |c_#valid| |v_main_#t~malloc8.base_19| 1))) (or (= (store (store (store .cse0 |v_main_#t~malloc9.base_20| 1) |v_main_#t~malloc8.base_19| 0) |v_main_#t~malloc9.base_20| 0) |c_old(#valid)|) (not (= (select .cse0 |v_main_#t~malloc9.base_20|) 0)) (not (= 0 (select |c_#valid| |v_main_#t~malloc8.base_19|)))))) (= |c_#valid| |c_old(#valid)|)) is different from false [2018-03-29 20:42:23,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:23,131 INFO L93 Difference]: Finished difference Result 183 states and 199 transitions. [2018-03-29 20:42:23,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-03-29 20:42:23,131 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 54 [2018-03-29 20:42:23,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:23,133 INFO L225 Difference]: With dead ends: 183 [2018-03-29 20:42:23,133 INFO L226 Difference]: Without dead ends: 170 [2018-03-29 20:42:23,134 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 94 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=283, Unknown=6, NotChecked=190, Total=552 [2018-03-29 20:42:23,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-03-29 20:42:23,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 92. [2018-03-29 20:42:23,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-03-29 20:42:23,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2018-03-29 20:42:23,149 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 54 [2018-03-29 20:42:23,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:23,149 INFO L459 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2018-03-29 20:42:23,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-03-29 20:42:23,150 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2018-03-29 20:42:23,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-03-29 20:42:23,150 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:23,151 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-03-29 20:42:23,151 INFO L408 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:23,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1513716263, now seen corresponding path program 2 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 [2018-03-29 20:42:23,159 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:23,179 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:23,182 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 [2018-03-29 20:42:23,183 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:23,185 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:23,185 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-03-29 20:42:23,194 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-03-29 20:42:23,196 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 12 treesize of output 11 [2018-03-29 20:42:23,196 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:23,197 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:23,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:23,198 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-03-29 20:42:23,276 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 [2018-03-29 20:42:23,283 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 14 [2018-03-29 20:42:23,284 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-29 20:42:23,287 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:42:23,293 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:42:23,293 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:32 [2018-03-29 20:42:23,375 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:23,375 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:23,721 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 15 treesize of output 13 [2018-03-29 20:42:23,735 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2018-03-29 20:42:23,735 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:23,736 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:23,741 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:42:23,741 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:35 [2018-03-29 20:42:23,841 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:23,875 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:42:23,876 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2018-03-29 20:42:23,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-03-29 20:42:23,876 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-03-29 20:42:23,876 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2018-03-29 20:42:23,876 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand 32 states. [2018-03-29 20:42:24,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:24,878 INFO L93 Difference]: Finished difference Result 111 states and 118 transitions. [2018-03-29 20:42:24,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-03-29 20:42:24,879 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 56 [2018-03-29 20:42:24,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:24,879 INFO L225 Difference]: With dead ends: 111 [2018-03-29 20:42:24,879 INFO L226 Difference]: Without dead ends: 110 [2018-03-29 20:42:24,880 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=524, Invalid=2026, Unknown=0, NotChecked=0, Total=2550 [2018-03-29 20:42:24,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-03-29 20:42:24,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 65. [2018-03-29 20:42:24,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-03-29 20:42:24,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2018-03-29 20:42:24,891 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 56 [2018-03-29 20:42:24,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:24,891 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2018-03-29 20:42:24,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-03-29 20:42:24,891 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2018-03-29 20:42:24,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-03-29 20:42:24,892 INFO L347 BasicCegarLoop]: Found error trace [2018-03-29 20:42:24,892 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-03-29 20:42:24,892 INFO L408 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr1RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr3RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr2RequiresViolation, __U_MULTI_fopenbsd_cstrspn_alloca_true_valid_memsafety_true_termination_i__cstrspnErr0RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4EnsuresViolationMEMORY_LEAK, mainErr0RequiresViolation]=== [2018-03-29 20:42:24,892 INFO L82 PathProgramCache]: Analyzing trace with hash 381585505, 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 [2018-03-29 20:42:24,901 INFO L68 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-03-29 20:42:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-03-29 20:42:24,926 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-03-29 20:42:24,929 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 [2018-03-29 20:42:24,929 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:24,935 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 [2018-03-29 20:42:24,935 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:24,939 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:24,939 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-03-29 20:42:24,958 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:42:24,961 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 [2018-03-29 20:42:24,962 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:24,971 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:42:24,971 INFO L700 Elim1Store]: detected not equals via solver [2018-03-29 20:42:24,972 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 [2018-03-29 20:42:24,972 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:24,977 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:24,977 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-03-29 20:42:24,996 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 [2018-03-29 20:42:24,997 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 [2018-03-29 20:42:24,997 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:24,999 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:25,002 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:25,003 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-03-29 20:42:25,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-03-29 20:42:25,019 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-03-29 20:42:25,020 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:25,024 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:25,028 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. [2018-03-29 20:42:25,028 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:28 [2018-03-29 20:42:25,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2018-03-29 20:42:25,607 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 [2018-03-29 20:42:25,608 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-03-29 20:42:25,617 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 22 treesize of output 14 [2018-03-29 20:42:25,617 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:25,623 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:42:25,638 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-03-29 20:42:25,638 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:60, output treesize:40 [2018-03-29 20:42:25,802 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:25,802 INFO L314 TraceCheckSpWp]: Computing backward predicates... [2018-03-29 20:42:27,297 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 26 treesize of output 28 [2018-03-29 20:42:27,325 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-03-29 20:42:27,326 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-03-29 20:42:27,332 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-03-29 20:42:27,340 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-03-29 20:42:27,340 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:65, output treesize:74 [2018-03-29 20:42:29,314 WARN L148 SmtUtils]: Spent 1823ms on a formula simplification that was a NOOP. DAG size: 34 [2018-03-29 20:42:29,720 WARN L148 SmtUtils]: Spent 328ms on a formula simplification that was a NOOP. DAG size: 34 [2018-03-29 20:42:29,739 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-03-29 20:42:29,760 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-03-29 20:42:29,760 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 55 [2018-03-29 20:42:29,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-03-29 20:42:29,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-03-29 20:42:29,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=2841, Unknown=0, NotChecked=0, Total=3080 [2018-03-29 20:42:29,762 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 56 states. [2018-03-29 20:42:34,274 WARN L151 SmtUtils]: Spent 119ms on a formula simplification. DAG size of input: 100 DAG size of output 71 [2018-03-29 20:42:37,045 WARN L151 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 82 DAG size of output 77 [2018-03-29 20:42:37,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-03-29 20:42:37,396 INFO L93 Difference]: Finished difference Result 112 states and 119 transitions. [2018-03-29 20:42:37,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-03-29 20:42:37,396 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 62 [2018-03-29 20:42:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-03-29 20:42:37,396 INFO L225 Difference]: With dead ends: 112 [2018-03-29 20:42:37,396 INFO L226 Difference]: Without dead ends: 0 [2018-03-29 20:42:37,399 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2137 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=1907, Invalid=10083, Unknown=0, NotChecked=0, Total=11990 [2018-03-29 20:42:37,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-03-29 20:42:37,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-03-29 20:42:37,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-03-29 20:42:37,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-03-29 20:42:37,399 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-03-29 20:42:37,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-03-29 20:42:37,400 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-03-29 20:42:37,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-03-29 20:42:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-03-29 20:42:37,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-03-29 20:42:37,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-03-29 20:42:37,686 WARN L151 SmtUtils]: Spent 203ms on a formula simplification. DAG size of input: 261 DAG size of output 248 [2018-03-29 20:42:38,184 WARN L151 SmtUtils]: Spent 496ms on a formula simplification. DAG size of input: 298 DAG size of output 288 [2018-03-29 20:42:38,342 WARN L151 SmtUtils]: Spent 144ms on a formula simplification. DAG size of input: 152 DAG size of output 1 [2018-03-29 20:43:09,341 WARN L151 SmtUtils]: Spent 30960ms on a formula simplification. DAG size of input: 277 DAG size of output 137 Received shutdown request... [2018-03-29 20:44:46,715 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-03-29 20:44:46,716 INFO L168 Benchmark]: Toolchain (without parser) took 156106.03 ms. Allocated memory was 304.1 MB in the beginning and 657.5 MB in the end (delta: 353.4 MB). Free memory was 240.5 MB in the beginning and 400.1 MB in the end (delta: -159.6 MB). Peak memory consumption was 282.0 MB. Max. memory is 5.3 GB. [2018-03-29 20:44:46,717 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 304.1 MB. Free memory is still 266.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-03-29 20:44:46,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.08 ms. Allocated memory is still 304.1 MB. Free memory was 240.5 MB in the beginning and 216.3 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. [2018-03-29 20:44:46,718 INFO L168 Benchmark]: Boogie Preprocessor took 61.94 ms. Allocated memory is still 304.1 MB. Free memory was 216.3 MB in the beginning and 214.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-03-29 20:44:46,718 INFO L168 Benchmark]: RCFGBuilder took 497.20 ms. Allocated memory was 304.1 MB in the beginning and 464.5 MB in the end (delta: 160.4 MB). Free memory was 213.3 MB in the beginning and 400.4 MB in the end (delta: -187.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 5.3 GB. [2018-03-29 20:44:46,718 INFO L168 Benchmark]: TraceAbstraction took 155196.74 ms. Allocated memory was 464.5 MB in the beginning and 657.5 MB in the end (delta: 192.9 MB). Free memory was 400.4 MB in the beginning and 400.1 MB in the end (delta: 343.6 kB). Peak memory consumption was 281.5 MB. Max. memory is 5.3 GB. [2018-03-29 20:44:46,720 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 304.1 MB. Free memory is still 266.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 342.08 ms. Allocated memory is still 304.1 MB. Free memory was 240.5 MB in the beginning and 216.3 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 61.94 ms. Allocated memory is still 304.1 MB. Free memory was 216.3 MB in the beginning and 214.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 497.20 ms. Allocated memory was 304.1 MB in the beginning and 464.5 MB in the end (delta: 160.4 MB). Free memory was 213.3 MB in the beginning and 400.4 MB in the end (delta: -187.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 155196.74 ms. Allocated memory was 464.5 MB in the beginning and 657.5 MB in the end (delta: 192.9 MB). Free memory was 400.4 MB in the beginning and 400.1 MB in the end (delta: 343.6 kB). Peak memory consumption was 281.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 547]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 564]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 563]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 313. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Fixed_noBitfields+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-03-29_20-44-46-727.csv Completed graceful shutdown